








Street Connection
Suspension that
actually drives.
Custom Fit suspension systems developed on our own hot rods first. Engineered to ride, handle, and stop — not just to look right at a show.
The problem
Most classic-car suspension is a compromise.
Original geometry was engineered for bias-ply tires and 55 mph roads. Custom Fit kits often trade one compromise for another — new ride height, old geometry. We started Street Connection because our customers wanted their cars to drive like modern vehicles without losing the character of a classic.
Our answer
Geometry first. Components second.
Every Street Connection system starts with the geometry — camber curves, roll center, anti-dive — then the components are engineered to hit those targets. Everything is tested on our own cars before it ships.
Vehicle packages
A-Body Mopar
Suspension packages and components for 1967–1969 Barracuda, 1967–1976 Dart / Scamp, 1970–1976 Duster / Demon, and 1967–1971 Valiant.

Customer build showing the stance our A-Body kit delivers.
1959–1960 Buick
Custom Fit suspension packages and components designed for the 1959–1960 Buick platform.

Rendering by J.M. Ford Designs — the stance our kit is designed to achieve.
B-Body Mopar — in development
B-Body Mopar suspension systems are currently in R&D. Sign up below to be notified when they are available.
Shop
Street Connection products.

Braided AN Fuel Hose
Nuke Performance Black Nylon AN Braided Fuel Hose Nuke Performance offers a wide selection of fuel hose and hose ends. The Full Flow AN series is ready for all types of motorsports applications and is safe for all types of fuel, including alcoholic fuels such as ethanol. Black Nylon braided nitrile fuel hose with stainless steel braiding The AN fuel hose from Nuke Performance is available in AN-4 / AN-6 / AN-8 / AN-10 / AN-12. Currently you can get it in 20 ft lengths from Hammer Fab.
$27.50

Full Flow Straight AN-Hose Ends
Nuke Performance Full Flow AN Hose Ends We offer a careful selection of Hose Ends to be used in combination with our complete range of high-performance fuel upgrade parts. CNC-machined and hard anodized for a long-lasting, corrosion-free appearance and function. Designed to stand up to the destructive properties of alcohol fuels, including ethanol and methanol. The Full Flow series is available in AN-4 / AN-6 / AN-8 / AN-10 / AN-12. Full Flow, Nuke Performance premium AN hose ends, for all types of motorsport applications. Available in AN-4 / AN-6 / AN-8 / AN-10 / AN-12. Ethanol approved high quality, lightweight, full flow hose end fittings for nitrile fuel hose. Nuke Performance offers a wide range of hose ends. With the AN lineup, you get a perfect solution for all types of fuels. Wide variation and in various sizes. Available in AN-4 / AN-6 / AN-8 / AN-10 / AN-12 For Nuke Performance Full-Flow AN fuel hose Full Flow hose ends for motorsports applications Straight / 30 / 45 / 60 / 90 / 120 / 150 / 180 degree Safe for all type of fuels, including ethanol The Nuke Performance Full Flow series offers AN hose ends and a premium black nylon race hose which is reinforced with a single braid of bright, corrosion-resistant type 302 stainless steel wire braid, and the black braided nylon cover makes this lightweight hose both durable and attractive. Safe for alcoholic fuels, but for long-time use you should look into the Nuke Performance Full Flow PTFE series with a much longer life span when used with alcoholic fuels such as ethanol.
$14.10

Full Flow 30 Degree AN-Hose Ends
Nuke Performance Full Flow AN Hose Ends We offer a careful selection of Hose Ends to be used in combination with our complete range of high-performance fuel upgrade parts. CNC-machined and hard anodized for a long-lasting, corrosion-free appearance and function. Designed to stand up to the destructive properties of alcohol fuels, including ethanol and methanol. The Full Flow series is available in AN-4 / AN-6 / AN-8 / AN-10 / AN-12. Full Flow, Nuke Performance premium AN hose ends, for all types of motorsport applications. Available in AN-4 / AN-6 / AN-8 / AN-10 / AN-12. Ethanol approved high quality, lightweight, full flow hose end fittings for nitrile fuel hose. Nuke Performance offers a wide range of hose ends. With the AN lineup, you get a perfect solution for all types of fuels. Wide variation and in various sizes. Available in AN-4 / AN-6 / AN-8 / AN-10 / AN-12 For Nuke Performance Full-Flow AN fuel hose Full Flow hose ends for motorsports applications Straight / 30 / 45 / 60 / 90 / 120 / 150 / 180 degree Safe for all type of fuels, including ethanol The Nuke Performance Full Flow series offers AN hose ends and a premium black nylon race hose which is reinforced with a single braid of bright, corrosion-resistant type 302 stainless steel wire braid, and the black braided nylon cover makes this lightweight hose both durable and attractive. Safe for alcoholic fuels, but for long-time use you should look into the Nuke Performance Full Flow PTFE series with a much longer life span when used with alcoholic fuels such as ethanol.
$34.25

Full Flow 60 Degree AN-Hose Ends
Nuke Performance Full Flow AN Hose Ends We offer a careful selection of Hose Ends to be used in combination with our complete range of high-performance fuel upgrade parts. CNC-machined and hard anodized for a long-lasting, corrosion-free appearance and function. Designed to stand up to the destructive properties of alcohol fuels, including ethanol and methanol. The Full Flow series is available in AN-4 / AN-6 / AN-8 / AN-10 / AN-12. Full Flow, Nuke Performance premium AN hose ends, for all types of motorsport applications. Available in AN-4 / AN-6 / AN-8 / AN-10 / AN-12. Ethanol approved high quality, lightweight, full flow hose end fittings for nitrile fuel hose. Nuke Performance offers a wide range of hose ends. With the AN lineup, you get a perfect solution for all types of fuels. Wide variation and in various sizes. Available in AN-4 / AN-6 / AN-8 / AN-10 / AN-12 For Nuke Performance Full-Flow AN fuel hose Full Flow hose ends for motorsports applications Straight / 30 / 45 / 60 / 90 / 120 / 150 / 180 degree Safe for all type of fuels, including ethanol The Nuke Performance Full Flow series offers AN hose ends and a premium black nylon race hose which is reinforced with a single braid of bright, corrosion-resistant type 302 stainless steel wire braid, and the black braided nylon cover makes this lightweight hose both durable and attractive. Safe for alcoholic fuels, but for long-time use you should look into the Nuke Performance Full Flow PTFE series with a much longer life span when used with alcoholic fuels such as ethanol.
$34.10

Full Flow 45 Degree AN-Hose Ends
Nuke Performance Full Flow AN Hose Ends We offer a careful selection of Hose Ends to be used in combination with our complete range of high-performance fuel upgrade parts. CNC-machined and hard anodized for a long-lasting, corrosion-free appearance and function. Designed to stand up to the destructive properties of alcohol fuels, including ethanol and methanol. The Full Flow series is available in AN-4 / AN-6 / AN-8 / AN-10 / AN-12. Full Flow, Nuke Performance premium AN hose ends, for all types of motorsport applications. Available in AN-4 / AN-6 / AN-8 / AN-10 / AN-12. Ethanol approved high quality, lightweight, full flow hose end fittings for nitrile fuel hose. Nuke Performance offers a wide range of hose ends. With the AN lineup, you get a perfect solution for all types of fuels. Wide variation and in various sizes. Available in AN-4 / AN-6 / AN-8 / AN-10 / AN-12 For Nuke Performance Full-Flow AN fuel hose Full Flow hose ends for motorsports applications Straight / 30 / 45 / 60 / 90 / 120 / 150 / 180 degree Safe for all type of fuels, including ethanol The Nuke Performance Full Flow series offers AN hose ends and a premium black nylon race hose which is reinforced with a single braid of bright, corrosion-resistant type 302 stainless steel wire braid, and the black braided nylon cover makes this lightweight hose both durable and attractive. Safe for alcoholic fuels, but for long-time use you should look into the Nuke Performance Full Flow PTFE series with a much longer life span when used with alcoholic fuels such as ethanol.
$31.30

Full Flow 90 Degree AN-Hose Ends
Nuke Performance Full Flow AN Hose Ends We offer a careful selection of Hose Ends to be used in combination with our complete range of high-performance fuel upgrade parts. CNC-machined and hard anodized for a long-lasting, corrosion-free appearance and function. Designed to stand up to the destructive properties of alcohol fuels, including ethanol and methanol. The Full Flow series is available in AN-4 / AN-6 / AN-8 / AN-10 / AN-12. Full Flow, Nuke Performance premium AN hose ends, for all types of motorsport applications. Available in AN-4 / AN-6 / AN-8 / AN-10 / AN-12. Ethanol approved high quality, lightweight, full flow hose end fittings for nitrile fuel hose. Nuke Performance offers a wide range of hose ends. With the AN lineup, you get a perfect solution for all types of fuels. Wide variation and in various sizes. Available in AN-4 / AN-6 / AN-8 / AN-10 / AN-12 For Nuke Performance Full-Flow AN fuel hose Full Flow hose ends for motorsports applications Straight / 30 / 45 / 60 / 90 / 120 / 150 / 180 degree Safe for all type of fuels, including ethanol The Nuke Performance Full Flow series offers AN hose ends and a premium black nylon race hose which is reinforced with a single braid of bright, corrosion-resistant type 302 stainless steel wire braid, and the black braided nylon cover makes this lightweight hose both durable and attractive. Safe for alcoholic fuels, but for long-time use you should look into the Nuke Performance Full Flow PTFE series with a much longer life span when used with alcoholic fuels such as ethanol.
$31.30

-6 AN Line Clamp (Braided hose)
These -6 AN line clamps are designed for use with braided fuel lines, as well as for mounting cables, tubes, and wire harnesses. Featuring 1/4-20 socket cap fasteners, they provide a secure and durable solution for managing loose ends.
$5.00

A/N Bulkhead Brackets
Why waste valuable time creating your own bulkhead brackets? We understand the struggle of constantly making them for each hard line fuel system. That's why we offer a more efficient solution. Our A/N bulkhead brackets are expertly crafted from 304 stainless steel, precision-cut and bent with pre-drilled holes for effortless installation on your chassis, firewall, or body. No painting required - simply bolt it on and you're good to go! Choose from single or double configurations for -6 and -8 AN fittings. -6 for fuel vent as pictured
$9.99

A/N Brake Line Bulkhead Brackets
Why waste valuable time creating your own bulkhead brackets? We understand the struggle of constantly making them for each hard line brake system. That's why we offer a more efficient solution. Our A/N bulkhead brackets are expertly crafted from 304 stainless steel, precision-cut and bent with pre-drilled holes for effortless installation on your chassis, firewall, or body. No painting required - simply bolt it on and you're good to go! Choose flat or bent 90 for versatility
$8.50

A-Body Mopar- Street Connection Suspension Kit
Introducing the "Street Connection" Suspension - Chassis Upgrades for A-Body Mopars by Hammer Fab Are you looking to upgrade your Mopar’s suspension for an enjoyable driving experience and superior handling, all while nailing that perfect stance? Look no further! The "Street Connection" by Hammer Fab is designed to make A-Bodies cool again! Unmatched Performance and Stance We’ve gone the extra mile to ensure your Mopar not only rides smoothly and handles exceptionally well, but also maintains the ideal stance and wheel/tire options. Our comprehensive kit is engineered to provide the ultimate balance between performance and aesthetics. Street Connection Minimum KIT includes: Versatile K-Member: This K-member can be installed as either a bolt-in or weld-in unit, replacing the outdated gearbox with a modern Detroit Speed rack and pinion system. Standard tie rod ends. (No bulky “bump steer” nonsense) Adjustable Coilovers: Say goodbye to old torsion bars. Our kit features Ride Tech adjustable coilovers for a customized ride height and improved handling. Enhanced Control Arms: Utilizing the reliable Mustang-style upper and lower control arms, we've refined the camber/caster adjustment process. It's now easier than ever to add or remove alignment shims. Rubber bushings make for a more comfortable ride than polyurethane, Delrin, or rod ends. Wilwood Pro dropped spindles Billet aluminum dropped steering arms by Hammer Fab. Weld-in chassis stiffeners and cross members Ford 9-Inch rear housing, triangulated 4 link with R joints (raw steel) Complete Solution: We’ve designed our suspension system to work perfectly as a cohesive unit. For the best results, we strongly recommend using only the components included in our kit. We’ve done the hard work so you don’t have to. Optional Upgrades: Baer T4 disc brakes with signature satin black finish with gloss black letters. Bolt patters 5x4.5” and 5x4.75” come standard. Baer Remaster billet master cylinder, proportioning valve, line kit, and two residual valve. Superior Handling Kit: Beefy splined sway bars for both the front and rear for unmatched stability and cornering prowess. Moser 3rd Member with 31 or 35 Spline axles for Ford 9 Inch housing (Higher and lower gear sets available on special request) Steering shaft U-Build It kits NEW* Stainless headers for Gen 3 Hemi- Form fit perfectly for our kit and your A-body! Thoroughly Tested Our K-member has been rigorously tested on our test car “SLOBAK,” successfully fitting a 440 big block Mopar under a stock hood with no cutting to the stock floor pan. This setup requires a modified Dodge truck rear sump oil pan to achieve a 4” ground clearance. Our K-member has also been fit with a 340 small block Mopar in a 340 Formula S. This setup also requires a Dodge truck rear sump oil pan, and oil pickup. Oil pan may be modified for extra ground clearance, but is not required. Future tests will include fitting a LS engine, and even a Gen 3 Hemi engine. Gen 3 Hemi requires a Holley rear sump oil pan. We currently only guarantee the fitment of a big block Mopar, and small block Mopar but you are welcome to build and weld your own custom mounts to this bare metal K-member. *NEW- We now offer form fit stainless headers for Gen 3 Hemi. These are designed to work with our K-member specifically. They include a 1/2" thick laser cut stainless flange that bolts to the head, 316L raw textured stainless 1-7/8" primary tubes (TIG welded and fixtured for precision fit), and 3" V-band collectors (this is the only way we will sell them). Guaranteed to fit. Designed with driver side and passenger side starter clearance in mind. Also designed with suspension adjustment in mind. Enhanced Stiffness The kit also includes mid-frame stiffeners, or “frame connectors,” that tie the front and rear of the car together for a sturdier ride. If you plan on applying more than 350 hp to your car, it is recommended to use these. They require welding to the stock floor pans but do not require any cutting. We opted for the “L” channel style instead of a tubular style for several reasons: Rigidity: Made from very rigid 10ga laser cut steel that is contoured to fit the stock floor with 3D scanning technology. Less Warpage: Welding one edge creates less warpage along the length of the car. Breathability and Protection: The “L” shape allows the metal to breathe, preventing trapped moisture, and also enables painting on all sides of the steel to avoid rust traps. Comprehensive Rear Suspension The "Street Connection" kit includes a rear suspension setup to ensure a complete transformation. Our rear system features: Triangulated Four-Link Setup: Utilizes R-joints from Ride Tech for superior articulation and strength. Beefy 9” Housing (RAW STEEL) With multiple gearing options available. Torino style ends and 31-spline axles from Gear FX Driveline. (Optional) Baer SS4 Brakes with signature satin black calipers with gloss black letters. TIG welded steel rear end brackets Adjustable Coilovers: Ride Tech adjustable coilovers provide a smooth and customizable ride. (Spring rate options for customizable ride) (Optional) Rear Splined Sway Bar: Added for superior handling. 10ga Steel Crossmembers: Weld-in crossmembers that tie into the stock floor pan and side frame rails for enhanced rigidity. Rear Frame Stiffening Plates: Made from 10ga steel, these plates require welding, grinding, and fitting by the user to ensure a solid connection. Easy Installation While some mechanical work and welding are required, we've made the installation process straightforward with detailed instructions and instructional video links. Once installed, adjusting and fine-tuning your suspension is a breeze. Transform your A-Body Mopar with the "Street Connection" by Hammer Fab. Experience the perfect blend of comfort, handling, and killer stance, all in one complete package. Street Connection install videos: Click Here Check out Street Connection in action: Click Here If you would like us to install your kit contact us here: Click Here
$11,750.00

Stainless Brake Line weld Tabs with Clamps
Clean, secure brake line mounting—built for serious builds. These stainless steel weld-on threaded tabs pair with a matching clamp for a simple, rock-solid hold. Each tab includes a stainless brake line clamp and a stainless button head fastener (10-32) for an easy install. Perfect for custom chassis, restorations, and high-end fabrication. Available in 12-piece kits
$24.95

59-60 Buick Suspension, Engine, Transmission, Driveline upgrades
1959–1960 Buick Suspension Packages Complete Air Ride Performance System This package is engineered to transform the stance, ride quality, and drivability of your ’59–’60 Buick—without overcomplicating installation or sacrificing real-world usability. Every component works together as a cohesive system, delivering modern performance with a clean, serviceable layout. Built from real-world testing and fabrication experience, this system balances ride comfort, strength, and adjustability while maintaining proper geometry and long-term durability. What This Package Delivers Improved handling and steering response Correct geometry for modern wheel fitment Smooth, predictable air ride performance Strong, serviceable components Clean integration with minimal modification This is a complete, engineered system—not a mix of parts. Front Suspension System Optimized for 20” Wheels(20x9 / 4.25” BS, 255/40/20 recommended) Designed for improved geometry, strength, and steering precision with seamless air ride integration. Includes: Modified upper/lower control arms with HD ball joint cups, fixtured and TIG welded (core required) Wilwood Pro spindles (5x4.75 or 5x5) Moog ball joints HF upper ball joint plates and lower cups SS7 air springs with hardware and swivel fittings TIG-welded upper/lower air bag plates with cups and risers Steering Upgrade: CNC-machined tie rod sleeves for ’59–’60 Buicks Integrated dropped steering adapters 3/4” heim joints for improved articulation and reduced bind No core required Additional components: KYB shocks (front/rear included) 1-1/4” solid splined sway bar with arms and links Bolt-on sway bar reinforcement brackets (laser cut/CNC bent, includes hole saw + hardware) Weld-on upper shock brackets Extended bump stops with weld-in T-nuts (prevents shock overextension) Bolt Pattern Note:Factory pattern is 5x5. To retain stock wheels (including 15”), select the 5x5 Wilwood brake option. Rear Suspension System Optimized for 22” Wheels(22x10 / 5.75” BS, 275/40/22 recommended) Built for strength, articulation, and proper driveline geometry with a smooth, quiet ride. Includes: Tube-laser-cut crossmember with body mounts, 4-link tabs, exhaust clearance, carrier bearing mount Adjustable triangulated 4-link with rubber bushings Pre-set pinion angle Minimal rear floor modification (hump included) Fixture-built, TIG-welded axle brackets SS8 air springs with hardware Upper bag mounts (bolt-in or weld-in) Rear crossmember reinforcement plate (also cutting template) Bolt-on upper shock mounts TIG-welded Ford 9” housing with dual pattern axles (5x4.75 / 5x5) Weld-on upper 4-link brackets Rear crossmember pumpkin bump for added clearance Delivers excellent articulation and stability while remaining quiet and street-friendly. Engineering Approach Designed using 3D scanning and CAD Built for strength, alignment accuracy, and repeatable install Tested on a real ’59 Buick LeSabre Convertible Pre-determined geometry eliminates guesswork Clean, structurally sound air ride integration (USA components) Modifications are minimal and intentional Fitment & Notes Front: 20” wheel optimized Rear: 22” wheel optimized Factory bolt pattern: 5x5 Optional 5x4.75 available Uses factory Saginaw steering box, drag link, and tie rods LS swap: select correct kit (includes oil pan for drag link clearance) Control arm core required (refund issued upon return; multiple sets accepted) Minimal rear floor modification under rear seat Multiple gear ratios available for third member For drivetrain packages, proper matching of cam, converter, gearing, and tire size is critical. Contact info@hammerfab.com for guidance. Bottom Line This system modernizes your ’59–’60 Buick into a capable, well-balanced chassis with aggressive stance, smooth ride quality, and confident handling. Tested. Refined. Built to work—not just look good. Additional Notes Some components are model-specific—verify before ordering Front inner fenders may require modification for max drop No firewall or tunnel cutting required Factory engine mounts must be removed and replaced (templates included) Includes 3D-printed guides, instructions, and video support (QR codes provided) Send us your install photos—we’ll feature your build If ordering a Don Hardy Engine please expect longer lead times for that Item. Depending on options, some items will be drop shipped from the respective manufacturer such as radiator, drive shaft, engine, trans, etc. SHIPPING NOTE: The $500 is a base flat rate shipping fee (initial product cost-Shopify and google needed this in order to show up on other platforms, it has no way to calculate freight costs). If shipping price exceeds this amount we will invoice you for the balance before all products ship. International orders must be done through a manual invoice that we will send you via email. Please screen shot the list of items you want and we will put together the order for you. Please allow 2-6 weeks for complete delivery. We have most items on hand but some pieces need to be made to order. Thank you for understanding.
$500.00

59-60 Buick LS Swap Engine Mounts (Oil Pan Included)
This LS swap engine mount system is built for strength, accuracy, and proper drivetrain placement. The engine brackets are laser cut from 3/8” steel and utilize proven Energy Suspension polyurethane mounts for durability and vibration control. Chassis-side plates are laser cut from 1/4” steel and weld in place of the factory Nailhead mounting plates. The kit includes precision 3D-printed templates that register off the factory mounting pads, ensuring correct cut angle and placement on the first attempt. Installation requires cutting and welding. A full install video is available via QR code in the product images or on our YouTube channel. What’s Included: 3/8” laser-cut engine brackets 1/4” weld-on chassis plates Energy Suspension polyurethane mounts 3D-printed alignment templates Required hardware Critical Fitment Note:This kit includes a specific oil pan that must be used to properly clear the factory steering drag link.
$675.95

59-60 Buick 4L80E Transmission Crossmember
This heavy-duty crossmember is built from 3/16” steel and precision-engineered using 3D scan data to maximize exhaust clearance, simplify installation, and maintain proper floor clearance. Each unit is laser cut, CNC bent, and TIG welded in Texas—100% Made in the USA. Includes locating templates and step-by-step instructions, plus a video QR code for guided installation. Installation requires drilling four new 3/8” holes into the factory “C” section of your original K-frame. Key Features: Precision laser cut and CNC bent for accurate fitment Grade 8 mounting hardware included Designed to work with our 1959–1960 Buick LS engine mounts Optimized placement eliminates the need to modify the transmission tunnel Additional Notes: Factory driveshaft hoop will require minor clearancing Compatible with our optional 2-piece driveline setup
$275.95

59 Buick K-member Drive Shaft/ Exhaust loop
If you plan on upgrading your 59-60 Buick with our 4L80E and LS swap kit you will also want to grab one of these. The stock K-member hoop is not quite big enough to clear the modern style drive shaft so you will need to cut out a section of your existing K-member and weld this bad boy in. It will add all the strength back and then some. It comes with a drop out, bolt in bottom plate which makes servicing the trans and driveshaft much easier. You could also use this drop out perch as an exhaust hanger mount if you wanted. This loop also serves as the exhaust pass through so that your exhaust and transmission no longer have to grab the ground or limit how low you can go!
$225.00

59 Buick LS Swap Radiator (Johnsons Radiator Works)
Johnsons Radiator for 1959 Buick Lesabre, Invicta, or Electra all models with LS Swap (or LT) in mind. This Radiator was designed in collaboration with Hammer Fab and Johnsons Radiator Works specifically for LS/LT swaps. It bolts directly into the stock location and has the correct inlet and outlet port sizes for modern LS/LT hookup. It is designed to accept at least 700HP heat demands. We recommend installing a separate transmission cooler which is why this one does not come with a built in cooler. Accepts a modern billet or standard radiator cap and has overflow tube. Also has a petcock drain at the bottom. It you plan on installing our front suspension with splined sway bar this will clear and fit perfectly! Made in USA. Place your order here and we will take care of the rest. Please allow 2-4 weeks for production. These are made to order and will be drop shipped to you. 40% Increased Cooling Efficiency vs. Aluminum Our BIGGEST questions - Why choose JRW? And why copper/brass? To start, copper has a 40% MORE thermal cooling efficiency over aluminum. Paired with a proprietary serpentine fin design we use - designed by Walker Radiator - with over 600,000 louvers in each radiator. This eliminates air boundary build up inside the core. Vehicles from the 1930’s have up to 40% less core size than today’s cars/trucks. Majority of todays cars/trucks are equipped with 400-500hp, AC condensers, and are daily driven demanding a resilient cooling system - and that’s where we come into play.
$1,625.00

