-9%
Click to zoom in
SKU: US502 | UPC: 806990060884
Custom Street Rod QA1 Ultra Ride Series Shock Absorber US502 - Rebound Adj. Bushing Mount 11.625in/16.875in Aluminum
QA1 US502 Ultra Ride Series delivers custom mount rebound adjustable coil-over performance for street rods and hot rods. This shock fits custom chassis setups with bushing mounts top and bottom providing plush compression and tunable rebound for everyday driving comfort. Lightweight aluminum design allows bolt-in installs ride height changes and reduced unsprung weight across various rodding projects.
Key Features
- Rebound Adjustment: 18 distinct valving clicks let drivers fine-tune handling response while maintaining street-friendly ride quality
- Fixed Compression: Delivers consistent damping for smooth absorption over bumps ideal for rodding and cruising
- Aluminum Construction: Billet body 1.83in diameter weighs just 7.05 lbs to cut suspension mass and improve agility
- Dyno Tested Serialized: Each unit 100% tested on QA1 dyno with serial number for traceability and proven repeatability
- Serviceable Design: Fully rebuildable at QA1 authorized centers extends shock life with easy maintenance
Product Notes
- Extended length 16.875in compressed 11.625in travel 5.25in suits rear applications in many classic chassis
- Made in USA with precision components for durability in street rod use
- Coil-over ready accepts springs separately for custom spring rate setup
Installation Notes
- Professional installation recommended.
- Top mount XM bushing 1in OD x 0.625in ID bottom EB bushing 0.375in hole x 1.125in width
- Bolt-on compatible with standard rod end or heim joint hardware
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Custom | Street Rod | Hot Rod | All Builds |
| Custom | Chevrolet | Pickup | Rear 55-59 |
| Custom | Ford | F-100 | Rear 49-59 |
Why Choose QA1?
- Decades of suspension expertise from motorsports to street
- USA manufactured for consistent quality control
- Engineered valving proven in dyno and real-world testing
Frequently Asked Questions
-
Q: What applications does the US502 fit best
A: Designed for custom street rod rear suspensions with 16.875in max extension common in 49-59 trucks and chassis builds -
Q: What materials are used in construction
A: Billet aluminum shock body with hardened internals and bushing mounts for corrosion resistance and light weight -
Q: How do I service or warranty this shock
A: Rebuildable at QA1 service centers nationwide contact QA1 for warranty details and procedures
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock - ships same or next business day
- Packaging: Secure protective box 3in x 3in x 19in
- Weight: 7.05 lbs
QA1
Shop All QA1 Coilovers, Shocks, Springs, Handling Kits & Suspension Components Browse premium QA1 suspension parts and performance components at Black Ops Auto Works, including coilover kits, shock absorbers, lowering kits, handling kits, suspension conversion systems, four-link systems, springs, struts, rod ends, linkage rods, tube adapters, and suspension hardware for muscle cars, trucks, street builds, drag cars, and pro-touring applications. QA1 is one of the most recognized names in the suspension category, known for engineering products that improve ride quality, adjustability, handling, weight transfer, and overall vehicle control. Why Choose QA1 Suspension Products QA1 products are built for enthusiasts looking to improve suspension performance on classic, street, strip, and performance truck platforms. Popular reasons customers choose QA1 include: Adjustable suspension tuning for street and track use Improved handling, ride control, and weight transfer Vehicle-specific...
View QA1 Products
Shocks and Struts
Shop shocks and struts at Black Ops Auto Works for improved ride control, handling, stability, comfort, towing support, off-road performance, and suspension replacement. This collection includes shock absorbers, monotube shocks, gas shocks, hydraulic shocks, strut assemblies, front struts, rear shocks, coil-over shocks, reservoir shocks, steering dampers, suspension hardware, and vehicle-specific dampers for cars, trucks, SUVs, Jeeps, off-road builds, and performance vehicles. Use this Shocks and Struts collection to find the right suspension upgrade by vehicle, ride height, driving style, and product type. Replacement shocks and struts help restore ride quality, performance shocks improve control and stability, heavy-duty truck shocks support larger vehicles and lifted setups, and off-road shocks help improve durability and control on rough terrain. Shop Shocks and Struts by Brand Black Ops Auto Works carries shocks, struts, and suspension dampers from trusted brands including Bils...
View Shocks and Struts Products
Suspension
Aftermarket suspension systems improve handling, ride quality, and ride height adjustment beyond what the factory suspension provides. From lowering springs and coilover kits for sport handling to lift kits and leveling kits for truck and SUV off-road capability, quality suspension components transform how a vehicle rides and handles. Popular Suspension Upgrades Popular suspension upgrades include coilover kits for adjustable ride height and damping, sport lowering springs for improved handling and reduced body roll, performance shock absorbers and strut assemblies, sway bar and end link upgrade kits, subframe brace kits, and complete suspension packages for lifted trucks and off-road SUVs. Alignment kits including camber bolts and camber arms are also frequently ordered after ride height changes. What is the difference between coilovers and lowering springs? Coilovers are complete shock and spring assemblies with adjustable ride height set by threading the spring perch on the shock...
View Suspension ProductsLet customers speak for us
Looks pretty nice
Looks pretty nice, pricing was good and the reinforcement is a big plus.
Randy H.
Black Ops Auto Works
I emailed customer service to inquire about when it would be shipped
I emailed customer service to inquire about when it would be shipped. They checked and emailed me with the answer. Customer service is A1
Ralph J.
Black Ops Auto Works
Installation was easy
Installation was easy. The price is good and it looks great on the truck.
Ralph J.
RHO Small Grille Badge
Looks as good as it fits
Looks as good as it fits,
zachary d.
Seibon 70-73 Datsun 240Z OE Carbon Fiber Hood
Nothing like it
I love it great sound and response
Luis P.
Legmaker Dodge Durango HEMI Short Ram CAI 2011-Present 5.7L
Car totally diferent with the whole kit
Car totally diferent with the whole kit. Ive stood next to wide bodies and my car gets more attention at times . Ive bought the kit twice already.
Ding D.
2015-2023 Dodge Charger Carbon Fiber Wind Splitters
Fantastic emblem! Exactly what I was looking for
Fantastic emblem! Exactly what I was looking for. Great quality emblem.
Jacobus S.
Direct Connection Black Metallic Fender Badge
Worked great for my aftermarket hood on my Chrysler 2023 300C
Worked great for my aftermarket hood on my Chrysler 2023 300C. Thanks
Robert G.
Windshield Washer Squirter Relocation Kit Universal
Easy to install and makes car sound even better
Easy to install and makes car sound even better love the winn
Tracy H.
Legmaker Challenger/Charger Hellcat Demon & Redeye Air Intake
Awesome customer support
Awesome customer support. Had multiple issues with fedex and these guys were excellent in helping me sort everything out. The drop springs are great too! I highly recommend
Anonymous
Swift Spec-R Lowering springs Jeep Grand Cherokee 2011-2021
100/100! perfect CF crafted cold air intake for 6
100/100! perfect CF crafted cold air intake for 6.4 jeep .. even makes my AWE exhaust sound even deeper and you cam here this thing sucking when accelerating even at normal speeds🥶
srt.boizzz
Legmaker 392 TH Short Ram Jeep Grand Cherokee SRT 2012-2021
