Size Chart
×
SKU: 5283 | UPC: 806990064721
QA1 5283 adjustable rear frame support reinforces upper and lower trailing arm mounts on 1964-1967 GM A-Body vehicles with trailing arm suspension. Built from 1-inch diameter cold rolled steel tubing it eliminates chassis flex to deliver sharper handling better traction and consistent suspension performance. Zinc plated threaded sleeves enable precise preload adjustments after installation and the design clears stock and aftermarket mufflers.
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1964-1967 | Buick | Skylark | Base |
| 1964-1967 | Buick | Special | Base |
| 1964-1967 | Buick | Special | Deluxe |
| 1965-1967 | Buick | Gran Sport | Base |
| 1964-1967 | Chevrolet | Chevelle | Base |
| 1965-1967 | Chevrolet | Chevelle | Deluxe |
| 1964-1967 | Chevrolet | Chevelle | SS |
| 1967 | Chevrolet | Chevelle | 300 |
| 1967 | Chevrolet | Chevelle | 300 Deluxe |
| 1964-1967 | Chevrolet | El Camino | Base |
| 1964-1967 | Chevrolet | Malibu | Base |
| 1964-1967 | Oldsmobile | 442 | Base |
| 1964-1967 | Oldsmobile | Cutlass | Base |
| 1964-1967 | Oldsmobile | Cutlass | Holiday |
| 1964-1967 | Oldsmobile | Vista Cruiser | Base |
| 1964-1967 | Oldsmobile | Vista Cruiser | Custom |
| 1964-1967 | Pontiac | GTO | Base |
| 1964-1967 | Pontiac | LeMans | Base |
| 1964-1967 | Pontiac | Tempest | Base |
| 1964-1967 | Pontiac | Tempest | Custom |
| 1964-1967 | Pontiac | Tempest | Safari |
Chassis bracing reduces structural flex in unibody and body-on-frame vehicles, improving handling precision, steering response, and suspension geometry consistency under cornering loads. Front strut braces, rear chassis braces, and underbody reinforcement kits all target different flex points depending on the vehicle and build goals. Popular Upgrades The most popular chassis bracing upgrades include front upper strut tower bars for reduced front-end flex, rear lower chassis braces for improved rear subframe rigidity, underbody X-braces and torque boxes for full chassis stiffening, and sway bar end link braces for more predictable corner entry behavior. Many enthusiasts pair front and rear bracing for the greatest improvement in overall chassis feel. What does chassis bracing actually do for handling? Chassis flex causes subtle but measurable changes in suspension geometry during cornering and acceleration. Reducing flex with bracing keeps the suspension working as designed, which tr...
View Chassis Bracing Products
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
Shop aftermarket suspension parts and kits from Bilstein, KW Suspension, Ohlins, Fox, KING, ICON Vehicle Dynamics, BC Racing, Silvers, Eibach, H&R, Swift Springs, Whiteline, Energy Suspension, Moog, SPC Performance, Rough Country, ReadyLIFT, BDS Suspension, Skyjacker, Air Lift, Firestone, and Black Ops Auto Works. Find coilovers, lowering springs, lift kits, leveling kits, shocks and struts, sway bars, control arms, tie rods, ball joints, bushings, subframe braces, alignment kits, air suspension systems, and vehicle-specific suspension packages for cars, trucks, SUVs, Jeeps, and off-road builds. Start with a matched shock-and-spring package or a full coilover kit before layering in sway bars, chassis bracing, and camber adjustment hardware. Shop by category, brand, vehicle year, make, model, and trim. Aftermarket suspension systems improve handling, ride quality, and ride height adjustment beyond what factory suspension provides. From lowering springs and coilover kits for s...
View Suspension Products