CPP Weld-On Rear Leaf Spring Axle Seat Pair 1/2-Ton Chevy/ GMC Truck 55-59/ 3” Axle Tubes
Highlights
- For 3” Rear Axle Tubes
- 2” Wide Weld-On
- Pre-Drilled Locator Holes
- Sold as a Pair
Pair of Classic Performance Products Rear Leaf Spring Axle Seats for 1955-1959 1/2-Ton Chevy and GMC Trucks.
Upgrade your classic truck's rear suspension with the Classic Performance Products rear leaf spring axle seat pair for 1955-1959 1/2-ton Chevy and GMC Trucks. Designed specifically for enthusiasts converting their original rear axle to a later-model assembly, these axle seats provide the mounting surfaces needed to position the rear axle on the factory leaf springs. Engineered to accommodate rear axle tubes measuring 3” in diameter, these seats offer a practical solution for incorporating a modern rear end into your vintage pickup. Rather than spending time removing the original axle seats from your existing rear axle, these replacement components allow you to retain the old assembly as a reference during installation. Whether you are replacing worn suspension components, performing a rear axle swap, or preparing your truck for a custom suspension project, this CPP axle seat pair provides an essential component for your rear suspension modifications.
Features and Benefits:
- Fits 1955-1959 1/2-Ton Chevy/GMC Trucks
- Sold as a pair
- Designed for rear leaf spring suspension applications
- Compatible with rear axle tubes measuring 3” in diameter
- Features a 2” wide axle seat design
- Ideal for installing a later-model rear axle assembly
- Provides mounting surfaces for positioning the rear axle on the leaf springs
- Works with original factory rear leaf springs
- Allows retention of the factory leaf spring suspension configuration
- Features pre-drilled locator holes
- Locator holes assist with rear axle positioning during installation
- Weld-on construction provides a permanent mounting solution
- Requires careful positioning and welding during installation
- Eliminates the need to remove and reuse original axle seats
- Allows the original rear axle to be used as an installation reference
- Suitable for rear axle conversions and suspension modifications
Each seat features a 2” wide design and pre-drilled locator holes that assist with axle positioning and alignment during installation. Designed to work with your truck's original leaf springs, these seats allow you to retain the factory leaf spring configuration while adapting a compatible rear axle assembly. The weld-on design requires the seats to be carefully positioned and securely welded to the axle tubes, providing a permanent mounting solution for your suspension setup.
Vehicle Fitment:
- 1955-1959 Chevy 3100/3200 (Task-Force)
- 1955-1959 GMC 100 (Blue-Chip)
California Residents: Proposition 65 Warning
Related Categories: 1947-1959 GMC Truck Parts, 1947-1959 Chevrolet Truck Parts
Vehicle Fitment
This product will fit the following 47-59 Chevy Truck years:
- 1955,
- 1956,
- 1957,
- 1958,
- 1959,
This product will fit the following 47-59 GMC Truck years:
- 1955,
- 1956,
- 1957,
- 1958,
- 1959,








