JY PERFORMANCE Truck Rear Axle Flip Kit 5in Drop C Notch Kit

In this review of the JY PERFORMANCE Truck Rear Axle Flip Kit, the bottom line is clear: this kit is for C10/C15 and 1/2 ton GMC owners from 1973 through 1987 who want a straightforward way to lower the rear by 5 in without complicated fabrication. The reviewer found it to be a solid bolt-on solution that delivers the promised ride height change and a clean look, and it stands out for its simple hardware package and straightforward fitment. This review focuses on real-world fit, installation notes, and whether the kit gives good value for the money.

Key Features

• Vehicle compatibility: Designed specifically for 1973-1987 Chevrolet and GMC pickups, so buyers get a direct-fit solution for those model years.
• 5 in rear drop: The kit achieves a 5 in rear lowering, producing a lowered stance without modifying the frame beyond the bolt-on components.
• Complete hardware package: Includes axle locators, axle mounting plates, U-bolts, lock nuts, and washers so installers have the primary components needed for assembly.
• Shock compatibility: Built to remain compatible with existing shocks on these trucks, simplifying shock selection and reuse during installation.
• Bolt-on installation: The parts are designed for a bolt-on install, which reduces the need for welding or custom brackets for many users.

Who It's For

The kit is aimed at classic Chevy and GMC truck owners who want a reliable 5 in rear drop with minimal fabrication, including DIYers comfortable with axle and suspension work and small shops doing routine installs. It suits projects where maintaining shock compatibility and a clean axle mount are priorities.

Those who should look elsewhere include owners of trucks outside the 1973-1987 pick-up window, or buyers who need a fully documented install kit; this package does not include written instructions, so novices who require step-by-step guidance or a kit with decals and templates may prefer a different option.

Pros & Cons

Pros

• Solid build quality and durable hardware give confidence in long-term use and durability.
• Ease of installation for experienced installers thanks to the bolt-on design and included mounting components.
• Good fit and function on compatible Chevy and GMC pickups, producing the intended 5 in drop and clean axle alignment.

Cons

• No printed instructions are included, so installers should be comfortable following general axle-flip procedures or using online resources.
• Fitment is strictly for 1973-1987 C10/C15 and similar 1/2 ton models, so it is not universal across other years or chassis types.

Specifications

Brand	JY PERFORMANCE
Application	1973-1987 Chevrolet / GMC pickups (C10, C15, 1/2 ton)
Rear drop	5 in
Included hardware	Axle locators, axle mounting plates, U-bolts, lock nuts, washers
Installation	Bolt on
Shock compatibility	Compatible with existing shocks for listed trucks

Our Verdict

The JY PERFORMANCE rear axle flip kit is a practical, good-value choice for owners of 1973-1987 Chevy and GMC pickups who want a reliable 5 in rear drop with minimal fabrication. It delivers solid fit and function and includes the core hardware needed for installation, but buyers should be prepared to follow general installation procedures since no instructions are provided.

Frequently Asked Questions

Will this kit work with stock shocks?
Yes, the kit is designed to be shock compatible for the listed model years, so many stock shocks can be retained, though shock length should be checked during installation.

Are installation instructions included?
No, the package does not include printed instructions, so installers should rely on general axle flip procedures or online guides.

Does it require welding?
No, the design is a bolt-on solution using included mounting plates and U-bolts, so welding is typically not required for the basic install.