Rear Leaf Spring Shackle Repair Kit Rearward Pair - Direct Fit 722-006

In this review the Rear Leaf Spring Shackle Repair Kit (rearward pair) is examined for owners of late 1980s and 1990s Chevy and GMC C/K pickup trucks who need a direct replacement to restore rear suspension alignment and ride comfort. The kit is targeted at DIY mechanics and restorers working on 1988-99 Chevy C/K 1500/2500/3500 and 1988-2000 GMC K1500/2500/3500 models; the single biggest reason to buy is that it replaces the original rear shackles and associated hardware exactly, meeting OEM specifications so the parts line up during installation.

Key Features

• Direct replacement: Replaces dealer part number 15640442 so installers get a precise fit without modification.
• Complete rearward kit: Includes both LH and RH shackles with bushings plus mounting bolts and locking nuts for a full rear shackle replacement.
• OEM-level quality: Built to strict quality control standards and designed to meet or exceed the original equipment specifications for reliable performance.
• Fits common models: Made to fit both 2WD and 4WD versions of the listed Chevy and GMC trucks for broad compatibility.
• Durable components: Shackles and bushings are made from quality materials intended for long service life under typical truck loads.

Who It's For

The kit is best for owners of 1988-99 Chevy C/K 1500, 2500, 3500 and 1988-2000 GMC K-series trucks who need to replace only the rear leaf spring shackles and want hardware that matches the original mounting points. It suits backyard mechanics and independent shops comfortable with basic suspension work who appreciate a packaged set that includes bushings and fasteners.

Those who should look elsewhere include owners of trucks equipped with Velvet Ride suspension and anyone needing front shackles or additional suspension parts; this kit specifically replaces only the rear shackles on the rear leaf springs and does not cover front or unique suspension variants.

Pros & Cons

Pros

• Good fit and alignment during installation thanks to OEM-matching dimensions.
• Complete kit reduces parts hunting by including shackles, bushings, bolts and locking nuts.
• Quality materials and factory testing contribute to durable, long-lasting performance.

Cons

• Functionality reports are mixed for some users, so results may vary with vehicle condition and installation details.

Specifications

Our Verdict

For owners who need a straightforward rear shackle replacement that matches factory dimensions, this rearward pair kit represents good value because it bundles all required hardware and adheres to OEM standards. It is recommended for 1988-99 Chevy and 1988-2000 GMC pickup trucks without Velvet Ride suspension, especially when alignment and ease of installation matter to the installer.

Frequently Asked Questions

Will this kit fit both sides of the rear axle?
Yes, the kit includes parts for both LH (driver) and RH (passenger) rear shackles.

Does this kit include all necessary bolts and nuts?
Yes, the package contains 4 mounting bolts and 4 locking nuts along with shackles and bushings.

Can this be used on trucks with Velvet Ride suspension?
No, the kit does not fit models equipped with Velvet Ride suspension.