Suspension and Components Suspension Kits

ProComp

88-99 6In GM K1500 4WD Box Box 4 Of 5 -

$275.27

SKU: P020 51088B-4

In Stock
In Stock
Ships by Jun 13
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Pro Comp 51088B-4 is a suspension component box designed for 6-inch lift applications. It includes parts for Pro Comp Suspension lift kits K1048B, K1048BMX, K1047B, and K1047BMX4.

This box contains drop brackets, steering correction components, and rear lift blocks with add-a-leafs. It also includes Pro Comp ES9000 Series shocks for the front and rear. The system is made in the USA.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandProComp
Part NumberP020 51088B-4

Videos

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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