Free shipping on eligible orders of $100 or more. Oversized and freight items excluded.

Shop parts / UMI Performance / New

JUICEBUILT

UMI Performance · New

UMI Performance 73-87 GM C10 Lowering Kit (4.5in Front/6in Rear) with UMI shocks

MPN 6400-1 · Store SKU umi6400-1

$1,015.99
CHECK AVAILABILITY0 in supplier warehouses. Ask JuiceBuilt about availability.

Supplier stock checked 11/8/2026, 6:01:40 AM UTC. Adding a part does not reserve it.

30-day returns for unopened, unused new parts

Request a return within 30 calendar days after delivery. New parts must be unopened and unused.

Shipping & returns ↗This policy does not limit rights required by law.

Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.

Product details

UMI’s 6400-1 lowering kit drops your squarebody an eye catching 4.5″/6″ and throws in some great handling to finish it off. This kit includes satin black powder coated 2.5″ drop spindles, UMI 2″ lowering springs, Bilstein shocks and a UMI rear flip kit. 6400-1 - 1973-1987 GM C10 Lowering Kit (4.5″/6″), Bilstein shocks Power Tour, daily driver and corner carver proven Add UMI sway bars for even better performance Minor drilling required for installation 4.5″ total drop front No notch required Bilstein shocks 6″ drop rear Made In USA

Manufacturer fitment & guides

Check 6400-1 against the manufacturer’s application information below.

A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.

More from UMI Performance ↗See the JuiceBuilt workshop ↗

YOUR NEXT MOVE

Your cart.