Manley Valve Spring, SPRING-1.550 DOUBLEFrom drag strips to short track and endurance circuits, the Manley NexTek series is engineered for serious racers. NexTek springs resist pressure loss and valve train degradation even in the most demanding race conditions. That means more consistent spring force deep into a run, reduced valve bounce, and improved overall stability for high RPM performance. Built to outperform and outlast in real world competition.

6410 - 1973-1987 GM C10 Flip Kit

comfortable operation

The rear mounting brackets feature two settings that allow the lift bar to be lowered 2" or 3" depending on user preference and the vehicles suspension set-up

For 1984-to-present V-Twin American motorcycle engines

self-lubricating ball joint is offered with multiple stud lengths

Sway bar mounts fit UMI 90066 and other aftermarket 1-5/16" sway bars

Introducing the UMI Performance 2015–2025 Ford F-150 premium upper a-arms for lowered trucks

III and Dexron IIIH

Expandable Gear Compartment Is Ideal For Storing Boots

The brace is available in gloss black and UMI red

while full-weight big block engines might see an additional 1/4" drop

Includes upper and lower control arms