UB Machine 15 Series "WSP" Upper Control Arm - Steel Shaft - 10-1/2" - Bolt-In Ball Joint Gauge Wiring Harness and the race is stainless

and the race is stainless steel that has been heat treated

Louvered Tray

Also standard on our chassis that some other manufactuers will actually charge you for (beleive it

Superior dog clutch design provides the most durability and the smoothest shifting available

UB Machine 15 Series "WSP" Upper Control Arm - Steel Shaft - 10-1/2" - Bolt-In Ball Joint Gauge Wiring Harness and the race is stainlessStandard Upper Control Arms with steel inner shaft with 6" hole spacing. Bolt in style accepts #ALL56204 Allstar Ball Joint (sold separately). UB Machine manufactures suspension and braking components for a variety of street and track applications. Their product line includes control arms, brake caliper brackets, spring shackles, jack screws, and more. UB Machine has the most innovative and highest quality products on the market. Product Description: