ARP 0.438 in ID Steel Flat Washer - 0.950 in OD - Black Oxide (Set of 20) 2010415 Dyno-Proven Gains up to +18

Dyno-Proven Gains up to +18 HP & +22 Lbs

These adjusters have 2-1/2" of RH thread and 2-1/2" of LH thread

1976-1986 GMC Jimmy

drain plug

2001-2005 Chevrolet Silverado 3500 LT Crew Cab Pickup

ARP 0.438 in ID Steel Flat Washer - 0.950 in OD - Black Oxide (Set of 20) 2010415 Dyno-Proven Gains up to +18Product Description: Flat Washer 0. 438 in ID 0. 95 in OD Steel Black Oxide Set of 20 ARP is the fastener of champions. They say that to be successful you must identify a need and satisfy it. Back in 1968 racing enthusiast Gary Holzapfel saw that many of his friendsa broken engines were caused by fastener failure. At the time, there were no commercially available studs and bolts up to the challenge. So Holzapfel called upon his many years of fastener