These SPC Performance heavy duty shims are used on the lateral link of the Navistar Corporate 6x4 air suspension to center the axle with the frame rails. Placed between the spring hanger and the spring, they also adjust thrust angle and toe.

SPC Performance 36021 Navistar Heavy Duty Alignment Shim Features:

• Centers the axle with the frame rails at the lateral link
• Adjusts thrust angle and toe between the spring hanger and spring
• For Navistar Corporate 6x4 air suspensions
• 1/16 in. nominal thickness
• Steel construction
• Also included in the SPC 36000 shim assortment