This SPC Performance steel shim pack (box of six) measures 4 x 6.5 and provides a 1.0° caster/pinion angle change for 4" wide leaf spring applications. Built from high-strength steel alloy for maximum compression strength, these shims are intended to adjust steer or drive axle angles in demanding service. One part number supplies six shims per box; be sure to provide spring pad length and width when ordering to confirm fitment for your axle setup.
SPC Performance Steel Shim 4X6.5X1 - Pack of 6