Solid pinion spacers replace the factory crush sleeve. These spacers reduce the need to retighten pinion nuts and reduce R&P failure due to excess backlash.

The longer spacer is the 4 cyl design, and the shorter spacer is the 6 cyl & high pinion design. Includes a set of .025 .030 .035 .040 & .045 pinion shims at no additional cost!

Professional installation recommended.