We carefully cleaned and reused our old shim pack to begin setting the front output shaft endplay. Factory specs call for 0.002-0.005-inch endplay. Torque the cover bolts to 30lb-ft and give the snout of the output shaft a good whack or two with the dead-blow hammer to seat the bearings and races. Then, use a dial caliper to measure the shaft end play. We wound up needing to mix and match shims between the new and old shim packs, making our new pack thicker than the one we started with.