ProjectF150sc

Well I was driving my 04 f150 and heard a grinding noise after I made a right turn, and stripped all the gears in the carrier, so I ripped it out and threw in a new Yukon posi unit, I reused the rack in pinion, they were both un harmed. I installed the new carrier with new bearings, and used Yukon adjustable shims, there was no issues until I started to coast them a whining started, not bad but it's there, I've heard that the pre load on the bearings can cause the whine, so I think that's it, what side should I add shims the side closest to the rack (pushing it closer to the pinion) or the opposite side? Any opinions?

nrivera04

Did you change the pinion bearings?

ProjectF150sc

No those were left untouched