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Message: <blockquote data-quote="stutaeng" data-source="post: 29946" data-attributes="member: 6175">BTW, welcome to the forum. We've got some guys here from the PNW.Here's a description of pinion gear preload, what it is, and why it's important. Same applies to the differential carrier bearing preload: <a href="https://www.google.com/search?q=what+is+pinion+gear+preload+and+why+is+it+important+on+an+axle%3F&rlz=1C1GCFD_enUS1146US1146&oq=what+is+pinion+gear+preload+and+why+is+it+important+on+an+axle%3F&gs_lcrp=EgZjaHJvbWUyBggAEEUYOdIBCTE2MTg0ajBqN6gCALACAA&sourceid=chrome&source=chrome.ob&ie=UTF-8" target="_blank">https://www.google.com/search?q=what+is+pinion+gear+preload+and+why+is+it+important+on+an+axle?&rlz=1C1GCFD_enUS1146US1146&oq=what+is+pinion+gear+preload+and+why+is+it+important+on+an+axle?&gs_lcrp=EgZjaHJvbWUyBggAEEUYOdIBCTE2MTg0ajBqN6gCALACAA&sourceid=chrome&source=chrome.ob&ie=UTF-8</a>It's not uncommon when rebuilding an axle to overtighten the pinion nut (especially if using an impact gun) on the yoke and overcrushing the crush sleeve, resulting in too much preload. You have to remove the yoke, and install a new crush sleeve, which is a PIA and rebuild kits only comes with ONE crush sleeve. Obviously, you won't complete the job until a new one arrives in the mail and you can repeat the process.</blockquote>