Jim Warman Posted March 20, 2011 Share Posted March 20, 2011 Some of you might not be aware that there has been a change in the pinion nut/crush sleeve for the 10.5 Ford rear diff. The new crush sleeve is the same as the F150 crush sleeve and (according to documentation) requires the use of a pinion nut with a white backing rather than blue. This new crush sleeve appears to crush very easily (and quickly) - I overcrushed my first sleeve in a long, long time. I'm assuming that you could use the old nut/crush sleeve part numbers on a new pinion. Quote Link to comment Share on other sites More sharing options...
DwayneGorniak Posted March 21, 2011 Share Posted March 21, 2011 Wasn't one of the Pinion bearings changed up and different as well? I ran into that twice if I remember correctly. Quote Link to comment Share on other sites More sharing options...
Jim Warman Posted March 21, 2011 Author Share Posted March 21, 2011 I think there's been a few pinion bearings change up... 8.8 aluminum is one I recall. That's not too bad as long as you don't try to mix cups and cones. Using the wrong pinion nut with the wrong crush sleeve is going to be way too easy to do - come pinion seal time. FWIW, I have no idea how critical the nuts are - but I dont want to find out the expensive way. Quote Link to comment Share on other sites More sharing options...
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