Re: Nasty vibration and a loose rear pinion nut. 10.25
This is the #1 biggest most common problem with the 10.25. It DOES have a crush sleeve, yes. Replace it with a solid spacer ASAP (I should heed my own advice).
10.25s have a nasty habit of eating pinion bearings, mine runs hot as it is, around 150 degrees at the pinion snout on the highway. The 14 bolt in my van runs at 115 degrees under the same conditions (IR guns are cool!)