I have an '86 Bronco with an 8.8 locker diff. that has a worn ring and pinion whine, which will stop when I let off the accelerator. This is a junk yard rear end I put in more than 5 years ago. I doubt I would find anything better in a junk yard as everything there seems to be worn out. I am aware that I can buy a new ring and pinion, but I am wondering if there is any benefit in trying to adjust the wear out of the pinion shaft bearings. This rear end has a crush spacer for bearing adjustment. Has anyone done this and if so did it quieten things down?