99 CHEVY BLAZER 4X4

  • Tiny
  • ontario_n8v
  • 1999 Chevrolet Blazer
  • 4WD

A few questions regarding rear axle
1. Other then vent line, where to put oil in to differential?

2. Can a differential bearing be replaced without having to take entire assembly out?

I was going to replace wheel bearing and seal after having somebody else re-seal the differential cover;
when I got the cover off, there was no oil in the housing and also noticed one bearing worn enough for rollers to fall out

Tuesday, August 2nd, 2011 AT 1:44 PM

1 Answer

  • Tiny
  • Docfixit
  • Expert
  • 18,991 posts

Fill plug 3/8 square on front of DIFF housing ie. Drive shaft side at level of axle tube. Will need to remove chunk to replace bearings. Suggest a profesional do this or replace DIFF with bone yard one.

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Tuesday, August 2nd, 2011 AT 2:15 PM

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