Hello all, I have a 1994 s10 blaze that has a leaking seal on the rear diff, just behind the drive shaft. Can anyone tell me where the fluid fill plug is hidden on this diff? Any tips on replacing the seal? I think it's been bad a while, since now if I accelerate on a bit of a curve, the whole truck shakes a lot. Any tips folks?

 

*Moving to Steering, Suspension, & Drivetrain* So that you can get the help you need. The New Member Area is for new member introductions and not tech help.

You really do not have to drain the gear lube out to change the seal, but it would not hurt to service the diff while you are working on it. There is no drain on the diff. You have to remove the rear cover. The fill plug is located on the passenger side in front of the axle tube.

I have detailed the replacement in the past. Search for "differential seal" or "pinion yoke" and my username as the author.