No pinion seal on donor rear end, clean area and go?

[jordanblea]

Hey there fellas, first post here thanks for all of the info that I have been able to pick thru and get me this far! Anyways I am replacing my 12 bolt rear with another from the wrecking yard and am about ready to put everything back together. Being my first rear end job I wasn't 100% on what does or does not need to be on it. Turns out there is no pinion seal and it is all dirty where the seal goes. What needs to be done, can it just be cleaned out with break cleaner? I am here looking for direction, so please and thank you! Sorry if this is the wrong place to post. Thanks again!!

[kelsfine69]

It should be taken apart and cleaned, Install new bearings and seal. Good time to check and replace the axle bearings and seals as well. If your going thru all the work to swap diffs, then this is what I would do. It will be better in the long run

[truckster]

You need to at least remove the bearings and inspect them closely. Replace all the seals. Check the gears for wear.

Dirt, dust, and moisture are not the friends of bearings and gears.

[jordanblea]

Thank you guys, taking apart is what I am trying to avoid lol. I am not familiar with shims and backlash and what not, yet! I called the wrecking yard and kinda raised a little hell and they had another one same gears and all that I just went and picked up. Everything is there, looks like anyways. Before I install it's probobly a good idea to pull the cover and inspect, at least get fresh oil in there I would think. Thanks again for your input!

[truckster]

Originally Posted by jordanblea

Thank you guys, taking apart is what I am trying to avoid lol. I am not familiar with shims and backlash and what not, yet! I called the wrecking yard and kinda raised a little hell and they had another one same gears and all that I just went and picked up. Everything is there, looks like anyways. Before I install it's probobly a good idea to pull the cover and inspect, at least get fresh oil in there I would think. Thanks again for your input!

I would still inspect the seals (look for signs of leaking) and bearings (turn the axles and listen for unpleasant noises). If everything checks out, fresh oil and you're down the road....

[jordanblea]

Originally Posted by truckster

I would still inspect the seals (look for signs of leaking) and bearings (turn the axles and listen for unpleasant noises). If everything checks out, fresh oil and you're down the road....

Thats the plan! From here on no news is good news I guess! Thanks again guys. (Keeping em crossed, lol)