I have just pulled my transmission out of my 4.3L 1991 Blazer due to a leak. The front oil seal looks to have seen better days, and is clearly leaking. I have been trying for some time now to get that thing out, but to no avail. Could somebody please give me a couple pointers or tips on getting it out. I heard they are hard, but wow! I'm hoping there is something that I am missing.

 

theres a seal puller out there . never saw one but i need to do the same job on my truck

 

the few ive done were also a pain in the yang yang. I always ended up ripping them up with channel locks and taking the thing out chunks at a time. Getting one in is just as fun. When you try to knock in one side the other side pops back out. I used a piece of pipe and a hammer. placed the pipe around the ring and tapped on it. I dont remember what size it was.

 

yea sometimes its just easier to do it that way. I would replace mines but i never dropped a trans alone before so im not gonna try. and my dads to busy to help me . once i get some cash in imma let someone do it for me

 

buy me a plan ticket and a 12 pack and im on my way!

 

Lol i would

 

Thanks for the replies. I guess I'll just keep heaving on it!

 

Do you have the oil drained? If os just stand it up on end since the transfer case adaptor will keep it up off the tailshaft. If not, skip that part.

To remove the seal, go around it with a putty-knife and a small hammer. Gently tap the putty knife in between the seal and the pump cover (after you've removed the retaining clip). Once you get the 1/16" gap or so created by the putty knife, you can go at with with a flathead screwdriver. Using a twisting, slowly work the seal out by going around the seal and twisting more as you go. You may need to go to a larger screwdriver near the end.

Installing is a pain but once you get a method down it's not so bad. Be sure to look at the condition of the bushing in the pump cover. It's just behind the seal. That will wear out and cause the converter to drop thus giving you the leaky seal. So while you're at it check that as well.

 

So I used a drum brake tool to get behind the gasket, and bent the heck out of it. Then I used pliers and it popped out.