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Topic: Transmission Leak at Driveshaft (Read 1497 times) previous topic - next topic

Transmission Leak at Driveshaft

I had set the TV cable pretty tight (I heard it was better to have it tight than loose), and shifts were  harsh... Teeth rattling enough that now I noticed the transmission has a slight leak at the rear of the tail housing where the driveshaft enters. 

I reset the TV cable and now shifts are smooth, but now what has to be done to fix the rear leak?  I'm guessing the real rough shifts spread out the rear seal? 

Is a special tool needed to replace the seal?  Is it better to just have a tranny shop do it?


V6->V8HO 88 LS
5.0L V8 87 XR7

Transmission Leak at Driveshaft

Reply #1
seal puller should be all that you need once you get your drive shaft out of the way.  be prepared to lose alittle fluid.

Transmission Leak at Driveshaft

Reply #2
Okay, I bought the seal, but it also came with a new bushing (big round cylinder of metal about 2 inches long), and I read that for leaks it is best to replace the seal and bushing....

The seal pulling/installing I'm thinking I can use a screwdriver/chisel to pull it out, and just a pound the new one in with a block of wood.

Bushing pullers look like they are very expensive like $80.  Any shade tree mechanic way of pulling/installing these?


V6->V8HO 88 LS
5.0L V8 87 XR7

Transmission Leak at Driveshaft

Reply #3
Just to close this one..
  - I just replaced the rear seal, the bushing definitely needed a special tool.

 - Found there are two replacement seals out there.  I went with the one with the boot, as it matches the one that came stock with the vehicle.
 
  - The seal can be pryed out with some flat blade screwdrivers and a chisel.  But getting the new one in, you pound one side in, then go to the other side and then it pops out the opposite side... After 20 minutes of playing that game I figured I needed a better way...:hick:
 
You need a way of pounding on the rim of the seal all at once, so I cut a block of 2x4 wood and cut a hole in it.  Then when you pound on the wood block it pushes the seal in at all sides at once.

I replaced the dip stick O ring at the same time.

Best part: No More Leaks!:giggle:

Here are some pics, of the two seal types, and the home made tool:



V6->V8HO 88 LS
5.0L V8 87 XR7

Transmission Leak at Driveshaft

Reply #4
I need to pick me up a new dipstick o ring .... reading this reminded me:)
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