I am pretty sure I will have to replace my rear seal around the output shaft. I overfilled the tranny and this caused to much pressure and blew the seal.

Anyone replaced this seal? I have a 5spd. i have done this on an 1960 Ford and was pretty easy.

 

If your asking, Take it to a shop.... they'll do it right the first time, and if not, you have a warranty with the repair.

 

Have you tried simply returning the fluid level to normal, washing off the seal and inspecting for further leakage?

The seal should be simply a 'yank out & slap back in' operation. See if the local parts house has a seal puller (sort of hooked dohicky).

First round in determining whether or not you can do it yourself is to go take a look at a new seal and visualize whether it looks tricky or not.

 

I did it on my 5spd, I think it's the same trany you have(mazda 5spd) It was prety simple...just took of the drive shaft, popped the only seal off with a screw driver and put the new one in place and got a socket a little smaller in diameter and gave it a few taps with a hammer.

Took maybe 20 minutes out of the day.

 

also I parked with the nose of my truck facing down towards the street on my driveway, that way no fluid leaked out when I took the old seal off.

 

I checked today, $18.99 at Napa. I looked at the seal and it is what I and yall expected. You just pop the new one in. I stopped by Ford and they told me it was covered under warranty, but I dont feel like going without my truck for 2 days and waiting on them.


Thanks for the advice spocket, I am sure these trannies are very similar

 

Biggest thing affecting the seal is whether or not the yoke is 'bookered-up'.

Be sure it is not scratched or nicked; and clean it up. Lubricate the seal prior to installation, so the first few revolutions don't burn it (because it's dry against the yoke).

A reason for seal failure is worn tailshaft bushing -- commonly caused by bent or unbalanced driveshaft -- or missaligned driveline (causing wobble in the yoke at the tailshaft).

 

I know that the seal failed, becuase I added to much fluid. Like a qt. to much. I am going to clean everything up and set the fluid level correct and if it still leaks I am changing the seal. It didnt leak until immediatley after I changed the fluid and put to much in.