Just put a 4speed back together. Concerned.

[MPGvan]

it is nice to know the dealers still stand behind these little old cars.. hahaha

i still have a few questions to help evaluate the condition of this old transmission with 225thousand miles on it....lol

 

1. can i fill the transmission with a product called Pourpunch?? it is a thick sticky oil additive much like STP OIL Treatment.. i believe this will bond to the gears and muffle some of the gear noise.... if the grinding noise stops then i know the noise was cumming from INSIDE the trans.

 

2. i replaced the front cv axles but did not check the FWD bearings at the transmission or the driveshaft bearing/seal at the rear of the transmission

is there a trick to this... like can i just grab the CV-Axle/driveshaft and shake it a few times and feel/listan for slop??

 

Thank you

[Idasho]

I would not use any kind of additive.

 

I WOULD give it a fluid service though. Drain and refill with the correct gear oil. And possibly do a short service with the new fluid. As in, drive for a few hundred miles, then drain and refill again.

 

If you had bad bearings, you would know about it. Traditionally a bad front bearing, or bad diff bearing will cause the associated seals to leak.

 

Bad U-joints on the rear driveshaft is probable though, and is easy to check.

 

During this trans service I found one of the driveshaft u-joints a bit stiff, so I repacks all of them. Im hoping it was the slight high speed vibration I was feeling before I took the car down for a service.