I have a 2001 F250 Super Duty 5.4 Triton motor with a Transmission Leak. I have drained the Transmission, replaced the Transmission pan gasket and filter. The auto parts store also had me purchase the Torque Converter bearings/seal along with enough transmission fluid and a bottle of Lukas Transmission fix. Do I really need to replace the bearings/seal if I have everything else already ?

 

If the torque converter hub seal is leaking, it needs to be replaced. If the bushing behind the seal is worn or damaged it needs to be replaced, too. You also need to inspect the polished end of the torque converter. If there is ANY damage on that surface the new seal is going to leak.

Did they sell you a stock replacement seal, or the much improved aftermarket seal that is made from Viton?

You do know to replace these parts the trans has to come out of the truck and get partially torn down, right?


I'd return the Lucas. I won't put it in my transmission, I don't recommend that you put it in yours.

 

Yes sir I do know that it would have to be done that way. I have a good friend that's a mechanic that's going to help me do the rest. I was just asking for another opinion. Thank you