I have a 2001 5.3 Vortec engine with a 350 turbo (year unknown) in my 49 pickup. The transmission is leaking I believe from the pan gasket and the shifter shaft seal. I am not having any issues with the transmission and it shifts fine. I just got this truck about 4 months ago so I want to take it in and have the transmission serviced. I did this on a car some years ago and they flushed the transmission out and it never did shift right after that. I had to have it rebuilt. I fear the same thing may happen again. I was thinking of just having the fluid, filter, & gaskets changed along with the shifter shaft seal. What are your thoughts?
