Thanks for the input so far.. I do like the SM420 I have.. It is a bit noisy and wines.. I don't know if thats the way it's suppose to sound or not? It functions very well and it has plenty of transmission fluid in it.. so I assume that is how they are suppose to sound? Or perhaps it is time to rebuild it or get a new one? Anyway, I have gone through just about everything in the truck from front to rear with the exception of the transmission.. I thought it my last frontier on this truck save for the body and tires..
If I need to get into the transmission I figured while I had it out I may as well check my options?
