Originally Posted by amenson
My transmission shifts hard, I ran some sea foam trans tune through it and changed the fluid and filter. It still shifts hard, it also sat for over a year with only being started occasionaly. Is a flush that much different then running some cleaner through and changing the fluid?
Changing your fluid and filter will only get 1/3 of the fluid. A flush will replace all of it.
I agree. Check your trans mounts. Get the car up on ramps, and get a 2x4. Try to move the trans/engine around while watching the mounts. Look for damaged bushings.