If your going to replace all solenoids and the body you might as well rebuild or get a used tranny from a yard.....But, then again it might be worth your while to wait it out before you drop major money. I had the p1811 code, tranny would shift hard on the 2/3 & 3/4 but fine on the down shifts. It would do this everyday intermittently without fail. I could turn car off for a sec, let everything reset and would drive fine for a while but then begin acting up. Turns out it wasn't the transmission at all. Believe it or not it was the fact that my check engine light no longer worked. The bulb blew out ( this I already knew about ) But because I would periodically check for codes and clear the MIL code every time it caused some sort of misplacement of amps that were supposed to be directed for use to the ses light. Or something to that effect, my mechanic explained it better. Problem solved tho, put in new bulb for ses light and after 3 drive cycles with the ses light coming on ( for sticky egr valve) the transmission once again shifts like a hot knife threw butter. no bumps into any gears and smooth shifts under all driving conditions. I almost dropped $2500.00 for a rebuild when the problem was a $5 dollar bulb. A month later I'm still problem free and Soooooooo thankful that my mechanic has a clue :-) Ask around some more and explore possible electrical issues before dropping major cash. Sooooo glad I did.