Ok took the car in today and replaced the TC and TCC solenoid, shifts perfect now lock up is perfect but at 55 and above it has a vibration that feels like tires.

I took it back to the tire dealer he checked all the balance and for a bad tire he said the rear right rim was slightly out of round but I took it off and tried the spare, same thing. It shakes the seat and the arm rest and the floor and you can fel in the wheel too.

I took it to 75 mph same thing, wtf could it be ?? Shift into N still there ?? This car is starting to Pi@@ me off big time !!

you can check the bearing by lifting the wheels off the ground and moving the tire left to right. up and down. and feel for play. it should be very minimal.

checked both sides tight .

i just realized this is just a continuation from your earlier thread. no need to post 2 threads for same issue. just confuses people

if the bearing is ok, then id lean towards the rim. especially if the mechanic said it was out of round. and idk if the do-nut is a good test rim. maybe rotate the front and rears, to see if it goes to the front.

This is a "new" problem. Again I changed out the rim and tire in ? with my spare, same symptoms.

is the spare a small "do-nut", or a full size spare?

Your donut is more than likely not balanced.

Ok they called GoodYear and gave me 4 brand new GoodYear Comfort Assurance treads free ! I changed the one rear wheel that had a bend in it ( 90.00 ) and she seems fine now ( fingers crossed ) Hope it stays fine !