i just complete my suspension upgrade. and noticed a vibration in the rear end (was told it was the dispus cupler on the rear of the driveshaft, drive it its ok) so i did.getting worst though, then tranny started to shift hard. i was told to check to see if the fluid in the overflow had tranny fluid in it and it does, new info.. install seperate tranny cooler flush system (coolent,tranny) and this may fix the problem worst case trannys shot. replace it. does this sound about right? has anyone had this problem, or had to do this type of work to there x, and what kind of $$ do you think were talking about?

You might need a new radiator. The stock tranny cooler is inside it and if it's leaking into the coolant then most likely even bypassing it you're going to have to deal with coolant leaking into the now empty transmission cooler. You might want to rent a radiator pressure tester from vatozone and check out the condition of the radiator.

A new radiator is not that expensive aftermarket and add 100 bucks for having the transmission flushed.

Like GFX said, you just need a new radiator. Put in new fluid and see how the tranny does... You will probably need a new transmission in the end, but try just a radiator at first.

well $1500 later i got it back. new rad, new external cooler, rerouted the lines, and double flushed the whloe thing. ohh ya dealer threw in a free oil change.ha. drove great for about 2hrs than the vibration came back. iv been driving it localy for about two days now and im feeling a loss of power in the down shift, and rear wheel tork(sp). ideas?? mine is to send it to a tranny shop and have it rebuilt. ????? . can an aftermarket shift kit be installed at this time, and does anyone know where to get one

150 miles after dealership,and 1500 later i look in the rad and overfill and guess what i saw SLUGE all this was supost to fix the problem. enough is enough already. i think i got hosed by the dealer