I'm going to get some use out of my 4r70w before it finally kicks the bucket, I'm going to j mod it and race it, but mostly in 2nd thankfully, before I even think about that I need to address the horrible end play this thing has. I thought it was a u joint or the diff because every tie you let off the throttle it'll make a real harsh clunk. I've wiggled the drive shaft and everywhere has been tight except the tail shaft. I can attach a video of my wiggling it. Is there a bushing in there I can replace? I don't care if the trans is perfect, I just don't want it to send the driveshaft through the trans tunnel.