Originally Posted by WRXRW

the t-56 is an awesome gearbox and has been shown capable of handling ridicolous horsepower, naturally if you start treating it badly then it becomes like any other how long is a piece of string scenario. ppg now makes a 1-4th gearset replacement (although i would love to keep it sensible for the street) so its something to consider when the time comes, if it does.

the rest of the driveline was beefed up to cope with the extra strain last time from the old built engine and it seemed to cope okay, one thing it destroyed the diff-bolt as it moves both up and down and side to side and there is pretty much nothing you can do about it, well, until now. it has now coped a solid mount to stop the torque spreading it in several pieces. the tail shaft connection is now also a solid billet item. fingers crossed!!