A friend of mine suggested something to me for my soup since I'm going to be dealing with a lot of hp. He said to call ACT, tell them I'm building a 7mgte motor(same clutch for the 5mxxx, IIRC), give them the hp/torque #'s that I'm expecting, and they should be able to calculate what I'll need to handle the power, as well as give me the p/n of the proper clutch. From that point, I'd be able to go with almost any company for an ACT clutch, or by using the numbers of clamping force and # of pucks, as well as material they use (think they'll tell you all that, or find out the specs by the clutch's p/n), and match up something with other companies you'd rather have.
As for the Centerforce Stage II, I have one in my truck and love it! It was slipping about a year ago though, definitely from the rear main seal leaking! Kinda wierd lately, I haven't had any slippage from it in about 6 months and I still haven't replaced that damned rear main seal! 4X4 trannys are frickin' heavy as hell, and just thinking about pulling it again makes me tired!!!
Good luck!
As for the Centerforce Stage II, I have one in my truck and love it! It was slipping about a year ago though, definitely from the rear main seal leaking! Kinda wierd lately, I haven't had any slippage from it in about 6 months and I still haven't replaced that damned rear main seal! 4X4 trannys are frickin' heavy as hell, and just thinking about pulling it again makes me tired!!!
Good luck!