user & abuser
Join Date: Feb 2006
Location: Vancouver, B.C. Canada
like stated above, the 915's are better then their rep.
its torque that kills them, and not in the lower gears... its 5th that cannot handle bags of torque, so avoid a truly high speed run.
i know the side plate flexes too much in the lower gears, and that can make it hand grenade, however if you add the powerhaus2 side plate that issue should be solved.
you don't need a new tranny, just gotta make sure yours is up to the task. Chris Streit should be able to tell you how to strengthen your 915....and any comments he makes will be on the safe side.
vini vidi vici