The bolts have really worked well for me in the past as well. Did you put a new clutch disk in it this time? I will share a quick story, when putting the motor back my 1990 truck, the new toyota clutch disk which came with the alignment tool, was for a 2 wheel drive. The difference between a 2 and 4 wheel clutch is ONE spline, this was incorrectly packaged @ toyota and cost me a day of trying to get it together. Good Luck