About 25 runs or so on ours also. The band takes a beating when it shifts early due to tire spin. Car is heavy and runs 7.80's. Dirties the fluid fairly quick. I R&R the tranny after about 100 runs. If we had it to do over again, we would have used the steel A&A drum instead of their aluminum one. Their ultra sprag and lightened sun shell is a must. We have billet shafts, straight cut 2.10 planets and all the other stuff. When we run 8.50's, we broke a regular bolt in sprag and it was a mess. The ultra sprag and light sun shell for us was a must.