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Well, mine broke after I put taller gears in the rearend. I had gone from 4.10 to 3.55 gears with a 474 CI R3W9 Motor. The taller the rear gears the more stress on the trans. I ended up going back to 3.91 gears after that. The trans did not seem to be as happy on the upshifts either.



Also with the taller gear, you lost power/torque and there's more wheel speed coming out of the burnout box and more of a wheel speed RPM drop if the tires grabbed and yanked it down.....

I can't imagine putting a steady load of your HP times the low gear ratio would twist that in half.....It had to be "snapped" really quickly.....