8.75 Sure Grip spider gears break
While racing my vintage road racer Dart last weekend I broke the spider gears of the Sure Grip clutch type diff carrier again. This is already second unit within one year that breaks the similar way. The rear end is 8.75, and the ratios that I've had are 3.91 and 3.55. Car has a 273 engine and A833 gearbox. It's difficult to imagine that there would be too much torque... :)
The first one that broke was a Chinese copy, but the second one was an original NOS unit from 60's. Any suggestions for a solution? Spool is not allowed...
While racing my vintage road racer Dart last weekend I broke the spider gears of the Sure Grip clutch type diff carrier again. This is already second unit within one year that breaks the similar way. The rear end is 8.75, and the ratios that I've had are 3.91 and 3.55. Car has a 273 engine and A833 gearbox. It's difficult to imagine that there would be too much torque... :)
The first one that broke was a Chinese copy, but the second one was an original NOS unit from 60's. Any suggestions for a solution? Spool is not allowed...
