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Funny my 4 speed 340 Duster never made a full pass with the 8.75. It was either swap to a Dana or an automatic, I chose the automatic. I have the aluminum center section in mine with a pro gear and have been good to this point but before with a street gear I would plan on a ring and pinion every 2 seasons or so.



I'm on my 5th year on my street gears... still perfect

To the OP... those load bolt just slightly load the
back of the caps (inside) so they are less likely to break




Yeah, your car is probably lighter than mine was but good luck to you.



His car is a heckuva lot faster than yours too !!! My 340 was a second and a half slower than your 340!!
I have had ONE 8 3/4 rear break after 25+ years of very abusive street racing with dozens and dozens of cars.
My Cuda was beaten severely for years and years with the same 4.56 8 3/4 rear. It also had the same A833 tranny. Never had problems with either.

CrAzYMoPaRGuY