It's a Race Car 9.80's Hemi Coronet. We really don't want to get into drilling the case for the bolt in. The guy doing our Transmission said the Sprag looked good, I just felt that while we have it apart we might as well put a new one in. If changing the Springs and Rollers will help than thats is an idea.

Thanks

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You just use the 4 existing holes for the rear support (changing the bolts long enough for the sprag and not bother drilling the holes for the extra twp bolts.