i'm switching a 3 speed out for a 4 speed in my el camino, and the bolts for the trans mount won't fit in my new trans. the bolt hole is just bigger than a 3/8, but a 10mm course won't fit either. any ideas?
so after trying a bazzillion bolts that i had in the backyard, i realized the threads in the trans were flattened. i'm guessing whoever had it before me put a 3/8 bolt in and it bounced around and destroyed them. so i threw a 10 x 1.5 (i should have just done it to begin with) and it is working fine. i was this || close to drilling it and tapping a 7/16.