Transmission crossmember bolt sizes?
The later crossmembers had a funky 3/8 bolt with a tapered 1/2 shoulder under the head. 3/8-16 x 3 3/8 long. Bolt head tapers to .490 just under the head.
The later crossmembers had a funky 3/8 bolt with a tapered 1/2 shoulder under the head. 3/8-16 x 3 3/8 long. Bolt head tapers to .490 just under the head.