What size bolts for trans crossmember on 79 TA with 400 4speed?
 

What size are the trans crossmember bolts for 79 TA with 400 4speed?

And what about the bolts for the center trans mount itself?

I cannot find any of these bolts for my car. Some help would be appreciated. Thanks!

Pretty sure the crossmembers are 3/8 coarse threads.

'79 might have metrics in the tranny mount though.

the bolts to the frame you can use what you find
mine are 3/8"-16 (length somewhere around 2" maybe pending washers/etc)
to the trans for the mount, i am not 100% sure, larger is all i know
and they are the same thread pitch for the energy suspension poly mount i am using too
my x-member is a 1 bolt style to the mount