Yes on 2" and I welded a flat on the bottom of the cuts that rest on the bottom frame rail.. I used block mount starter with a 153 flywheel lopping off a bolt mount on the cast iron truck bell housing. Bolts I used are 2" grade 8 with flat and lock washers.
An after market tubular or such will work but I like free or near free if I can. I used a trans crossmember from a 75 4wd, a 2wd square body will work maybe with modification. The one in your donor would be a start. Use all from donor you can.
I kept everything high so the 4+3 competition plus shifter would only require a small as hole in trans cover as I could.
If you are retaining your trans then a sbc cast iron bellhousing with side mounts might be used with mods unless you are using a 168 tooth flywheel for bell housing mount starter.
If you are going to use the 250 block mount starter then it would need to be a 153 tooth flywheel --use everything from your donor and determine from there. You can use a cast iron bell housing - bell housing starter mount --- with a 250 block mount starter 153 tooth flywheel if you lop off the remotess bolt hole on the bell housing. You may not need to consider this at all.
If your 82 and 59 are both sticks you may have all you need.
Last edited by 42465967; 12/22/201912:18 AM. Reason: words