Hello bolters,
Some sage advice from Gord&Fran I had a fat finger typo on the casting it was 3835253. Thank you. The stamped one tho I had right, pics attached: thanks for the input everyone. Hoping you can deduce from there.
Attachments
20220904_152326.jpg (111.99 KB, 101 downloads)
20220904_151656.jpg (158.79 KB, 101 downloads)

Al
1947 GMC model FC102 original drivetrain 216 eng sm420 4 speed.