I think if you parked a AD truck for 500 years this would be the last part left.
A buddy came over the shop yesterday and saw all the parts of my SM420 spread out on the work bench. He could not get over the size of the main shaft on these transmissions. I explained to him the same tranny was in everything from a 1/2 ton to a 2 ton truck. You dont find any over engineered parts in today's vehicles.
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Last edited by sstock; 02/16/2018 10:13 PM.
1953 Chevrolet 3100
261 cu inch, sm420, 3.55 rear, torque tube still,omaha orange, still 6 volt, RPO green glass, side carrier spare, all done
In the DITY Gallery
Video of the 261 running

1964 GMC 1000
305 Big Block V6, sm420, the next cab off restoration