Rotten teeth
So it isn't a sm420 but the earlier 31-48 predecessor.
Normally I would buff up the gears and carry on ,but the rust ate 3 teeth off third and the rest don't look much better.
If I was to run this pitted up gear set it would be so loud in the cab you'd need good ear plugs .
Anthony
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1954 GMC 211 , Restored
1941 F8, Restored
1942 F15A , needs box and restore
1944 C15A , needs box and restore
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