I would venture a stab at the SM330...at least that is what 67-72 4x4's with a 3 on the tree used. I have heard about that combo in a 73-87 before, but I'd never seen it. One good thing is that the NP205 was the only transfer that came with one of these.
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1969 GMC K2500 
1996 Honda Accord
2007 Kawasaki KLR 650
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