One things you may want to look at also if you are going from a 6cyl to an 8cyl is the radiator. The necks for the hoses are sometimes on the opposite sides. Also a 8 cyl capasity is larger .
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37 chevy 1/2 ton


37 Chevy 1/2 Ton
86 Chevy Blazer
98 Drudge 24 valve Cummins
One worn out Timberjack