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Dieselburb86 · 03-09-2012, 12:15 AM

When I had my dad's 86, it was a half ton! The burb was a 6.2 J code, with 3.42 gears and a 700r4. Being that yours is a 3/4 ton, they just might be 3.73s.

03-09-2012, 12:15 AM	#6
Dieselburb86 Registered User Join Date: Sep 2011 Location: MAPLEWOOD Posts: 58	Re: My Possible Project (1990 Suburban) When I had my dad's 86, it was a half ton! The burb was a 6.2 J code, with 3.42 gears and a 700r4. Being that yours is a 3/4 ton, they just might be 3.73s.