I'd use some tranny flush in the tranny before switching to a different fluid-
Bowtietim- I think the '83 manual might say gear lube, the manual I'd be interested to see is the '85 because the NHTSA recall was issued in '84 so it wouldn't make it into the owner's manuals til the new model year.
'51 Chevy 1/2 ton w/'62 261, HEI, offy, fentons, dual carter/webbers, t-5 & 12 bolt posi
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