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Triple G Lawn and Snow
08-15-2010, 04:11 PM
I just looked at a 03 2500HD. the guy said it has the 4:10 gears in it. Is this the Eaton locking rear end? G80 I think its called?

Bigred350
08-15-2010, 04:40 PM
yes it sure is. Just to make sure you can look in the glove box and you should see the g80 code.

-Dalton-
08-16-2010, 03:19 AM
yes, the infamous g80. known for blowing holes in gm diffs. you should be fine with the 14 bolt rear end on the 3/4 ton. most people that have trouble are those with 10 bolts (half ton rear end) and bigger, heavier tires.