Originally Posted by Mossy
Originally Posted by thin_man
There are over 1.5 million Duramax equipped vehicles out there, but just because they have DMax, doesn't mean they have a G80 differential. Like most things, they are an option.
Point taken though on the sheer number of them out there across several vehicles lines.


The G80 is standard on Dmax trucks. If you buy a Dmax,you get a G80 in the diff.


It's supposedly an option but they're on (most) every Dmax so in effect they're standard. Maybe they've become standard now? A friend's '01 actually came with an open diff. It was also built 13yrs ago, now it's a 9 second race truck.