Originally Posted by Bryan59EC
3.73 was real common for the 2wd trucks
I had 4.10 in my 78 k-10 pick-up
If you only get 10mpg at any given time-----4:10
if anything better than 12---3.73
There will be a code stamped on the rear end somewhere (I think right side top) that someone can probably decode for you.
Once I get the stamped code off the axel tube where can I check it at? This is how I used to ID old F-Body rears but couldn't find anything on trucks. Thanks.