: DIff questions


1980Jimmy
09-06-2008, 07:56 PM
I have a 1981 1 ton chevy dana 60 dana 70. Is the dana 70 a hd or not? Also what stock gears are in duallys?

JeffHPK5
09-06-2008, 08:10 PM
It will have HD cast into it .. jist like it has 70 cast into it.

Measure the tubes.. HD is 4"

big mudder
09-06-2008, 09:43 PM
It could have 3:73's to 4:56's

cj8scrambld
09-07-2008, 06:44 AM
It could have 3:73's to 4:56's

yep, and any other ratio that someone could have swapped in. pull the cover and take a look.