Thanks for all the replies!!
Okay... I counted the teeth and there are 10 on the pinion gear and 39 on the ring gear... so that divided would be 3.9, so that means the ratio is 3.9:1? Or am I way off?
The reason I asked at all though was because with this rearend under a 1961 Chevy 1/2-ton with a 235/3-on-the-tree, the truck used to be able to go like 70 miles an hour up hill with ease and then would still be able to "push" the driver to the back of his seat. So I was wondering if these might not be stock gears, or could those trucks just do that?
