How do I tell if my Dana 80 is a 35 or 37 spline count? Is there any easy way to tell without taking it apart and counting it? If you have to take it apart whats the easiest way to do that? I am looking at aftermarket lockers and it says that the dana 80 could be either. Any help is appreciated!
-Alex

 

If your truck is factory you have 35 spline axles. Sam

 

Ok, so every 2500 ho 6-speed with the dana 80 will have 35 splines? I need to make sure because all the online places say it could either be 35 or 37?
Thanks
-Alex

 

oem dodge 35spline 100% positive

 

I believe only the Fords came with 37 spline setups. My truck is only 35 spline axles.

 

Great, Thanks guys, I was unsure because an online site I was looking on listed a 35 or 37 spline for the arb locker in the dodge section. I believe it also listed both a 35 or 37 for a ford.

 

What kind of Locker are you looking at? I have a stock open diff with 3.55 gears and my options for a good limited slip seem pretty marginal at best. I think I am going to get the Powertrax No Slip as the reviews seem pretty good and less issues then the Lock Right for on-road applications.

Powertrax No-Slip 92-0480-3500

Joe