Dana 80 Vs. Corp 14 Bolt

[KEENO]

I've heard both sides of the Stories... ... ... . Which Axle is stronger?



Dana 80 vs. Corp. 14 Bolt



If you were building a Cummins powered Kaiser/Jeep M715/M725... . which axle and why would you want out back?



Looking for a bit of factual data mixed in w/ some spirited opinion.



Any thoughts or proof?



TIA... ... . KEENO

 

[Got Smoke?]

Dave Mitchell runs a Dana 80 right? :-laf

 

[HillCountrykid]

The only advantage that the 14 bolt has that I know of is that it has 3 bearings on the pinion shaft. The axle shafts are the same dia. and I think that the stock spine count is the same. One big difference is that the 80's ring gear is 1" larger @ 11. 5". But parts for the 14 bolt are cheaper and easier to find. It's kind of a toss up. Either ought to work fine.



Brian

 

[RonaldLarson]

Dana

Given the propensity of Dana axles to have constant pinion bearing failures, I'd go three bearing pinion for sure. More axial support, less pinion flex.

Ron

 

[Billy Diesel]

I'd go with the 14-bolt due to availability, price, and a Detroit is cheap for it.



But if I had a Dana 80 w/ disk brakes sitting in the back shed, I would hesitate to use it.

 

[therabbittree]

dana 110 from f 450 and 550 hehe with disk brakes yessir!

later deo

\x/ hillfolk!

 

[fj40charles]

14 bolt for sure. I don't think the smaller ring gear is a limiting factor. Extra pinion bearing and cheap detroit locker is well worth it. Also, 14 bolts are dime a dozen.

 

[F8LDOSE]

I took out the Dana80 in my 95 and put in a 14 bolt. Will it hold? I sure as hell hope. Trucks not running yet. I put in aftermarket axles, detroit, and 3. 73's. Main reason i did it was to shed weight, at least 200 pounds.

 

[Billy Diesel]

F8LDOSE,



That has to be the first time I have ever heard of anyone throwing in a 14-bolt to "save weight"!!!

 

[mschoenheider]

From what I have heard, the third pinion bearing on the 14 bolt was a band aid fix for a poor original design with 2 pinion bearings being too close together. That being said, I do like the idea of the third bearing. The 14 bolt is also much easier to setup gears in than the Dana 80. The Dana 80 is however a stronger axle plain and simple. Beefier housing, larger carrier, larger ring gear, and I think the shafts are also larger diameter, a true 1. 50" vs the 14 bolt's neck down to 1. 367". The 14 bolt is a great axle, just not quite as strong as an 80.

 

[F8LDOSE]

Aftermarket axles are also a true 1. 5in. .