Dana 70 or 80

[smoken02]

I think the stock rearend in my truck is the 70. It has the 3:55 gears. Is it worth building this rearend or would it be better to find an 80? Im planning on pulling in a 3.0 charger class.

 

[BluegrassDiesel]

You should have the Dana70 in yours. I think all 3/4 ton autos had them. Dont waste your time trying to build the 70. They just wont take the abuse. Definitely start looking for a Dana80 to swap in.

 

[zstroken]

80, you will need a good locker or spool, and some good axles.

 

[extreme diesel]

depending on what 3.0 class you are planning on running with you would be money ahead to put in a rockwell. to be competitive you will have to make enough power a dana 80 will not hold up. Black crow is a good example he had the power to be very competitive but broke the rear end alot. If you do want to go with a dana 80 I have 3 for sale one is built w/37spline axles and a spool.

 

[DieselDiva]

I wouldn't waste my time with a 70. The time and money you will stick into it just aren't worth it.

We also have a fully built 80 for sale. All the info on it is here.

 

[smoken02]

Well that answers that question. Thanks guys and gals. How about the front end?

 

[zstroken]

Put in an ARB and you should be good. The 00+ have the 32 spline axles and they hold up pretty well.

 

[smoken02]

ARB? is that the air locker

 

[zstroken]

Yes. If it is a puller only you can see if you have the CAD(central axle disconnect) and if you do you could weld the spider gears on the front end.

FYI manifold is enroute.

 

[extreme diesel]

If you want to go to 35 spline 1 piece front axles a detriot locker works very well

 

[smoken02]

Im not real wild about welding on hardend gears. You cant run a regular locker in the front?

 

[zstroken]

It works, I don't do it, but it works. I run an ARB.

 

[extreme diesel]

Nice thing about a detroit locker is that it is one less thing to have go wrong. (forget the switch,air pump malfunction, ect.)

 

[sauer implement]

I run a powertrax in my front and love it with the one piece front axle

 

[ramtough01]

dodges with autos came with dana 70 and manual came with dana 80s and i need to find me an dana 80 broke my 70 other the weekend

 

[JFlagg]

Anyone with an 80 for sale have a passenger side brakeline they want to sell? For a disc brake 80 that is....

 

[countryboy5.9]

i broke my 70 on my second pull snapped the pinoin gear.im running a 10.25 sterling still looking for a CHEAP 80. the sterling has held up to 6 pulls knock on wood.