Is dodge and ford dana 70 the same?

[BushWakr - RIP]

Guys, I'm wondering if the Dana 70 LSD is the same for both Dodge and Ford? Same splines/Pinion etc, etc???

If so, what year(s) would be compatible??



Bob.

 

[Prairie Dog]

Some of the bearing related components are different, not sure about the rest of it.

 

[Speedo]

Dana 70s

There are at least 4 different models of the Dana 70 and Ford has

used all of them. There are at least 3 different spline counts used

between the 4 different models of Dana 70s. The good news is

that there are some common parts between all of them but you

really need to know what you are after before you start to swap

parts around.

There is a standard 70 which uses a . 500 offset pinion and as far

as I know they haven't been manufactured for quite awhile. The

next one is the 70B which is probably the most common now and

it is pretty much the same as the standard 70 but it uses a . 625

offset pinion. Then there is the 70U it uses the same gearsets as

the 70B but it uses a smaller outer pinion bearing than the 70B

so if you see a listing for ring and pinion kits, wich include the

bearings they will be different. The last one that I'm aware of is

the 70HD. This uses the same gear sets as the 70B and the 70U

but ups the size of the differential bearings. If you can find the

Bill of Material number on the right hand axle tube or on the metal

strip attached to the cover you can get all of the information on

what is inside from that. Once you have the BM number you

should be able to take that to any Dana Spicer dealer and they

can give you all the information you need to start chasing parts.



Gus

 

[RBurleson]

Guys, I'm wondering if the Dana 70 LSD is the same for both Dodge and Ford? Same splines/Pinion etc, etc???

If so, what year(s) would be compatible??



It isn't an easy year-to-year equation... as detailed above, there are more than a few different 70 variants... the only way to map it is to look at the components, by Bill of Material (BOM) number. You can back this out of recent year trucks at the following website by application.

http://www2.dana.com/expert/



If you know the BOM, that is the absolute best way to be sure... look on the axle tube, in the same plane as the axle cover for an xxxxxx-x number stamped in (faintly).



Randii