Not nesessarily a Jeep but, what differential is this? ~pic heavy~

[Turbogus]

Greetings from Oregon, the shower me state. My best friend has an old late30's early 40's truck with this differential. It may have been swapped in at some point but none of our resources show this particular diff.










If you know what this is please let us know.
Thanks and a lift of the lynch lid

Gus & Lee

 

[Rubiconrich]

could be a ford 9"

 

[xjmarc]

That my friend looks like an Eaton. Would it by chance be a full float axle? Chevy used them for a while as did IH both in tons. They are stronger than a D60 and about the same as a 14 bolt.

 

[Turbogus]

Thanks Rich and Marc.
All my friend can tell me is that it's a six lug, he's not had it apart as it's on a future project. It disconnected from the driveline so but it rolls easy I don't know if it's worth saving (seizure, broken teeth, etc) but he can't find it on any of his resources.

 

[jps4jeep]

Thats an eaton axle, you can tell by the bolt on diff cover and drop out third member. with out knowing the gearing or WMS-WMS, I am guessing Eaton HO7.

as mentioned, used in chevy's, this was the predicessor to the D60 and 14 bolt in the 1 ton trucks; the front, a closed knuckle axle, was discontinued in 72/73 in favor of the D44, the rear was still used until I think 76 in both SRW and DRW applications.

 

[jps4jeep]

too add, the eaton axles are a huge hidden gem in teh offroad world, they share a lot of common parts with the 14 bolt, the axle splines are miserable, I think 12 or 19 spline shafts, but the 14 bolt, 30 spline carrier is a direct swap using the HO7's bearings and shims.

 

[Turbogus]

Right on, thanks jps! I've never seen cover bolts on the rear and front of a differential before, is this charactheristic of the Eaton axles?

 

[jps4jeep]

yes and no, there were lots of older axles that were built in similar fashion. mogg portal axles are bult in a similar way but 90*out, old ford quick change rears and most GM torque-tube rears also were very similar to eatons.

If you can score that axle cheap, do it. I know people running 44" tires on eaton axles with nothing more than a welded 14 carrier and shafts. Pure BEEF

 

[xjmarc]

IH used the 6 lug versions in ton trucks. Buddy has one he's restoring that is a dually, mid 60s I think, and like jps4jeep said they are an excellent axle. The 6 lug pattern is a bit of an odd one but wheels can be found.

 

[jps4jeep]

is it the large 6 lug pattern? rockwell wheels might fit if it is. I am not overly familiar with IH version of this axle.

 

[Turbogus]

This thing's on wheels and tires so no wheel search is nessesary. Just axle info was what my friend's looking for. Thanks so much for sharing insights and knowledge jps and marc!

 

[xjmarc]

It's what the forum is for. With the 14b upgrades mentioned above I wouldn't think twice about running 44s on one.