View Full Version : Rear Axle: Type - relation - 2R5 truck series

The Gravedigger
07-21-2012, 12:28 PM
Good afternoon gentlemen,

As you know I'm doing some restoration on a 2R5 1952.

I was looking forward changing the rear axle and differential due to the new engine, a Ford Cologne.

But I've got some information that the rear axle would be a Dana 44, what might make it easier to get some parts or maybe upgrade this differential.

Some pic's:


Can you give me some information abou it? 'Cause if I can get this azle upgraded, I won't change it, what saves me some money for other jobs.

Thank you so much gentlemen!


07-21-2012, 02:17 PM
The Dana 44 is the most common, most widely used rear axle ever made. It was used in Studebaker, Dodge, Ford, Chevrolet, Jeep, International, as well as myriad industrial applications. You shouldn't have any problem finding parts and a shop which can do for you. Look on the bottom of the cast center section. If yours is a Dana 44, you'll find the number 44 cast into it.

jack vines

The Gravedigger
07-22-2012, 02:57 PM
Hey Packard!

I'll try to double check this ASAP. But I really do think this rear axle is Dana 44.

One more question, in case it is confirmed to be a Dana 44, am I able to upgrade this differential with a new relation? I mean, the end ratio is quite short and I wonder if ti can withstand the new engine as well.

Even if I had to change everything (ring, pinion, side gears and spider gears, please correct me if the terms are incorrect) I think it'll be easier for me to keep the STD axle.

Thank you!


07-22-2012, 03:19 PM
I'd rebuild the 44, if that is what you have. You need to know that ratios higher (in number) than 3.92 take one carrier and those below 3.92 take a different carrier. It's a carrier thickness issue so you will need to contact someone familiar with this issue to order your gears. So if your change is across the 3.92 division it increases the degree of difficulty. I'm sure you can find someone in Brazil that will know the best way to go. The 4X4 offroad guys are very familiar with these changes.

It may only require a ring and pinion change and new bearings. In the US a ring and pinion is about $150 and the bearing set $125 for inner, outer and pinion bearings.

Much easier than a complete rear end change.

Good luck, Bob