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Dodge Dana 60 and GM Dana 60 Front Axle Gear Swap

Techline: Did You Know the Dodge and GM Ring-and-Pinions are Interchangeable?

Can I use the ring-and-pinion from a Chevy Dana 60 in a Dodge Dana 60? They are both front axles. The Chevy Dana 60 is from an '89 GM truck and it has 4.10:1 ratio gears in it. The Dodge Dana 60 is from a '92 diesel truck with 3.55:1 ratio gears. I plan to put an '06 GM 14-bolt rear axle in the back of my Dodge truck with 4.10:1 ratio gears.—@waynbaird, via Instagram @cappaworks

Are Dodge Dana 60 and Chevy Dana 60 Ring-and-Pinion Interchangeable?

Absolutely! The GM Dana 60 parts you have and the Dodge Dana 60 parts you have are interchangeable. Since you are sticking with 4.10:1 ratio gears, there isn't even a carrier split to worry about. The 3.55:1 ratio gears and 4.10:1 ratio gears ride on the same carrier. The Dana 60 carrier split is at 4.56:1-and-up ratio gears.

Check Gear Pattern and Backlash

Ideally, you should take a gear pattern and backlash reading of the GM axle before tearing it apart. If it's all in spec, you should match that gear mesh pattern and backlash reading once the GM Dana 60 gears are installed in the Dodge Dana 60 axle. You can move the GM carrier over to the Dodge axle as well, but you'll want to carefully inspect the carrier bearings for wear and replace them if need be.

Make Sure Pinion Bearing Isn't Worn-Out

The pinion bearing should also be inspected and replaced if there is excessive wear. For the best results, you should replace all of the bearings during the gear swap, but at the very least you should seriously consider swapping out the pinion bearings. They are more prone to wear and damage during removal and installation than carrier bearings. A bearing puller will be needed to perform this task.

It's Not a Direct Bolt-In Installation

Don't be fooled into thinking this is an inexpensive and easy gear swap. A gear swap like this generally won't be a direct bolt-in; you'll likely need to adjust the shims to get the correct gear pattern and backlash. Because the gears are used, it may take even more time to get the proper setup.