Dana 44 & Dana 60 - Axle Anatomy

This photo shows the corresponding size increase from a 30-spline shaft (bottom) to a 35-spline shaft (top).

This photo shows the corresponding size increase from a 30-spline shaft (bottom) to a 35-s

What you get with the Mopar JK-to-TJ next-generation Dana 44 is a much stronger 44 than what originally came on the TJ. The Mopar 44 offers lower weight than a 60 and bigger discs than a stock TJ Dana 44. Other benefits are 32-spline shafts and a very palatable price point of just $3,995.

Ring and pinions, from left to right: Dana 44 (8.5 inches), next-generation Dana 44 (8.8 inches), Dana 60 (9.75 inches).

Ring and pinions, from left to right: Dana 44 (8.5 inches), next-generation Dana 44 (8.8 i

With 35-spline shafts, a bigger ring and pinion, and a stronger housing and tubes, the ProRock 60 would most likely be more axle than this TJ would ever need, giving the owner some reserve strength for those hardcore outings. The ProRock 60 also offers more ground clearance than a Dana 44 and adds some bragging rights on the trail. Depending on the locker, the ProRock 60 would come in around $5,600 to $5,900.

Both have their benefits, but it all comes down to what you can afford, and there is no wrong answer here. This TJ owner, with no more than a 4.0:1 transfer case and a stock engine, would probably have no issues with the Mopar 44. However, if there were plans to do deeper transfer-case gearing or an engine swap down the line, there is no question we'd save up a little longer and go with the ProRock 60.