Rubicon

[Starrs]

https://louisville.craigslist.org/cto/d/2004-jeep-rubicon/6363879720.html

 

[Chris]

Wow, that’s got some money into it. I don’t care for the wheels though.

 

[billiebob]

Sort of forgot, "build it to do something" unless the something is parking at the mall.

 

[Mike_H]

37's on stock 27 spline Dana 44 axles...hmmmm....mall crawler

 

[glwood]

Good luck getting $33.5k...

 

[billiebob]

not much room to flex or sidehill. kinda pretty but the under carriage photos show off where it gets driven.

 

[StG58]

That's the cleanest underside I think I've ever seen on a TJ.

 

[Bird]

Extremely sharp TJ....like it.

 

[mrblaine]

37's on stock 27 spline Dana 44 axles...hmmmm....mall crawler

Are you talking about the stub shafts in the unitbearings?

 

[Mike_H]

Are you talking about the stub shafts in the unitbearings?

Yeah...the front axle in particular. At least that is what I've heard. It's a Dana 44, but the outer knuckles and stubs are the same as a Dana 30. Correct or not?

 

[mrblaine]

Yeah...the front axle in particular. At least that is what I've heard. It's a Dana 44, but the outer knuckles and stubs are the same as a Dana 30. Correct or not?

They are the same as a Dana 30, 27 spline but the size and spline count has about zero to do with it. Due the fact that the stub shaft is essentially a big bolt, when you torque the nut down to the high torque spec required to hold the unit bearing halves together, the splined section of the shaft winds up in tension. That puts the flange at the beginning of the splines in contact with the rear face of the unit bearing and the forces that it takes to turn the tire assembly wind up being handled by the high level of friction generated between the two surfaces so essentially the splines see very small forces.

Were that not the case, you would see trails littered with piles of broken stub shafts and not only does that not happen, it is rare to even ever see or hear of a broken stub beyond the yokes at the splined area. There were a few breaks in some crap aftermarket stuff which overlooked basic engineering principles like heat treat and material selection, but that's about it.

 

[Mike_H]

They are the same as a Dana 30, 27 spline but the size and spline count has about zero to do with it. Due the fact that the stub shaft is essentially a big bolt, when you torque the nut down to the high torque spec required to hold the unit bearing halves together, the splined section of the shaft winds up in tension. That puts the flange at the beginning of the splines in contact with the rear face of the unit bearing and the forces that it takes to turn the tire assembly wind up being handled by the high level of friction generated between the two surfaces so essentially the splines see very small forces.

Were that not the case, you would see trails littered with piles of broken stub shafts and not only does that not happen, it is rare to even ever see or hear of a broken stub beyond the yokes at the splined area. There were a few breaks in some crap aftermarket stuff which overlooked basic engineering principles like heat treat and material selection, but that's about it.

Thanks for the knowledge...are you saying that the stock axles are up to 37 inch tires, or am I reading too much into that.

 

[mrblaine]

Thanks for the knowledge...are you saying that the stock axles are up to 37 inch tires, or am I reading too much into that.

I didn't say that at all but the stub shaft isn't why.