TJ axle shafts in XJ D30

jeepster_259 said:

Will TJ d30 axle shafts fit into the xj d30 housing without any issues?

I have a 98 xj and I am installing an auburn ected locker, which came with the entire d30 axle assembly from an 06 tj. Since my unit bearings were questionable, I was going to just swap the axle shafts from the tj into my xj. I measured them and the shafts are the same length, but the tj unit bearing is 1/8" shorter. I've heard that if you use tj unit bearings you have to use tj rotors, which isn't a problem.

I just want to make sure there won't be any problems before I do this. The tj axle only has 20k miles on it versus my xj's 175k! I figure it will freshen things up a little bit.

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bdiamond said:

The locker itself will swap, but the gears are different.The rotors need to match the unit bearings, otherwise its all a bolt together deal.

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jeepster_259 said:

yeah I'm swapping on my ring gear as the tj was a 3.07 ratio and mine is 3.55.

Thanks for the input, I'm definitely putting in the tj axles then!

Another somewhat related question:
I've heard that welding the u-joint caps to the yoke on the front axle makes it stronger/less prone to breaks. Anybody have any input on whether this is a good idea? While I have the axle shafts out, now would be the time to weld them.

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