I have a 1999 TJ 4.0 that I’ve owned for 4 years. I recently broke the drivers side axle. Once I removed the axle I noticed it was a Yukon. Would anyone recommend going back with a Yukon axle or stock? Currently the Jeep has 33 x 12.50 tires, no trail, mud riding just a daily driver
Yukon axle versus stock
- Thread starter Deloachb
- Start date
Let me guess, it broke at the outboard end of the splines, right where the diameter changes.
Multitude of possible reasons that one failed. 27 spline shafts, even the stronger 1541 ones are susceptible to breaking. This is always a factor on larger than stock tires with a heavy throttle foot.
You can replace it with the link below, but know it can happen again. Upgrading to a 30 spline Super35 or Dana 44 rear is the fix.
https://www.amazon.com/dp/B001G98I9O/?tag=wranglerorg-20
Multitude of possible reasons that one failed. 27 spline shafts, even the stronger 1541 ones are susceptible to breaking. This is always a factor on larger than stock tires with a heavy throttle foot.
You can replace it with the link below, but know it can happen again. Upgrading to a 30 spline Super35 or Dana 44 rear is the fix.
https://www.amazon.com/dp/B001G98I9O/?tag=wranglerorg-20
Exactly right, broke with a heavy throttle reaching my son to drive a stick. Thanks for your recommendation
If you are looking for an OEM replacement there isn't much difference between brands, especially if imported, because most of the imported axle shafts come from the same foundries in India.
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“We” assumed, then described a typical 35 shaft failure that was then confirmed by the OP. There by confirming “our” assumption.
Until we have, we don't know that he can upgrade to chromolly shafts which are not an upgrade in the 35.
Point of order.
44 shafts don't significantly change diameter at the outboard end of the splines. As described to the OP.
and, going by the odds, he has a 35 with 3.07’s
LONGJP2
TJ Expert
The outer axle plastic shield is not needed.
Even worse would be to add an actual seal.
So if the new inner axle is not built up enough on the joint end to support the slinger just leave the slinger off?
LONGJP2
TJ Expert
I don't think it matters how it fits on the shaft.
It's mostly for keeping larger debris and/or splash out of the tube.
IIRC, most leave them off when upgrading axle shafts because it's too small.
Has anyone tried adapting the slinger to the reduced diameter axle? The slinger will snap snuggly on the threads of a gallon water jug. I am going to cut one off to try the inside diameter on the axle.
LONGJP2
TJ Expert
What do you mean by 'reduced diameter' and 'inside diameter on the axle'?
The plastic 'shield' goes on the shaft near the axle tube opening.
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