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Old 05-10-2013, 07:29 AM   #1
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Changing to u-bolt yokes...

I'm changing both yokes in the rear D44 and front high pinion D30 (axle swap from an XJ) to u-bolt style yokes and replacing the leaking pinion seals. I've read other threads til I'm sore in the eyes, but it seems they both use shims instead of crush sleeves to set pinion preload.

So can I just zip off the old yokes and torque the new yokes with new nuts to 160-200 ft lbs, or do I need to mess with all the before and after pinion preload measuring?

And they both appear to use the same yoke. Do they both use the same pinion seals too?

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Old 05-10-2013, 09:30 AM   #2
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I would not bother, the u-bolts do nothing useful strength-wise while making it much easier to crush/damage the u-joint bearing caps by overtightening the nuts. I ran u-bolts for a while years ago but since went back to straps which are more than strong enough. I do some fairly tough trails & never worry about breaking them... and that's even running oversize 1350 size u-joints in the rear.

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Old 05-10-2013, 10:00 AM   #3
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Just remove, replace what you want, and torque back down.
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Old 05-10-2013, 10:02 AM   #4
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Jerry, I need to replace the pinion seals anyway, so can you confirm my question about pinion preload.

Im changing the rear yoke from 1330 to 1310 and already have the yokes in hand.
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Old 05-10-2013, 10:09 AM   #5
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The front crush sleeve has already been set, just torque the pinion nuts to 165-180 ft-lbs. & they will be fine.

I strongly recommend against u-bolts there. Or at least be careful to not overtighten the nuts even slightly. It is just too easy to overtighten them which can easily ruin the u-joint. Not even the winner of the last two year's EMC at the King of the Hammers was running u-bolts there.
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Old 05-10-2013, 11:37 AM   #6
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No crush sleeve in hp30. I beleive you are thinking of a lp30.
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Old 05-10-2013, 12:51 PM   #7
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I forgot you said you have a HP D30 in your first post.

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