D44 driveshaft Ujoint

wannabe · Sep 17, 2004

So i swapped a XJ44 in my 99 with the 29 spline 8.25 and everything went well except the ujoint on the driveshaft seems slightly too small on the pinion side. Do I need a diff. ujoint, I read quite a bit about the swap before I did it but dont remember anyone having this issue?
Thankx

Yucca-Man · Sep 17, 2004

Hmmmm....shouldn't be any difference if you're still using stock u-joints. Make sure the cap didn't come off and drop a roller bearing across the end, that will make it too wide to fit.

wannabe · Sep 17, 2004

Yucca-Man said:
Hmmmm....shouldn't be any difference if you're still using stock u-joints. Make sure the cap didn't come off and drop a roller bearing across the end, that will make it too wide to fit.

I am using the stock ujoint. I see what your saying but the problem I having is that the cap itself is too small in circumference. Its not much but I can see between the cap and the strap for the cap.

Wayne Sihler · Sep 17, 2004

wannabe said:
I am using the stock ujoint. I see what your saying but the problem I having is that the cap itself is too small in circumference. Its not much but I can see between the cap and the strap for the cap.

You can replace those straps for around $6.00.Try that first,I did the same swap (many have) no problem with the U-joint being too small.
Wayne

wannabe · Sep 17, 2004

I can try that but I wouldnt think that is the issue. My original 8.25 only has 30K on it and it was a corporate lease vehicle so it was prob. never wheeled or really abused. We'll see. Any other ideas or are they for sure the same Ujoint.

BUCKYXJ · Sep 18, 2004

for sure the same joint
should be a 1310 if I recall correctly.

old_man · Sep 18, 2004

There are different yokes available that bolt up to the D44. Sounds like you may have gotten a 1350 yoke instead of a 1310 yoke.

Garthbmn7 · Sep 18, 2004

I am getting ready to do the same swap in my 98. Did you find any difference in the length of the diffs? Did you need to get a longer driveshaft?
Thanks
Garth

wannabe · Sep 18, 2004

old_man said:
There are different yokes available that bolt up to the D44. Sounds like you may have gotten a 1350 yoke instead of a 1310 yoke.[/QUOTE

Im still learning this stuff but is there a way to tell what yoke is on there. Do yokes come in a master install kit or R&P sets? I ask cause the one that went in with the axle was in bad shape compared to the one that I got back. Do you know what the size dif. is between the two yokes, were only talk 1/16th or so, just enough to see thru.

wannabe · Sep 18, 2004

Garthbmn7 said:
I am getting ready to do the same swap in my 98. Did you find any difference in the length of the diffs? Did you need to get a longer driveshaft?
Thanks
Garth

If there is it isnt anything to worry about, I can measure tomorrow.

junkxj · Sep 18, 2004

old_man said:
There are different yokes available that bolt up to the D44. Sounds like you may have gotten a 1350 yoke instead of a 1310 yoke.

I did not know that the d44 ever came with a 1350 yoke. I doubt this came out of a jeep? What kind of truck did the d44 come with a 1350 yoke? Sorry to ask, just very curious because I have never heard of this. THanks!

XJack · Sep 18, 2004

Garthbmn7 said:
I am getting ready to do the same swap in my 98. Did you find any difference in the length of the diffs? Did you need to get a longer driveshaft?
Thanks
Garth

The diff length isn't much different - D44 is a smidge longer - If it's too short for your taste, then it's nothing a lift shackle won't cure.

RCP Phx · Sep 18, 2004

IT might be a bad yoke,the 1350 joint is also a 1/2" wider than a 1310!

wannabe · Sep 18, 2004

Once again I appreciate everyones ideas. I think I will replace the straps and see how that goes.

jrsxj98 · Sep 19, 2004

quote

o yokes come in a master install kit or R&P sets? I ask cause the one that went in with the axle was in bad shape compared to the one that I got back

Did they switch yokes and give you the 1350?

Yucca-Man · Sep 19, 2004

All this talk about 1310 vs 1350 yokes is irrelevant and leading us off-topic.

Does the u-joint seat fully in the yoke? I'd say it's the right yoke then, but to verify there should be a part number in the casing, just as there is in the front yoke. The straps don't touch 'round the entirety of the u-joint cap anyway, they'll only hold the top of the cap in position.

D44 driveshaft Ujoint

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