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post #1 of 15 Old 01-23-2009, 12:02 PM Thread Starter
firefighter315
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universal Universal Joint question likely universally asked....

I have searched this quite a bit and am getting conflicting information....

Does my 1994 Dana 35 require a u-joint that fits a 3.5 inch (Spicer 1310) yoke, or a 4 inch (Spicer 1330)???? Also, will my u-joint at the rear of the TC be the same size? To add to my confusion, which isn't difficult today, NAPA also lists a 3 7/8" joint for my '94.....

On a side note, I am planning on going with a greasable "super strength" u joint for the axle joints. Does anyone know if these are worth the extra expense? (really not THAT much more expensive....like 7 bones extra each)

Any input on this would be greatly appreciated. I plan to buy these after work today and get them all swapped out because I am pretty sure that I still have the original joints (except for the rear shaft/axle joint which has a zerk fitting) and I am pushing/turning 35s right now.....seems like an failure waiting to happen and I'd like to be changing them in my garage rather than on a trail in the dark.......

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post #2 of 15 Old 01-23-2009, 12:08 PM
dodger889
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35 on d30/d35 you live on the side of danger Huh? I would not worry about change u joints but changing axles would be more benefits.
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post #3 of 15 Old 01-23-2009, 12:10 PM
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1310 for the drive shafts. I would put spicers back in the axle shafts or even better upgrade to tj shafts if you can.

Your limited slip differential sucks.

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Originally Posted by Anticanman View Post
Any video of the sound?
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post #4 of 15 Old 01-23-2009, 12:25 PM Thread Starter
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Originally Posted by dodger889 View Post
35 on d30/d35 you live on the side of danger Huh? I would not worry about change u joints but changing axles would be more benefits.
Yeah, that's how I roll.... Nevermind.....this is the PO's setup and I am slowly upgrading/swapping here and there. An 8.8 is on the radar for this summer and I will likely keep the 30, but upgrade to super 30 shafts for now. That set up with the 8.8 will be fine for Kentucky off roading. At least until I get a wild hair and head to Harlan Co.

I wanted to swap these u joints for now because they have likely been spinning in the original grease from 14 years ago since they are all sealed, with the exception of the above mentioned rear joint. Seems like a long time to me when considering grease breakdown from heat, friction, etc......
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post #5 of 15 Old 01-23-2009, 12:29 PM
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Quote:
Originally Posted by firefighter315 View Post
I wanted to swap these u joints for now because they have likely been spinning in the original grease from 14 years ago since they are all sealed, with the exception of the above mentioned rear joint. Seems like a long time to me when considering grease breakdown from heat, friction, etc......
Those joints probably dont have a speck of grease left in them.

Your limited slip differential sucks.

Quote:
Originally Posted by Anticanman View Post
Any video of the sound?
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post #6 of 15 Old 01-23-2009, 12:30 PM Thread Starter
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So is the common "1310" response for the drive shafts a rock solid answer for a '94? I read a couple of places that mentioned that '94s and '95s were produced with 1330s on the rear shaft at the axle..... Sometimes mentioned that it may have been done that way as the beginnings of part switch overs for the pending TJ production.......
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post #7 of 15 Old 01-23-2009, 12:31 PM
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Quote:
Originally Posted by firefighter315 View Post
Yeah, that's how I roll.... Nevermind.....this is the PO's setup and I am slowly upgrading/swapping here and there. An 8.8 is on the radar for this summer and I will likely keep the 30, but upgrade to super 30 shafts for now. That set up with the 8.8 will be fine for Kentucky off roading. At least until I get a wild hair and head to Harlan Co.

I wanted to swap these u joints for now because they have likely been spinning in the original grease from 14 years ago since they are all sealed, with the exception of the above mentioned rear joint. Seems like a long time to me when considering grease breakdown from heat, friction, etc......
We'll get you to come down with us sooner or later lol

93 YJ - SOLD
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post #8 of 15 Old 01-23-2009, 12:42 PM Thread Starter
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Quote:
Originally Posted by MLJeeper View Post
Those joints probably dont have a speck of grease left in them.
My thoughts EXACTLY......hence (just for you Brandon ) my wanting to replace them before they DO fail.....

Quote:
Originally Posted by Brads_nky_yj View Post
We'll get you to come down with us sooner or later lol
Won't take much convincing once I get the majority of the weak points taken care of.......(see profile!)
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post #9 of 15 Old 01-23-2009, 12:46 PM
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Quote:
Originally Posted by firefighter315 View Post
So is the common "1310" response for the drive shafts a rock solid answer for a '94? I read a couple of places that mentioned that '94s and '95s were produced with 1330s on the rear shaft at the axle..... Sometimes mentioned that it may have been done that way as the beginnings of part switch overs for the pending TJ production.......
Best thing to do is measure the width of your existing u-joint from cap to cap, and also measure the cap diameter. Take these measurements to the parts store to make sure you get the right part.

I thought I had 1310 in the rear DS, but apparently I had something bigger, and it all looked stock.

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post #10 of 15 Old 01-23-2009, 12:47 PM
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FYI most 94,95 4.0L yjs have a 1330 ujoint at the axle end the joint measures 3 5/8" across the caps. Ive even seen them on a couple 95 4cyls too.
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post #11 of 15 Old 01-23-2009, 12:50 PM
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Ive yet to come across one with a 1330 joint, Always wondered about the 2 part numbers.

Your limited slip differential sucks.

Quote:
Originally Posted by Anticanman View Post
Any video of the sound?
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post #12 of 15 Old 01-23-2009, 12:56 PM Thread Starter
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I agree Sebastian, and will probably end up doing that today rather than rushing to buy and swap these....no real rush, just something I want to get done and it gives me another excuse to hang out under the Heep...

So it may be that the information I got regarding the 1330s on '94s and '95 may have been for the 4.0 only, and not my 2.5 LO......I didn't find any specification related to engine size when they said that 94s and 95s were given the 1330s in the rear at the factory. (that will result in some jokes....)
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post #13 of 15 Old 01-23-2009, 12:58 PM
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I ran into this problem when I did my SYE / CV shaft and 8.8 swap. Drove to my buddy's house, and put on the SYE and Tom Wood's shaft (With 1310 u-joints). We did the SYE and shaft, and then it got late so we decided to do the 8.8 the next day. I went to connect the CV shaft to my Dana 35 so I could drive home, and it did NOT fit. The u-joints on my new drive shaft were too small for the D-35 yoke. I had to hitch a ride home and then back the next day to finish up.

95 Black YJ
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post #14 of 15 Old 01-23-2009, 01:00 PM Thread Starter
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Quote:
Originally Posted by MLJeeper View Post
Ive yet to come across one with a 1330 joint, Always wondered about the 2 part numbers.
I filtered my NAPA search with '94 Wrangler AND 2.5 L and still got three different options for the rear DS to axle joint....a 3.5", 4.0", and even a 3 7/8".....I think I will probably save a trip or two by just measuring it myself before buying......guess my Fri. night project will have to be a Sat. morning project.......
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post #15 of 15 Old 01-23-2009, 01:04 PM Thread Starter
firefighter315
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Quote:
Originally Posted by sebastian22 View Post
I ran into this problem when I did my SYE / CV shaft and 8.8 swap. Drove to my buddy's house, and put on the SYE and Tom Wood's shaft (With 1310 u-joints). We did the SYE and shaft, and then it got late so we decided to do the 8.8 the next day. I went to connect the CV shaft to my Dana 35 so I could drive home, and it did NOT fit. The u-joints on my new drive shaft were too small for the D-35 yoke. I had to hitch a ride home and then back the next day to finish up.
Sounds like one of my typical projects.......NOTHING ever goes through without a hitch......or like we say in Kentucky, ..."a hitch in it's giddyup...."
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