Double Cardin joint

VA_Wagon Man · Post by **VA_Wagon Man** » Fri Dec 28, 2012 8:14 am

I guess I'll start a discussion on replacing my double cardan joint. I don't know how, but I'm gonna learn. I had a squeaking the other week like a u joint. I narrowed it down to the double cardan. I greased it and it took it away.

Last night, i was coming up my drive and it was grinding and clicking. Do i need to replace the entire thing, our is it as simple as replacing a u joint?

Thanks guys.

Sent from the middle of nowhere.

Dawizman · Post by **Dawizman** » Fri Dec 28, 2012 8:33 am

It's definitely able to be rebuilt. Idid the one on my 04 2500. Instead of writing out instructions, Judd check out this forum post, it's pretty detailed:

http://mallcrawlin.com/forum/showthread ... an-Rebuild

VA_Wagon Man · Post by **VA_Wagon Man** » Fri Dec 28, 2012 8:45 am

Thanks.

Also, what exactly are we grading when we grease the double cardan? Is it one if the u joints, or something else. If it were the u joints, i would think there would be two places to grease, and there isn't......

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verdesardog · Post by **verdesardog** » Fri Dec 28, 2012 9:41 am

the only thing you are greasing is the centering pin... the two ujoints are factory lifetime lube with no zerks to grease them....to rebuild the double joint you need two ujoints and a centering pin kit.

VA_Wagon Man · Post by **VA_Wagon Man** » Fri Dec 28, 2012 10:05 am

verdesardog wrote:the only thing you are greasing is the centering pin... the two ujoints are factory lifetime lube with no zerks to grease them....to rebuild the double joint you need two ujoints and a centering pin kit.

Thanks deserdog.

Sent from the middle of nowhere.

VA_Wagon Man · Post by **VA_Wagon Man** » Fri Dec 28, 2012 11:05 am

Dodge told me they don't sell a rebuild kit for center pin:evil:
They'll sell me the u joints at $109 a piece or the whole driveshaft for $569:shock:
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RustyPW · Post by **RustyPW** » Fri Dec 28, 2012 11:47 am

You have a driveshaft shop by you. I would let them do it. It would be quicker and easier. Sometimes getting the old u-joints out can be a bit!@h!!!!

TwinStick · Post by **TwinStick** » Fri Dec 28, 2012 11:55 am

$39 each on RockAuto.com. There are 2 types:w/inside lock rings & w/outside lock rings. The u-joints are extra of course.

http://www.quad4x4.com/qu10977.html

http://www.automotivepartsunlimited.com ... shaft.html

VA_Wagon Man · Post by **VA_Wagon Man** » Fri Dec 28, 2012 8:21 pm

The drive shaft is at the repair shop. I'll have more details on Tuesday our Wednesday. Like Russ said, let them bust their knuckles doing it. Plus, a death in the family makes it tough to find time to work on it.

Sent from the middle of nowhere.

TwinStick · Post by **TwinStick** » Fri Dec 28, 2012 8:23 pm

I would do that also. I was just giving suggestions.

VA_Wagon Man · Post by **VA_Wagon Man** » Fri Dec 28, 2012 8:26 pm

TwinStick wrote:I would do that also. I was just giving suggestions.

Yeah, thanks for the links Twin. I have done u joints before, just to cold and no time right now. I did edumacate myself on cardan joints though.....

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neotech · Post by **neotech** » Sat Dec 29, 2012 11:44 am

I am about to do this same rebuild on my truck Picked up Spicer U Joints from George at 8 Lug Diesel and a center section from napa if I need it. Now its just a matter of doing it. Today or tomorrow I'll take pics as I do it. It's been as cold as -40 at times here so I am not excited about it. Supposed to be -15 today so I will be taking it out and bringing my bench vise into the house to do it. Thanks for the link for the write up though. Helps me

MSparks909 · Post by **MSparks909** » Sat Dec 29, 2012 1:35 pm

My driveshaft is also squeaking...I've been meaning to rebuild it for a while now. I'm gonna pull it this weekend and try to drop it off at a driveshaft shop. Problem is there's none close by to me.

TwinStick · Post by **TwinStick** » Sun Dec 30, 2012 9:46 pm

I take mine off the night before, put it in vehicle, then drive an hour to d-shaft shop & drop it off, go have a nice relaxing breakfast somewhere, read the paper, go pick it up & go home & put it back on.

Bring some cardboard to put it on as most shops paint them too.

VA_Wagon Man · Post by **VA_Wagon Man** » Wed Jan 02, 2013 12:39 pm

Just checked on the driveshaft. It won't be done till tomorrow because of holidays. He said $75 for a complete rebuild. The NEW double cardan joint doesn't have a grease fitting.....so we'll see how long it lasts.

Sent from the middle of nowhere.

TwinStick · Post by **TwinStick** » Thu Jan 03, 2013 11:29 am

Maybe they dont know about it either. It may not have a "grease fitting or zerk fitting" but it may have the same push fitting as the factory ones ???

I cant see it lasting long at all if it dont.

pzoeller · Post by **pzoeller** » Thu Jan 03, 2013 12:46 pm

Mine was replaced by the previous owner with a non-greaseable one. Dont know a brand but its been there for 60000 kms now with no issues.....

VA_Wagon Man · Post by **VA_Wagon Man** » Thu Jan 03, 2013 1:12 pm

That's good to hear. I can only hope for best.
Both u joints and new center is only running $75, so i won't complain......

Sent from the middle of nowhere.

VA_Wagon Man · Post by **VA_Wagon Man** » Thu Jan 03, 2013 6:01 pm

The drive shaft is back in. Took it for a test ride and all seems well.

There isn't a grease fitting or dimple for the cardan joint but both u joint s are greasable Spicers. They did better than me or dodge.......with their $500 shaft.

Sent from the middle of nowhere.

RustyPW · Post by **RustyPW** » Thu Jan 03, 2013 8:23 pm

Good to hear that everything went well.

fbenross · Post by **fbenross** » Thu Jan 03, 2013 8:48 pm

VA_Wagon Man wrote:The drive shaft is back in. Took it for a test ride and all seems well.

There isn't a grease fitting or dimple for the cardan joint but both u joint s are greasable Spicers. They did better than me or dodge.......with their $500 shaft.

Sent from the middle of nowhere.

Did you grease yours regularly ? Did you take it off when you greased it ? Drive in deep water alot ?

VA_Wagon Man · Post by **VA_Wagon Man** » Thu Jan 03, 2013 9:54 pm

I greased it every 10k or so but never took it off to do it......it was actually getting difficult to get it to take any grease. Yes, i frequent water crossings, usually dirty ones. My truck also has almost 151,000 miles on it.

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bstefanic · Post by **bstefanic** » Tue Mar 05, 2013 4:05 pm

Would having a worn double cardin joint cause the vibration/grinding noise I'm hearing at speed with no throttle applied? I'm starting with all the small things before I take the big step of rebuilding my transfer case. I can't accept that at only 48,000 miles my transfer case bearings would already be shot. I've greased mine about every 10k but the truck sits for long periods and its pretty dry here in the desert so I can see how that could mean it hasn't been greased enough.

bstefanic · Post by **bstefanic** » Tue Mar 05, 2013 4:09 pm

Driving with the front drive shaft off wouldn't cause any problems...right? Figure that would be the easiest way to single out the problem, take it off and drive around if the noise is still there...its the transfer case.

VA_Wagon Man · Post by **VA_Wagon Man** » Tue Mar 05, 2013 9:59 pm

That is correct, it won't cause any problems. Take it out and see if that fixesthe vibration for you. As far as my research, a cardan joint in need of replacement would cause a lot of vibration and some clicking or other squeaks. I'd definitely try taking it out to see if that takes the vibration away.

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