do they make any heavy duty u-joints for my drive train! ive been going tru them once a year-and the other question is if the are bad whats going to happen if i push them two far. will i cause any more damage on other parts?

 

I'm all for spicer parts.

There are some heavier duty off road ones, or I imagine some 50 dollar ones you can buy as well, but get spicer greasables. I hate sealed u-joints, they are junk. I think I have one going out.

 

where can i get me some of those?

 

I am not 100% sure on that. I had a store that I had a drive shaft made at that had them. So I used them and some other spicer parts.

Spicer and Dana are the same company. So we all know Dana makes good stuff. =)

 

The greasable joints are the weakest. If you want strong, get non-greasable, everyone will tell you that.

Also, as soon as you strengthen the weakest link, you'll find the next week link. Could be the part the joint goes in, could be the pinion, could be the driveshaft (I've twisted my oem shaft.)

I'd say you're getting poor quality joints. Just get Precision or Spicer and you should be fine, unless you drive the truck through deep water and or very dusty/dirty conditions all the time.

 

what makes non-greasable stronger?

 

The non serviceable u-joints are great for strength. But I prefer a u-joint that I can lubricate. If you not a service freak like me. Go with the non serviceable.

 

i like the precision heavy duty ones the best

 

The non-greasable joints do not have a hole drilled through the cross as a path for the grease to get to the needle bearings. The smaller the hole the stronger the joint. No hole = strongest

If you really want a bullet-proof u-joint get them from CTM.
These u-joints will require machining of the yoke ears of stock shafts to allow the snap-rings to fit....then the yoke becomes the weak point IMO.
Pictures stolen from pirate 4x4 website.
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what does CMT stand for and where can i find them?

 

Look here:
http://www.ctmracing.com/

Over $300 each OMG!

 

i know what CTM stands for now COST TO MUCH!

 

LOL! That's the truth.
If you are into offroading or sled pulling ect they might be worth it. Totally rebuildable and guaranteed

 

Good discussion. If it was me I would go with Spicer. You can get them from drivetrainspecialists.com and elsewhere. Make sure any slip joints are well greased and free.

 

So what is the part # ujoint we need for our drivelines anyway?