In the past 8,000 miles i have been through 2 driveshafts (stupid CV joint). since i don't really want to keep replacing them and i also don't want to buy the $400 superlift d-shaft, i am going to build my own. i haven't decided if it is going to be a double cardan style or just a single u joint on each side of the shaft. i will also be attempting to fab a drive shaft disconnect into the shaft instead of trying to put in manual hubs. the disconnect will probably be closer to the front of the d-shaft so that the shaft wont move when unlocked. i have all of the parts needed for the disconnect and two stock shafts laying around. it might be a slow process but it is going to happen. here are some pics:






i will try to keep taking pics throughout.

 

Pretty sweet plan you got there. I would definitely go for a double cardon on the transfer case end of the shaft.

 

yeah, my dad's idea. you really think i'll need the double cardan, even though it will only turn if i have the shaft locked in?

 

Yes, because generally the u-joint angles AREN'T equal on the front the way the are in the rear. Without a double-cardan you'll have different velocities trying to happen at each end during the rotation and that'll be a strain on something -- it's not just the "vibration" issue.

When the angles of the two joints aren't the same that's when you need a double-cardan.

 

Yup thats right. If you take a close look at the t-case you'll notice it actually points up a little bit. The angle will be too steep if you don't use the double cardan. If you're gonna make a custom shaft anyways don't risk not using the double cardan.

 

ok, thanks for the info.