Thats it.. Time for an upgrade. What to get?

[blazeonchevy]

So My driveshaft falls out from under my truck for a second time. The first time the ubolts that hold the ujoint to the transfercase backed out and a cap slipped out and there you go, the shaft fell out too.
This time was a touch worse. It started rattling then vibrating and before I could pull off the road (traffic) BOOM.

Both caps were still in place at the case. one of them was torn open, but the pics came out blurry. I will post the best one if I need to. And it took a nice chunk out of the yoke.

So this needs to stop. This is ridiculous. What are some options for a driveshaft at this angle? Right now I am not opposed to much other than something expensive. I want to do it right, but it doesnt have to be overkill. you know?
Btw, this is the rear shaft, both times this has happened while cruising down the road at over 50mph. So it has been fun. and the specs are in my sig.
Thanks guys. Im just frustrated with this right now.

 

[JEBSR]

If that's #2 then I would start looking at your drive shaft angles as being the possible culprit. If the angles are your problem then you might as well go to a CV style shaft and reposition the rear end to get the angles corrected. Not cheap but it's the correct way to do it when you only want to do it once.

 

[lochenjons]

Shims or reweld perches for the angle

 

[blazeonchevy]

The perches are already re-welded for the proper angle. Forgot to mention that.

 

[JEBSR]

proper angle for CV shaft or regular shaft?

 

[blazeonchevy]

Well I think for a regular shaft.
from what I could read is that for a cv shaft the pinion should not be pointing directly at the output but a few degrees down.
and that for a regular shaft it should be close to directly pointing at the output. Please correct me if I am wrong about this. I by no means learned enough about it before i did it.

 

[blazeonchevy]

if you couldnt tell

 

[YZEATER]

for a cv shaft- slightly down from pointing directly at the output.

for a 2 u-joint shaft. it should match the rear output angle. so they are parallel, and still a degree or down from that, so when your on the gas it will line up.

 

[JEBSR]

What he said. The problem may be that even if your angles are correct, once you have that much lift the overall angle of the shaft is just too much. This is what I ran into when I put the bigger lift on my rig. That's why I said if you want to do it and forget it just put a cv shaft on it and you won't have to worry about it anymore.

 

[YZEATER]

i would make a shaft with bigger u-joints and make sure the angles are correct. how far, time wise was the breakage ? weeks, months.

 

[blazeonchevy]

The first time (where the ubolts loosened up) was after about 1 1/2-2 months. Then It broke after about 3 weeks to a month. So far Im agreeing that a cv shaft with bigger joints would be the way to go. But how do I go about this? What changes to the output of my 203 would need to be done?

 

[JEBSR]

Best thing to do in my opinion is to call High Angle Driveline and talk to Jesse. He can give you the best info and tell you what measurements he needs in order to make one for you.

http://www.highangledriveline.com/