NP205 Yoke broke

[ChrisPerry]

I just realized your driveshafts U-joints are out of phase. They are 90 deg out. That can cause them to bind and break.

And to answer the the question about axle wrap any good anti-wrap/traction bar should cure it. I'm kinda partial to the DIY4X Wraptor, but that's because I'm using one and I know it works.

 

[ChrisPerry]

If your up for some serious reading, click this, everything you ever wanted to know about driveshafts.

http://www.pirate4x4.com/tech/billavista/PR-shaft/index.html

 

[sweetk30]

yep drive shaft joints need to be inline. this will blow apart a system real quickly.

also WAY to tight with 2 wrenches .

get solid non greaseable joints like spicers there stronger.

also pinion pointed stright at case now = bad. axle wrap under load will point it past the t-case and bind up. and also thats only for c/v head shafts. yours needs to have angles matched.

and stock from factory the driveshaft was installed with the slip end up at the t-case unless it had a c/v head so your install is correct if doing the same as the factory did.

 

[K5Cobb]

I just realized your driveshafts U-joints are out of phase. They are 90 deg out. That can cause them to bind and break.

And to answer the the question about axle wrap any good anti-wrap/traction bar should cure it. I'm kinda partial to the DIY4X Wraptor, but that's because I'm using one and I know it works.

So, your saying that the ears on the yoke need to be the same direction?

yep drive shaft joints need to be inline. this will blow apart a system real quickly.

also WAY to tight with 2 wrenches .

get solid non greaseable joints like spicers there stronger.

also pinion pointed stright at case now = bad. axle wrap under load will point it past the t-case and bind up. and also thats only for c/v head shafts. yours needs to have angles matched.

and stock from factory the driveshaft was installed with the slip end up at the t-case unless it had a c/v head so your install is correct if doing the same as the factory did.

ok thanks, I have been thinking on how to change the pinion angle, and my thoughts are on milling about a 5º off the blocks to make it angle down.

 

[ChrisPerry]

So, your saying that the ears on the yoke need to be the same direction?

yes, all you need to do is pull the slip apart and turn it.

Should look like this

 

[K5Cobb]

Ok, tonight I corrected the shaft, and noticed that the rubber in my t-case mount was broken up and old. So I put a jack under it and the mount that keeps the t-case from torquing up was completely gone and letting it torque up on one side. So I figure b/t the shaft out of time, the mounts and axle wrap, I have a found what could be my problem. now all I have to do is address the pinion angle.