[Guest]

I am running a 5 inch SPOA, and a YJ spring conversion. On the rear, there is too much drivline U-joint angle and I get really bad vibration under load. I realize that I need a traction bar, though that wont fix the angles. The front has EXTREME U-joint angles. I would like to keep the factory castor angle, but I have the U-joint problem. The driveline also hits the crossmember, but I am going to just cut that down. Also, I have already shaved the U-joint on the front as far as possible, and it still binds!

HELP!!! What do you guys with your extreme angles do!!

Thanks for the help,
Stefan

 

[794]

On the rear after my YJ swap, I had a friend mill some 7 degree shims to get the angle back, then he built me a traction bar to hold everything in place. On the front I had your same problem before the YJs. Instead of cutting the crossmember and still having the bad u-joint angles I got a Trail Tough birfeild front shaft with a 2" extended slip yoke. The birfeild doesn't bind at extreme angles and the diameter of the shaft was half of a stocker(tube vs solid stock) which solved the crossmember problem. I don't know if TT still makes the birfeild shaft but it wasn't a cheap fix the shaft and 2" slip yoke set me back $400.

 

[1339]

Do you have room to move the axles further out? this would ease the angles a bit.

For the rear rockrat has the toy DS adaptors and the toy is a cardan unit. you point the pinion at the
Xfer U joint and the double U joints take care of the angle and vibes.

On tthe front try reversing the driveshaft end for end. one end has more clearance for the crossmember.

 

[Guest]

So for those who dont have a birfeild from T.T., what do you do?

 

[841]

mine doesnt hit I have a stock front driveline sort of (1 inch spacer on t case and 2 inch extended slip yoke) the spacer helps with crossmember clearance the slip yoke makes it worse because it has a sleeve welded to it to extend the yoke making it even closer to the crossmember I dont hit but I come realy close I did add some washers underneath the long arm mounts to raise the t case slightly about 1/4 to 3/8 of an inch (on mine I could go as much as 3/4 of an inch)

 

[rockrat]

You can also get one of these to stop the crunch it is a completely new mount that we make and allows you to cut the stock one out. This is one mocked in our stocker..