This weekend I did the rear SOA. I’ve noticed that from 5-25mph I have a bad vibe, after 25 it goes away. The rear DL still has some slip left, but not much. The pinion is a tad above level, and I’m not running a CV. Previous to this I was running a 4-inch SUA, now running about 6-7 inches with the SOA.
Found this http://4crawler.cruiserpages.com/4x4/CheapTricks/Driveline-101.shtml#Measurements might be I need a little more up angle. Any ideas, am I on the right track?

Thanks Joe

Joe- I would suggest running a CV at the t/c end of the shaft and point the pinion straight at the t/c. Bye bye vibration. That's what I did on my EB and it works great :D

AXLE BEARINGS

Originally posted by SMART ASS
AXLE BEARINGS

What makes you say that?

Originally posted by Rubicrawler
Joe- I would suggest running a CV at the t/c end of the shaft and point the pinion straight at the t/c. Bye bye vibration. That's what I did on my EB and it works great :D

Money and time. I've got more the enough room to not need the CV. I need to get the front setup finished first.

My bud had a dead bearing in his rear toyo, sounded like shit at low speeds.

Just recently my dana 30 front, craped a bearing, and grumbles at low speeds... I have yet to fix it

notice any axle grease leaks?

Originally posted by jdjanda


Money and time. I've got more the enough room to not need the CV. I need to get the front setup finished first.

You may have enough room but getting the angles right will be a problem. I wonder what would happen if you stayed with the std shaft and pointed the pinion at the t/c?

Man- you need Webdaddy to call your number this month for one of Jess's shafts!

Originally posted by SMART ASS
My bud had a dead bearing in his rear toyo, sounded like shit at low speeds.

Just recently my dana 30 front, craped a bearing, and grumbles at low speeds... I have yet to fix it

notice any axle grease leaks?

No noise, the bearings are freshly packed and turn freely with no rough spots. I had the axles out during the SOA and all looked well. I might have new bearings installed on my spare shafts and try that if the angle is ok.

Thanks Joe

Originally posted by Rubicrawler


You may have enough room but getting the angles right will be a problem. I wonder what would happen if you stayed with the std shaft and pointed the pinion at the t/c?

I'd say the angles are harder to setup on the CV, but that's just me. As far as pointing the dif without the CV, I'd say I might have a little more vibe the I do now :D


Originally posted by Rubicrawler

Man- you need Webdaddy to call your number this month for one of Jess's shafts!

Ditto, keep'n the fingers crossed. Even if I don't win new shafts are in my future. Once I do the manual swap and new springs settle I'll order a set.

Joe

Originally posted by jdjanda


I'd say the angles are harder to setup on the CV, but that's just me. As far as pointing the dif without the CV, I'd say I might have a little more vibe the I do now :D

I know I have less WB than you do but when I set up my D60 I was instructed to simple point the pinion at the t/c. No angles to worry about. 5 years so far so good :D

CV shaft, point pinion up...

Sure, it is *possible* to get the angles perfect and avoid vibration without a CV .... but unless you are lucky, it will take some work.

In the real world, a CV is a lot easier, and tilting up the pinion lifts that U-joint out of the rocks. The CV is a lot more tolerant of slight misalignment -- like what you get from axle wrap, spring sag, etc.

Spend the money on a CV setup, then set it and forget it.

Randii