During the last month or so, we have been working on an OME lift spring install on my friend's '86 CJ7.
Springs are "heavy duty" Wrangler rear springs, used front & rear on the CJ.
We have made new shackle hangers, new shackles etc., etc ... (you get the idea..)
Anyway, last night we took it out for the first real drive, and suprise, we had some vibrations ...
I crawled under the Jeep, and took a good grip on the rear shaft.
The rear pinion is moving up/down & side-to-side and the U-joint is shot.
Here is the ?
To change the Pinion bearing(s), is it "only" necessary to remove nut & seal,
withdraw the pinion axle (taking *real* care of the shims), replace the bearing(s), put the shims on the pinion in correct order, new seal & torque the old nut to correct torque ......
Or is it neccessary to do a set-up of the gears, measuring deepth, backload, gear patterns etc., etc ....
The pinion is not leaking any oil (yet), but the trash-lock is shot.
Also, the driveshaft has a rather step angle (it's an 258", auto and D300)
If the vibrations doesn't go away with new bearings / U-joints, we'll probably drop the transfer 1", and see if that helps.
Oh, yes, the lift itself turned out rather good, we got about 3" (un-loaded) in the rear, and about 2" up front.
We'll move the front hangers forward (now in stock position) and uses some slightly longer shackles (the shackles are tilting to much, reducing the lift), to level it out.
And the drive is very smooooth (compared to mye 4" Pro-Comp lift...)
Any other info needed ??
PerJ (From Norway)
Using self-discipline, see http://www.eiffel.com/discipline