[drshame]

Anyone have any experience changing front driveshafts in a WJ from a U-Joint/Rezeppa shaft to a double U?
The transfer case has a round flange which must be removed and replaced with a yoke...but what's the right one and does anything else internally in the TC need to be swapped?



I am trying to correct a minor front driveline vibration when I engage 4X4.

[drshame]

Not many replies here.
Must be the only one to have driveline issues on a lifted WJ.
When I get the answer, I'll share.
Or give up and just get a new Rubi!

[JeepNWilly]

Here is some info I found on Tom Woods website
http://www.4xshaft.c...kee_RezFix.html

[drshame]

Saw it a few weeks ago. Florida Drivetrain is suggesting their similar build. But I am hoping there's an easier/cheaper fix.
My initial lift went fine with no vibes.
It wasn't until the front diff was rebuilt that the vibes hit in 4X4 at start-up and low speeds...and go away as I get above 20 mph.
In 2WD, it's fine.

[JeepNWilly]

hmm vibes started after front diff was rebuilt. It could be an issue with the diff rather than the DShaft.

[drshame]

And the dealer is blaming my TC trying to sell me a rebuild.
Not sure who to trust.
What else is new!

[drshame]

Driveline shop found front rezeppa/cv dried out and flopping around...hopefully this is the problem causing my start up 4X4 low speed vibes.
Too bad the only recommended fix is swapping the flange/rezeppa for a 1310 yoke and building a new double cardan front drive shaft.
I'd suggest anyone thinking about even a minor 2" BB lift..be aware these older WJ's CV's driveshafts do not tolerate increased angles well..though I got 9 years and 144,000 miles out of the original before changing springs/shocks.

[XrayDivr]

my xj had that same type of shaft, i pulled a dbl cardon shaft and the yolk of a tj at a junkyard. swapped it out. runs great, the only thing was i had to cut the shaft shorter

[drshame]

You lucked out....Good for You!
I wonder if a TJ driveshaft works in a WJ.....how did you rebalance after cutting it?
Don't have a welding machine in my garage just yet...and how many miles were on the replacement shaft to double check it was still OK and wasn't on it's last legs???
My TC uses a 32 spline flange fitting...I alos need to find a 32 spline 1310/1330 Yoke...how'd you know what yoke fit or was it just luck?
I am learning these platforms don't always do well lifted and do NOT age well at all.

[XrayDivr]

it was mostly luck it fitting , and i just really inspected the u joints first, no play in them, worstcase whats a couple of u joints the shaft and yolk were the important parts. to cut it down, i ground down the weld all around the axle end until the pressed in end would come out of the tube. cut off the tube to the desired lenght. reinserted the end, layed the whole thing inside a big piece of angle iron to get it straight and tack welded it, installed it in the jeep, clamped a laser light on the frame and pointed it at a spot on the shaft. with the t-case in neutral, i spun the shaft and watched the laser to see if there was any wabble. then adjusted the straightness. welded it solid and that was that.

[drshame]

Finally got the new Spicer Double Cardan front Driveshaft built and installed.
The parts looked well made and nicely finished.

Vibes fixed.

Florida Powertrain and Hydraulics did a great job in Miami putting it all together and not throwing me out after the 500th dumb question.

So much for the original diagnosis of bad transfer case. I'd like to believe it was an honest mistake. But if I had spent Big $$$$ for a TC rebuild or replacement...I believe it still would NOT have fixed the vibes issue.
Working on these things is as much as an art, and a little voodoo with some science thrown in too.

[OIIIIO]

if you can whats the phone # to that shop and how much was it

[drshame]

Google is your friend.
I don't remember the phone but they do answer it...they are out off nw 72nd ave and 46 street by MIA.
Too much
But I got what I paid for and it's built like a tank compared to the OEM.

A replacement Transfer Case Yoke to be able to use the new shaft was about $65.00 and needed some machining which added to the cost.
I'll bet you can save money finding a junk yard replacement that may or may not work.
Their prices are a bit higher than internet "custom vendors" but they triple-measured mine, spent a while balancing and finishing it, walked the yoke to their machine shop to get bored out as needed for my TC, and it came out right the first time.

'Nuff said.