James Dean

It doesn't do much good to lengthen the links to a new location if you are using the stock spring configuration. It can only flex so much, so there is no reason to create more articulation than the spring would allow. Creating new mounts further away would only be beneficial if if you were going to use a dual action coil-over or an offroad type spring.

abecedarian

probably did. and my geometry isn't quite as good as it used to be either.

>edited out irrelevant babble<

muddpigg

iTrader: (1)

If not mistaken the factory set up is 3 link, how does this compare to a 4 link(meaning articulation)? and is the 4 link streetible to run on a DD? I'm pretty sure I don't want to know the price range of the springs you pictured

Thanks in advance.

FredTJ

You're mistaken
The factory setup is actually a 5 link with regards to the axle connection points.

- Two upper control arms.
- Two lower control arms.
- Track bar (aka panhard par).

Jeeps (TJ's) are the same.
I did a 3~4 link (and some other "fancy" stuff with the lower arms) and was fine as a DD.




Fred

mikhail

well i took off the rear driveshaft, drove at about 50mph, the vibes are gone. only problem is the t-case output is loose and leaking tranny fluid.

does the transmission and t-case share fluid or is it seperate? its an a340-h.

im gonna get a cv off of a stock front drive shaft and take it to a shop and have them put it on the rear and balance it, hope that fixes the problem. also gonna have to fix the t-case output.

abecedarian

I, meaning me, wouldn't do that.
Normal u-joints go through acceleration and deceleration while spinning at an angle. On a typical driveshavft, the joints at the ends are installed in such a way that as one of the joints is accelerating, the other is decelerating thus keeping a consistant rotational speed at the input to the axle. Installing a CV (constant velocity- note the name?) on only one end will result in the accel/decel of the u-joint on the other end not being cancelled and consequently a 'surging' of the rear wheels while you're moving / in gear.

FredTJ

The loose ouput flange on the xfer case is, more than likely, the problem.
Fix that and then re-install the driveshaft.
Yes, the fluid in the xfer case is shared with the tranny.




Fred

FredTJ

Actually it's not a problem and it's a specific cure for vibrations case by the u-joints being used beyond their specified working angles, caused by lifting the vehicle.
With a CV joint on the xfer case of the driveshaft and a normal u-joint on the axle end, the rear diff pinion will need to be adjusted such that the u-joint angle is straight and all of the angle is born by the cv joint.



Fred

mikhail

i looked through the FSM i downloaded, and cant seem to find how to take apart the t-case. The actual nut holding on the output flange is loose, but cant spin because of a little indent thats pressed into the side. I dont think it couldve come loose over time, its probably from the driveshaft vibrating, thats made it worse.

and running a cv in the rear driveshaft has been done many times, but i did notice the 'surging' you mentioned when i was driving around in front wheel drive.

okie81

Check for dings or missing weights on the driveshaft, you may just simply need to balance it.

muddpigg

iTrader: (1)

Just be prepared that after you tighten the flange, check and repkace the t-case out put bearing as it could be prematurely worn from DS vibes. Specially if you have slop and the nut is still staked.

That you'll need to still check DS angles. If you need to go with a CV shaft you'll have to adjust the pinion so it points at T-case.

mikhail

i checked the seal behind the flange, it was fine so i just tightened the nut. Theres no slop in the flange now either. The vibes are alot better, but there is still a little so i think ill get a cv joint put on the drive shaft and adjust the pinion angle.