So for arguments sake,is there any proof to back that up,once I weld it up that's it,we'll some adjustability in the long arms but this is a dd so I don't want any drive line vibrations when I hit the highway.
Pretty much no one on here with bigger lifts runs one. Go look at the angles when everything is installed.
I've never run one on any ZJ from stock all the way to 6" of lift (and every height in between). My buddy on 6" of lift doesn't have one, nor does the one with 5" of lift. Longer wheel base and the need for the longer rear driveshaft keeps the angles in check, you'll have enough adjustability with the control arms in the rear.
I don't doubt whiteout either. I'm just curious cuz I'm at about 4.5" lift and I needed the sye. I couldn't get the vibes to go away even after having my ds redone. And I know I'm not the only one. But whiteout is correct that some don't need the sye at high lifts. Just remember every jeep is different. I'm working on an 8.8 as well setting it with an artec truss.
If you are running the stock ds the output angle needs to match the input.
Just curious whiteout, how long is your driveshaft center of ujoint to center of u joint?
I'll grab you a measurement tonight. It's the stock shaft that came in a '98 5.2 Laredo. It's interesting that you needed one. I'd say it has to do with the fact you have the 231 and I still have a 249, but JohnnyZJ on here is at about the same height as you with a 231 and does not have one.
You're 100% correct about each Jeep being different. Bizarre how it happens that you can life two Jeeps the same amount and one will have issues and one won't.
Originally Posted by Kreeper
Well whiteout,I've been on here long enough to know you give solid advise,my only question would be at 5.5-6 lift and a stock shaft should my pinion still be parallel to the yoke on the tc or?
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I'll have to look at mine; I basically just set mine, drove it and then adjusted until I had the axle where I wanted and no vibes. The 12* angle for that truss is what most of the people who have done it set it up as I believe.
I missed this, my bad. Im using my stock DS (97 5.2). The pinion is a bit longer on that 8.8 and I did a 242 Tcase swap. Between those two things, I got lucky and was able to use my stock ds. Just got new U's for it.
I just added an 8.8 to my ZJ with a 5.5" lift. I used my stock shaft with 2" added by a reputable local shop. I did not use an SYE and I did use the instruction on Tom Wood's site to set pinion angle. I daily drive mine and would all day long. It rides very nice.
93 red ZJ 190k 4.0. Spent more money than I should have ...
Isn't red the only color a vehicle should be?
If at first you don't succeed, use more speed.
I had to cut down an XJ driveshaft. Can't remember I pulled it out of my pile of driveshafts. The artec thing should come with instructions right? I would burn it in to their specs then adjust arms to maximize angle. I think it's 11 degrees but I can't totally remember because I have adjustable arms that will easily make up a few degrees one way or the other. Honestly just call ironrockoffroad offroad and ask em or artec lol. I remember the IRO instructions had the number there listed for 5" lift.
But for driveshafts it depends on your wheelbase. I extended mine and had to cut down a longer ds to work. Might have been due to the 231. Not sure. Only vibe I have is at 120km/hr and its marginal: probably due to my home built driveshaft.