Quote:
Originally Posted by CheapJeep
what is it you're trying to do with this?
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Quote:
Originally Posted by CheapJeep
what is it you're trying to do with this?
Space the drag link from the leaf spring. I'll either use a spacer/shim on the flat top or a spacer between the arm and the drag link. Because once I shim the front axle upward the drag link will probably hit the leaf's.
ah, a spacer. partsmikeparts.com
Thanks John. :gigem:
Rotate the knuckles.
That won't fix the problem. The whole axle needs to be rotated upward due to the pinion pointing towards the ground because of my reverse shackle setup in the front.Quote:
Originally Posted by JeepPhisherman
Yes but his pinion is also in desperate need of rotation. His steering castor is majorly fawked. Went for a test drive the other day and almost died when the steering started vibrating HARD and causing the jeep to swerve all over the road.
Yes it will that's why hes doing it but when he puts the shims in his draglink will probably hit the passenger side spring so he nees a spacer for the highsteer arm.
if its a chevy axle the pinion should be pretty much level and then caster should be good. i know what you are saying about the RS screwing it up. so it has a cast in perch on the pumpkin?
It's a dodge 44. But just as you said John, it does have a perch cast into the pumpkin so you can't cut and rotate the perches.Quote:
Originally Posted by agjohn02
I'm running heims so I can shim the drag link like I said before if I don't end up getting a spacer for the arm.
looks to me like you just need a longer front driveshaft
I don't think the pinion pointing too far down should give you death wobble, I think that problem is coming from somewhere else
pinion won't but if you get the ball joints at a funky caster it makes the steering fubaredQuote:
Originally Posted by uglyota
that's what I mean, if it's a stock axle, doesn't a pinion pointing down (and thus rotating the caster back) make the steering tend to center, whereas shimming it to point the pinion up makes it tend away from center (ie Deathwobble)? I can't remember which is positive and which is negative.
Maybe from the pics it's hard to tell, but the pinion is definitely pointing down and you can see how the steering is angled upward. I did do a little testing yesterday driving around, and the wobble really only happens when I mash the throttle then immediately let off, which is why I said I need to make traction bars. I can watch the rear axle torque when I do this which I think is sending into the wobble. Either way, I'm shimming the axle to help out that pinion angle because it's hideous and is wearing out my u-joints prematurely.
I still think you should cut and turn the knucles even if you use shims to move the pinion, it will make the jeep alot more driveable and steer alot better
you should have 4-6 degrees of ?positive? caster. the kingpin angle should lean back 4-6 degrees. i know what forward leaning caster will do. i drove with it for two years. it sucks. the only thing i know too much caster will do is feather the edges of your tires more. it may cause other problems though. i could definately see it cause death wobble. i would shim it to the correct caster. forget about pinion angle for now. put an angle finder on a flat surface, like a steering arm to measure the caster. compare this value to the angle of the ground you are sitting on to get actual caster. see how the pinion looks with caster corrected and then decide if you want to hassle with a cut n turn. my bet is you dont need to do it. those axles should have caster built into them, unlike pre '80 scout axles.
oh yeah, forward leaning caster make tires wear very very well and not make any noise.
what about steering, too much and the tires are trying to pick up the vehicle when you turn the wheel
The whole f'in axle is rotated incorrectly. Its not just castor, and not just the pinion angle, its both. When he puts the shims in, they will fix both problems, without any of this cut and turning knuckles crap. I think we are really overengineering the solution here.
Quote:
Originally Posted by afroman006
... and by "we" you mean creighton?
edit: oh yeah, and the mochachino stallion.
ok, so I haven't looked at it, I don't even **** w/ leaf springs, All I have to do to set pinion angle or caster is make some arms longer, and whalla it changes
Finally, somebody actually listened.....Quote:
Originally Posted by afroman006
Ok I reviewed the pictures, I just felt like giving advice for something I hadn't even really looked at
i had to use spacers and bend the arms a little because of the RS.
http://tamor.org/forums/attachment.p...tid=5093&stc=1
WTF?Quote:
Originally Posted by CheapJeep
Quote:
Originally Posted by ME
I know, that comment wasn't directed towards you at all. :gigem:Quote:
Originally Posted by agjohn02
Do what you want, but I'm pretty sure you're both mistaken. By shimming the axle to rotate your pinion, you are also tipping your caster forward, which is going to make the axle tend to steer towards the sides of the road, whereas in the stock condition the axle tends to the center. Shimming for pinion angle will exacerbate the Death Wobble
http://en.wikipedia.org/wiki/Caster_angle
oh snap, look who invented it!Quote:
Originally Posted by uglyota
to bad he was french... although he has to be of german decent with the krebs last nameQuote:
Originally Posted by wikipedia
oh yeah I was gonna mention that...a hard-on for obscure concepts is definitely in your blood :D
As long as your shimming it back to stock location, it shouldn't matter. I have huge shims on the front but it just made it back to stock angle. I didn't "raise" my pinion. It needed the huge shim because of the home grown reverse outboarded shackle setup with Cruiser leafs and a 1-ton axle.
Quote:
Originally Posted by davido
I am pretty sure this is what a few people are missing. If I am wrong, please correct me, but I believe that once the pinion angle is back to normal, the caster will be too. Unless this has been modified before (kingpins cut off and rotated) the axle will be right again. Did someone say "overengineered" earlier, thats what aggies do right. :flipoff2:
but he says he already has death wobble
could the death wobble be attributed to the caster being to far back (top of kingpin being to far to the rear of vehicle). I would think that DW would start once it was too far either way. I say shim it, them fix the caster as needed, cause the pinion is definitely to low.
I don't know, I wouldn't think that would happen until the caster was past like 45* though
Dammit Eric you're busting my balls here. The entire axle is rotated too far down and the pinion angle is pointed towards the ground. I dont know if when we experience was tecnically "death wobble" but I do know the entire jeep was shaking violently and started swerving all over the road.
SHIMS WILL FIX BOTH PROBLEMS.
well then put some shims in and see if it needs a steering arm spacer, if it does put a couple washers under the draglink heim and go see if it's fixed
how long are the front shackles? Shorter shackles will help that pinion angle too
You got it correctly. I don't know how many times I tried to explain it, I even included pictures, but the shims will fix both.Quote:
Originally Posted by DRAGOONRANCH
Oh well. :gigem:
Quote:
Originally Posted by uglyota
i cant figure out if you are retarded or just have so much hemp stashed in your bunghole that its restricting blood flow to your brain. :flipoff2:
everything I've said in this thread is correct and makes sense in the context of the information given. what's retarded is thinking that tipping your pinion up will improve deathwobble, and wanting to put a spacer under your hy-steer arm when a misalignment washer will do the job :flipoff2: