The CheapJeep

Quote:

---

Originally Posted by CheapJeep

Finally, somebody actually listened.....

---

WTF?

Quote:

---

Originally Posted by ME

... i would shim it to the correct caster. forget about pinion angle for now... 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.

---

Quote:

---

Originally Posted by agjohn02

WTF?

---

I know, that comment wasn't directed towards you at all. :gigem:

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

Quote:

---

Originally Posted by uglyota

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 wikipedia

Arthur Krebspplied the first the positive caster angle to automotive front-train in his 1896 car English patent : "To ensure stability of direction by means of a special arrangement of fore-carriage, that is to say, to re-establish automatically the parallelism of the two axles of the vehicle when there is no tendency to keep them in any other direction, or after a temporary effort has caused them to diverge from said parallelism. [...] The axle of the fore-carriage is situated a suitable distance behind the projection of the axis of the pivot-pin in order to ensure the stability of direction above referred to."

---

to bad he was french... although he has to be of german decent with the krebs last name

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

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.

---

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

Quote:

---

Originally Posted by DRAGOONRANCH

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:

---

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.

Oh well. :gigem:

Quote:

---

Originally Posted by uglyota

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

---

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: