Holy crap! I didn't think that this bar would cause so much trouble. 3/8 to 1/2 inch off.

When I did my springs, I did the eye it and it looks close thing. I readjusted it today and it fixed:

1. My wheel vibration problem! WTF?! ....I think my tires were chopping.

2. Tracking/alignment.... duh...still kina loose on the HW at center, but it's tighter in corners now....steering wise...

3. Trammeling.... some of it. 10th street here is pretty busted up, it tracks odd on this road. Usually fighting the wheel, not as bad now.

Who'd a thunk it!!.... ...Either the PHB fixed it or the car was just in a REALLY good mood tonite!

 

that's what happens when you geometricly align the car...

had a friend's who's was off by about 2.5" and he couldnt figure out why he kept shredding rear tires. i fixed it and he gave me a hundred bucks for fixin it...and it was an easy fix.

 

i think i measured my wheels are off by like .5-1".. i got an adjustable on the way i cant wait

 

The thing that burns me is when I had it aligned, I specifically ASKED the guy to get a reading on the thrust angle. After it was done and he pulled another car in there, I asked him and he said he didn't do it, he forgot...

Would thrust angle be the same thing?

 

i dont know thrust angles or anything.. i thought i just bolt it up and adjust til its right...

 

Bayer, when you adjusted the PHB did you do it with the hanging the bob from on top of the fender method? I just did it by eye when the car was on a level surface by estimating the distance between the tire and inside of fender... Maybe I should get a more precise measurement?

Also did you use anything special to keep the locking nut in place for the adjuster sleeve?

 

i dont understand how to read that method.. anyone care to explain?

 

once the panhard rod is bolted up and the car is on a level surface supporting it's own weight (not jacked up), loosen the nuts next to the adjuster sleeve. Next you take a small weight on a string and hang it from the fender on each side. measure the length between the string and the outer surface of the tire on each side of the car and adjust until the lengths are equal. Then tighten the jam nuts.

 

AHH! I didn't do that, I measured from a spot on the tire, looking down on the fender till the wheel/tire just dissapears, then take a measurement there.

But come to think of it, the fender will not be in the same spot on either side...DANG!! I'll try again in a couple days, can't do it at work tomarro.. buisy.

The BMR adj PHB has two jam nuts, like mentioned, and the adjuster in the middle.

 

i dont have one thats adjusted on the car so is it the same procedure?

 

If it dosen't adjust then it's just a R+R procedure. quite a bit easier.

 

its adjustable.. but arent there on car and off car adjustables?

 

Yes... a "single" adjustable requires you to remove one end of the bar from the bolt to adjust it. A "double" adjustable (like what's shown in the pic, above) allows you to adjust it with the bar installed.

If you have a single adjustable, you have to guess at how many turns of the threads you need and work it by trial and error.

 

alrighty cool... now could someone explain what the string weight measuring thing is? i understand what your doing but not how to measure it exactly

 

The plumb bob method... The weight will hang straight down. you measure form there to a point on the tire. Use the same point on both sides. This will tell you where the rearend is sitting, and what adjustment you have to make.

Let's say you measure it and one side is @ 3/4"....let's say..... and the other side is @ 1/2". You adjust the bar to where both sides read 5/8". That centers the rear end on the chassis.

And the term "thrust Angle" is the angle that the rear end is..."pointing", basically. Certain vehicles that seem to be 'dog-tracking' is due to a thrust angle problem. The Rear wheels have to be pointing in the same path as the front. This also effects tire wear, amogst other suspension and chassis components (like wheels bearings). Your tires will wear unevely, more of a scuffing concern. I said chopping earlier, wrong term. Instead of the tires wearing laterally w/ the direction of the tread, they might wear in a left to right or R to L angled pattern.

AS seen here.