ever since i got my new rims, whenever i do like a semi-burnout or accelerate fast, the whole car starts shaking like crazy

anybody know what's up?

 

Could be a few things - have you got decent LCAs and relo-brackets for a start.

 

hah

i think my mechanic told me my LCA's were loose or something on the front

 

If your going to sell it, don't worry about it. Tell the buyer, then they may choose to buy aftermarket LCA, or not even want the rims. How's all that going anyway?

 

It would be the rear LCAs - the only thing coming undone near the front would be the nut that holds the steering wheel..lol

 

Front end of the LCA's. One bolt on each side. I can see it making noise but not affectling wheel hop so much unless the bolts fell out. Tighten them up, only takes a few minutes.

Since your car is lowered, the pinion angle is likely off and that is the source of your wheel hop. LCA relocation brackets is the answer.

 

Spohn's LCA's got rid of ALL wheelhop on my ride...

 

It will if your stock bushings are worn.

His car is lowered now. Bet his pinion angle is off because of the change in geometry for the rear end. Adj. PHB, Tq Arm and LCA's is the only way to get full control of it and make it right again.

 

That car was lowered a long time ago if I'm not mistaken and the wheel hop is supposed to be a recent problem.

Is it the pinion angle being off that causes wheel hop or is it the fact that the LCAs are at the wrong angle as a result of it being lowered and the change in pinion would therefor be just a symtom but not actually the cause.

Pinion is just the angle of the DS - seems to me that it would not cause wheel hop itself although it might cause vibration at speed.

 

I agree about the pinion angle

How are the shocks?

 

Pinion angle is the most important part of wheel hop. Let me put it this way.

What happens to a car when the suspension is lowerered. Lets just keep this to the rear end.

What do you think the best pinion angle is and how would you adjust it?

If you want we can go into the front end later.

 

OK - could you explain why - just so that we know.

 

Lowering certainly has a dramatic effect on wheel hop.

Read this thread:
https://www.thirdgen.org/techbb2/sho...hreadid=285441

All the folks I know with lowered 4th gen cars have run into this problem. 3rd gen rear suspension is identical.

I experence it only on the drag strip with my 98 but I haven't lowered it. I have replaced the stock LCA's whith Hotchkis or how ever you spell it LCA's. Didn't make any difference cept for making the car vibrate at speeds over 130. Hard to see in the rearview mirrior. I might put the stockers back. Car is much smoother with them.

 

Ok somebody has to explain to me how you change the pinion angle on a third gen Torque Arm style suspension. I thought that One of the big advantages of the Torque Arm and its length is that changes in Ride height have almost no affect on the pinion angle.

This Torque arm is bolted directly to the differential and stops the differential and pinion from rotating thereby transfering the torque forward to the mount on the transmission. The torque arm moves back and forth in the transmission mount but the angle of the differential is not changed appreciably. I thought that is why you have to buy an adjustable torque arm with the turnbuckle setup at the back if you want to change pinion angles.

As for the problem at hand with the wheel hop I would guesss that the rear lower control arms are higher at the back where they attach to the axle tube than they are at the front where they atach to the body.

Take a look at this sketch for the reason why it happens. Take a look at this sketch to see an explanation of what happens with a lowered car.

 

What you said is consistant with everything I've read or heard about thirdgens.