suspension problem

[el_ben2]

well i just had a problem
from about 2 weeks ago... i got a problem in my rear suspension (i think its the rear) whe i hit the 125 kph (75 mph) the car start to shake or make a lil jumps from the back
i think that i need only an alignament or a balance... i do it... and it doesnt fix it, so i return to the shop to align and balance again... it do it again but whit not good results
then i went to a friends shop and they told me that i need a camber kit that that maybe can be the problem... i doesnt really think that, so i asked him to double check me the car, so he saw in the computer that the convergence of the car was out of the acceptable range, so it fix it, whit a 0.6 in left and 0.11 in the right.... thats in the acceptable range (almost the computer said that)
so i try it again and it get better, but not enought
now.... about an hour ago... i just went to a highway here... and hit the 125~135 kph (75~80mph) and it start to shake again
it feels that comes from the chassis...
but i dont know
also, it doesnt feels above that range of speed...
my father thinks that i got a "ball" in the tire... or maybe the rim was hitted... also i dont know if the camber will be the problem... i got 2.0º left and 1.97º right of camber


could someone can tell me what other facs are affectin me... cus its staring to angry me! also i doesnt feel as sure as i will in the car


btw, im gonna try swappin my 18's to stock 16's this weekend, and see if thats the problem

[webby]

do you have the car lowered? Or is this the stock suspension doing it.

[el_ben2]

i have the tein springs....

[Tate]

try swaping the rear wheels with the front, see if the vibration stays at the rear or move with the wheels.

[el_ben2]

yeah ill try that tomorrow or in the weekend... cus my schedule its horrible lol
btw, that isnt problem of the camber right?