maky57

I had a car accident where a guy hit my rear wheel with his car,the wheel got bent but it wasnt big damage,only one bar in suspension got bent and had to be changed.I took the car to mechanic and he changed the bar and put the one from regular W124,a bar which is on english called "thrust arm" i think.So after that i thought since my car has Sportline suspension and that thrust arm has bushings and the mechanic installed bar with regular W124 bushings is it a problem and can i damage my suspension now driving with one bar with non sportline bushing and other bars with sporline bushings.Thank you

ptoro01

Nope, but here's the funny thing... the thrust arm is usually the first to wear out.

klobbr

In my mind, you will have a non true rear end on the car. This may not be something you will notice immediately, but I can imagine that the mis-match will lead to uneven wearing of one or two tires, and early wear is coming on the weak side bushings. The length and diameter of the anti roll bar will not be a correct match either, so that will eat the rubber bits up faster on the strong side. Independent suspensions should match part by part, unless you are building a sprint racer. Even so, the bushings need to match up all the way around.

ptoro01

The difference between the bushings is minimal compared to wear on everything else.

For tires to wear uneven, the bushings have to have noticeable play.

I do agree with you klobbr, but in this case, the stronger bushings are now worn, so the new one fits into the average. Also, thrust arms on a 220 don't get that much brute force.