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Chrysler Crossfire
Checking the rear springs

This is one information page of my collection of what I have repaired on my Crossfire.

You should not do any repair on your car if you don't have enough experience and knowledge! You use this information at your own risk! Don't blame me if something goes wrong.

It's very dangerous to work with the springs. A compressed spring has a lot of power, you can be killed if you do it in a wrong way. Let the workshop do it if you are not a specialist !


If you have a Mercedes SLK R170 with a 320 engine it's almost exact the same.

You have to work with critical parts when doing work on suspension. Only do this if you have enough knowledge !

Chrysler Crossfire, spring rear

3, Checking the rear spring left side:

Now I inspect the rear spring in detail on the left side.

Rear spring left side:

Chrysler Crossfire: Checking the rear springs

A lot of arms around the spring, the upper arm is the one to replace if you want to have a camber adjustment. More about that later. Above the stabilizer bar and behind the shock absorber.

Chrysler Crossfire: Checking the rear springs

Checking the spring, it's looks okay even on this side and no damage. I also count the number of revolution it has, 8.7. That was strange, 0.2 more revolutions on this side, I couldn't see that the right spring was broken. But it's difficult to see exactly how many revolutions the spring has, maybe the same.

Chrysler Crossfire: Checking the rear springs

The end of the spring at upper side.

Chrysler Crossfire: Checking the rear springs

Close up view of the top end of the spring.

Chrysler Crossfire: Checking the rear springs

At the bottom of the spring, the tip of the spring is buried in sand.

Chrysler Crossfire: Checking the rear springs

Here the spring ends.

Chrysler Crossfire: Checking the rear springs

I also want to know where the spring is attached on the lower arm, 21 cm from the inner pivot point.

Chrysler Crossfire: Checking the rear springs

And to the outer pivot point it's about 25 cm from the center of the spring.

Chrysler Crossfire: Checking the rear springs

Now I know the spring is attached about the middle of the lower arm. The car is on the ground now and the spring is compressed. The height of one revolution is 25 mm, it gives 50 mm at the wheel. The difference between the right and left side was about 11 mm, little bit less than 1/4 of revolution of the spring. If I want to lower the rear of the car by 20 mm I should have a spring that is 10 mm shorter when it's compressed. Normal kit you buy lower the car between 30 to 45 mm, too much for me and you must have shorter shock absorbers too with that huge lowering of the car.

Now I have solved what's cause this problem with different height left vs right side of the car. The coil pad can be bought in different thickness.

Here are two good links with information:

I boughty two spring pads long time ago to have as spares, but what did I bought ?

Chrysler Crossfire: Checking the rear springs

Now when I examine them in deeper detail I see that these have two knobs, it's the 9 mm thickness. Measured from the deepest part to the bottom. 1 knob is 5 mm thick, 3 knob is 13 mm thick and 4 knob is 17 mm thick. Now I must found what I have installed on the car today, have they mixed them earlier or are they of the same thickness but the springs a bit different stiff. Perfect for me is if I can lower the side that is higher by 10 mm, because the spring is atached in the middle of the arm a 5 mm pad shim maybe will be okay.

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