My 69 sits 1" lower on the drivers side?
I know I need torsion bar bushings, that's in the process!
Is there any thing else that can cause one side to sag more than another??

 

My 70 is about 3/4" lower on the driver side. I actually think it more of a body mount / fender glued on crooked thing then a suspension issue.

Measure from some flat ground to the frame. Is it the same on both sides? If the frame is in the same place then it is a glass issue. Id the frame is different then it is either a bent frame or a sagging spring.

 

My 70 is about 3/4" lower on the driver side. I actually think it more of a body mount / fender glued on crooked thing then a suspension issue.

Measure from some flat ground to the frame. Is it the same on both sides? If the frame is in the same place then it is a glass issue. If the frame is different then it is either a bent frame or a sagging spring.

 

Mine does same thing: ~3/4" Also the body actually sits the the left of the chassis. I can see that the body mounts on the driver side have deteriorated, while the passenger side mounts are in OK condition. The body needs to be lifted and reset with new mounts. I am not up for that job just yet...

Something to consider, and Good Luck!

 

mine is the same as your vetdrms its sitts alittle to the side and its about
3/4" inch lower on one side back gotta fix this sometime but the mounts looks good still so havent gotten around to it....

 

There really is a very simple but pretty accurate way to tell where to start looking for your problem and how much money you're talking about to fix it.

The first thing you should do is take a few measurements on very level ground (garage floor?). I would take at least three on each side of the car along the frame. Typically one near where the front suspension mounts, one in the middle near where the transmission crossmember attaches and one in the rear near the rear body mount. Use the exact same spot on both sides of the car (both vertically and horizontally) and make sure you're measuring to the frame not suspension. (If you have a GM assembly manual, available from most Forum vendors, you can even look up the factory specified measurements.)

Compare these measurements left to right. If you find the left side to be close to an inch lower than the right, there's your problem, and it's in the suspension. It's probably time for some new springs and or suspension bushings, etc, but could be as simple as adjusting one of the rear spring bolts. If the measurements are all within a quarter inch of each other the problem is not in your suspension, but in how the body rests on the frame. This means more money and can be much more involved. Typically new body mounts, but could certainly as suggested, involve a poorly hung body panel. Body mounts can lead to a real can of worms and in my opinion is the number one area (along with a rusty birdcage) that could disqualify a C3 for purchase. I examine body mounts more closely than any other aspect of the car. They're hidden and hard to examine, so more easily overlooked or even disguised.

Keep in mind that even if your measurements differ from the factory specified measurements, that's not necessarily a problem unless again there is a significant difference left to right. It could mean that some PO has lowered the car or that again your springs have weakened over time.

Take some measurements and let us know what you find… Good luck.

GUSTO

 

OK thanks guys

I guess more looking & measurements when it goes in for torsion bushings will be in order !

 

I am convinced this a a GM Fiberglass "mold" issue that was in the 68 molds and carried all the way to the 73's. I measured floor to lip of fender well (within 1/4"), frame rail in front of the rear wheel on both sides and it was even, from center of outside left tail light to floor and from outside right tail light to floor and there was a full 3/4' difference with the left side being lower. I even added 2 thin shims to all 4 left side body mounts when I replaced them and guess what, same issue. When standing behind the car, the door area, B Pillars and deck look level. Try viewing those areas while blocking out the tail light panel. Then look at the tail light panel. I truly believe that this is where the irregularity was in the factory mold. In the tail light area. JMO