MY 67 FB IS A LEANER!

[Robdogg67]

Recently replaced the whole rear suspension on the 67 FB. Prior to touching the car we measured the fenders to ground distance so we knew the as is and found that the car sags on the drivers side about 3/4". After changing out the rear springs the car still sags 3/4" on the whole drivers side. I figured that maybe the front coils were shot especially from drivers getting in over that last 35+. I then measured the distance from the spring perch/shock base to the top of the shock tower expecting to see a significant difference but they were within 1/8" of each other. I just ordered new coils, insulators, perches, upper a-arms and shocks but I'm still not convinced that will solve the issue. Planning on maintaning the stock ride height.

My brand new tires rub on the drivers fender now, I'm bummed. I have the shelby drop already. The car does not appear to be damaged near the main spring or frame locations underside. I'm stumped. Would a front end alignment be the miracle cure? Any ideas?

 

[jesserose17]

I would try loosening the front & rear bolts of the rear leaf springs and bounce the body up & down, then tighten to specs.

 

[302 coupe]

you don't have a spare or tool box or anything in the trunk on that side do you? If nothing else, move the battery to the pass. side trunk, that ought to fix most of it.

 

[Snail50]

I would try loosening the front & rear bolts of the rear leaf springs and bounce the body up & down, then tighten to specs.

when I redid my whole suspension, the rear wasn't level. I tried the above trick (probably recommended by jesse), and it worked. I loosened mine up and drove around the block, though. good luck.

 

[mdjay]

Although I hope this isn't the case, it's also possible it's twisted if no damage is visually evident... Good luck I hope the other's suggestions fix the problem...

 

[Robdogg67]

I did loosen, drive and retighten a couple weeks back (per recommendations) but it made no difference. Relocating the weight distribution also made no significant difference either. The whole side is off the same amount front to back. By lifting up the front left fender via. muscle I can see the left rear come up almost the same amount. But when I lift up the rear fender, the front does not come up as much which leads me to believe that the issue is in the front end somewhere. Maybe something is twisted? I guess I'll replace the coils, etc.., get the front end aligned and then see where I'm at.

I can probably shim the top coil insulator (1" poly)with a poly stock insulator which will raise it just over 1/4". Then the difference would be negligable. I don't see what it would hurt since it would be under spring load and nested up in the top shock tower, no one would know the difference. Anyone ever tried that before? Bring on more ideas and lessons learned. I hope this dilemma isn't unique to me but with my luck, I wouldn't doubt it either. Thanks for your reply's.

 

[Robdogg67]

bump...

 

[Robdogg67]

bump

 

[Ronstang]

Take your car to the frame shop. I suggest all people with 40 year old cars who do not know their pasts do so. It is not expensinve. I had mine tweaked for $75. They told me mine was so easy they only charged me setup time. My friends 67 had some issues and they did quite a bit of work to his and it only set him back $200. This is cheap considering what some here spend on trinkets for their cars.

 

[Snail50]

make sure your front coils are sitting correctly on the perch. if the sag is the same as before you touched the car, it's likely a frame issue.