Roll Lips or Add Air Bags

[SpeedRacerX]

Situation - installed 295/55-15 MTs on 15x10 gbody rims on the rear of my car. Passenger side does not rub. Driver side has a tiny rub from the fender lip and I noticed this side sits 1/4" lower than passenger side. Car has Kirban rear springs, Bilstein shocks, HRParts Sway and upper/lower arms, GNX brace.

Will airlift air bags in the rear eliminate or help with this slight rub?

I'd rather not roll the fender lips if I don't have to but to save the tires and for peace of mind, I will.

Anyone with experience with air bags for this situation?

Thank you in advance.

 

[1986 Buick GX1]

Is it possible to adjust the HRparts sway bar to correct this?
Maybe run a 1/4" spacer (https://m.summitracing.com/parts/upi-0064) or an extra isolator on the bottom of the coil spring as well as the top? (http://m.advanceautoparts.com/p/moo...-2/20516114-P?searchTerm=coil+spring+hardware)

If you don't want the stiffer ride of air bags, these may be options.

 

[achalmersman]

I keep a little bit of air pressure in my air bags for this reason. With the same wheel / tire combo

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[SpeedRacerX]

I keep a little bit of air pressure in my air bags for this reason. With the same wheel / tire combo

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Approx. How much psi?

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[achalmersman]

Idk. I havent measured it in a while. I think about 15 psi. Whatever it took to raise it a comfortable amount

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[SpeedRacerX]

Do the bags actually lift the car at all or just stop it from dropping under loads?

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[achalmersman]

Lifts it

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[SpeedRacerX]

Is it possible to adjust the HRparts sway bar to correct this?
Maybe run a 1/4" spacer (https://m.summitracing.com/parts/upi-0064) or an extra isolator on the bottom of the coil spring as well as the top? (http://m.advanceautoparts.com/p/moo...-2/20516114-P?searchTerm=coil+spring+hardware)

If you don't want the stiffer ride of air bags, these may be options.

Thank you. I was not aware of spring spacers.

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[1986 Buick GX1]

Thank you. I was not aware of spring spacers.

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Hopefully leveling out the rear will keep it from rubbing.

 

[SpeedRacerX]

Gotta love Amazon for solving problems quickly. Received the air lift bags today and installed them. Wasn't too hard. A little patience and finger strength getting the bags in the springs but once that was done, the rest was easy. I removed two bolts from the rear bumper and bolted in the air valves. Perfect location and no drilling.

The bags solved the rubbing problem. Rides a little hard with 35# so I just need to play with the psi to get it right.

I am still rolling the lips this coming Wednesday also so that when I go to the track, I can let the rear drop to help it transfer weight and hook up.

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