66 Impala SS suspension - Impala Tech
Brakes & Suspension Conversion Questions & more

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post #1 of 7 (permalink) Old 08-15-2018, 09:18 PM Thread Starter
Join Date: Aug 2018
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66 Impala SS suspension

I had 2" drop spindles installed on the front and he cut 2" off the rear coils. Now my car sits way low and I'm thinking that the coils need to be replaced. I know new coils will be the cheapest but I am considering either coil-overs or air bags. Any suggesting?
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post #2 of 7 (permalink) Old 08-15-2018, 10:03 PM
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Morgan, just think of the old Visa Ad:

Price of the ride height air bag controller (missing sensors): $2,199.99


Price for air bags and suspension parts to mount them (A-arms and rear control arms): $2,089.99


Price of compressor and electronics to run the pump: $1,999.99


Price of new springs: $54.49


Saving $6,234.47 to buy something more important than stance PRICELESS!

Welcome to the Team!

Big Dave
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post #3 of 7 (permalink) Old 08-15-2018, 10:24 PM Thread Starter
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Thanks Big Dave!
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post #4 of 7 (permalink) Old 08-15-2018, 10:26 PM Thread Starter
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Do you recommend replacing shocks also?
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post #5 of 7 (permalink) Old 08-15-2018, 11:43 PM
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Not unless they are worn out.

I have spent a small fortune on cars in my past seventy years (maybe even a medium sized fortune). Any way I now know that if it ain't broke; don't fix it.

Big Dave
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post #6 of 7 (permalink) Old 08-17-2018, 11:40 PM
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Welcome to the site ccmorgan.

We've definitely had this discussion before!

You'll generally get no argument that the coilovers are the best solution but pretty damn costly too.

Air suspension is the middle ground. Some kits are cheaper than others, some are designed better, but driving around on them either overinflated or underinflated makes for a rough ride.
I've seen several of the AirRide cars run around autocross tracks and they put down some real good numbers.

I would agree that your car looks a bit low overall in that picture. Looks lower in back than in the front actually. And the front isn't (to me) too far off from where I'd put it. Maybe an inch. Less than 2".
For the front they make some neat rubber 3/8" and 1" and 2" spacers that would do the job for you. For the rear, seems like it needs a little more -I'd go for spring replacement.

just my 2 cents.

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post #7 of 7 (permalink) Old 08-23-2018, 01:38 PM
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I have air bags on my 67 and I love them. total cost was about $1k and I did it myself, not that hard to do. Kit consists of 8 valves from ez air ride, 2 5g tanks, 2 compressors, 4 air bags from Universal, 1/2" lines, mounting brackets and shock relocates for the front, 2 dual gauges. All of this was mounted on stock control arms (new bushings and balljoints) with no cutting involved. I can have it back to stock in a day.

I've tried different springs including 2" lowering springs ($500 from Eaton) and it was still too soft, felt like a boat on the freeway. Now with bags I set the front to about 100psi and back to 50-60 and it rides smooth but nice and firm. Not as firm as my Chevelle on coil overs but not as soft like it was on springs, IMO it's just right. Ride quality and cornering is dramatically improved as the bags reduced the body roll. Freeway driving is amazing now as it doesn't bounce around, but yet it's still very comfortable.

You don't need to spend $6k to have a quality (simple) air ride.
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