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Overload springs for rear?

Where can I get some kind of overload springs or airbags for the rear of my car that fit inside the stock springs (or something along those lines)?

JCWhitney used to have airbags designed to fit inside the stock coils for the thunderbird for $65, and I was gonna get some of those but they apparently don't sell them anymore (they aren't listed on the website). I can't find much of anything else. I'm just looking for something I can put in there, because if I haul 2 other people in the car with me it seems like the rear suspension  near bottoms out over every bump. Suggestions?

Garrett H.
'94 F250 XLT- 4x4, 5 speed, 7.3 IDI Turbo Diesel, 4" intake, 4" exhaust, 5" turnout stacks, manual hubs, etc.
'87 Thunderbird Turbo Coupe
Engine, wheels, tires, etc!
Exhaust sound clip
Another clip

Overload springs for rear?

Reply #1
Have you tried cargo coils?

Overload springs for rear?

Reply #2
last time i checked summit has those airbags.
2005 Subaru WRX STi|daily driver

Overload springs for rear?

Reply #3
Sumbitch, there they are, summit does have them. Thanks!

Garrett H.
'94 F250 XLT- 4x4, 5 speed, 7.3 IDI Turbo Diesel, 4" intake, 4" exhaust, 5" turnout stacks, manual hubs, etc.
'87 Thunderbird Turbo Coupe
Engine, wheels, tires, etc!
Exhaust sound clip
Another clip

Overload springs for rear?

Reply #4
Get the air bags. Had them on my car they worked great. You can air them up when needed. Then when not in use they don't effect the ride or ride height.




SCT Tuned by Me(Greg@SpeedyDyno.com)

E.T. 10.28 @ 136.5 MPH 1/4 mile: List of Mods; 351 EFI, AFR heads,AOD,Rousch 13in frt brakes,11in rear brakes, AirRide Tech air ride system, Sub frame connetors,2400 RPM stall, 3.50,BBK shorties,T62PT Turbos  air to air intercooled, Home built kit.
Car weights 3705lbs without driver:burnout:

Overload springs for rear?

Reply #5
I was gonna get em last year but couldn't spare the funds due to trying to finish my new engine...I will definitely get them this year. Although Summit's website says the ship date for them is Feb. 7th? sheesh...guess I might as well wait a little while to order.

Garrett H.
'94 F250 XLT- 4x4, 5 speed, 7.3 IDI Turbo Diesel, 4" intake, 4" exhaust, 5" turnout stacks, manual hubs, etc.
'87 Thunderbird Turbo Coupe
Engine, wheels, tires, etc!
Exhaust sound clip
Another clip

Overload springs for rear?

Reply #6
Sorry for my stupid question....
Now since we are talking about airride shocks. My shocks in the rear of my cougar are completely worthless at this point. Clanks and clunks and sags alot whenever I take off. Now if I were to purchase these air shocks, would the car benefit if I keep them tight from a launching standpoint? Since I'm getting classic plates on her this month or so she will only be out once a week. And that once a week I hope to run a few slow imports.

Having that saggy backend won't help matters. Especially when I need it to be tight back there. I'm not real good when it comes to suspension and what's available. Any help would be cool since this topic came up.

Overload springs for rear?

Reply #7
We are talking about airbags that go inside the coil springs in the rear. Not an air shock.


I have a used set of the bags that I took out of my car when I converted it over to AirRide.




SCT Tuned by Me(Greg@SpeedyDyno.com)

E.T. 10.28 @ 136.5 MPH 1/4 mile: List of Mods; 351 EFI, AFR heads,AOD,Rousch 13in frt brakes,11in rear brakes, AirRide Tech air ride system, Sub frame connetors,2400 RPM stall, 3.50,BBK shorties,T62PT Turbos  air to air intercooled, Home built kit.
Car weights 3705lbs without driver:burnout:

Overload springs for rear?

Reply #8
Hey fastcat how much would you want for those?

Garrett H.
'94 F250 XLT- 4x4, 5 speed, 7.3 IDI Turbo Diesel, 4" intake, 4" exhaust, 5" turnout stacks, manual hubs, etc.
'87 Thunderbird Turbo Coupe
Engine, wheels, tires, etc!
Exhaust sound clip
Another clip

Overload springs for rear?

Reply #9
How about $40 plus shipping? I'll try to get some pic and check there location. My garge is a mess.:giggle:




SCT Tuned by Me(Greg@SpeedyDyno.com)

E.T. 10.28 @ 136.5 MPH 1/4 mile: List of Mods; 351 EFI, AFR heads,AOD,Rousch 13in frt brakes,11in rear brakes, AirRide Tech air ride system, Sub frame connetors,2400 RPM stall, 3.50,BBK shorties,T62PT Turbos  air to air intercooled, Home built kit.
Car weights 3705lbs without driver:burnout:

Overload springs for rear?

Reply #10
If it's all still in nice shape, that's fine with me...

Just out of curiosity...are the airbags red, or blue? The ones JCWhitney shows are red, but the ones summit shows are blue. :dunno:

Garrett H.
'94 F250 XLT- 4x4, 5 speed, 7.3 IDI Turbo Diesel, 4" intake, 4" exhaust, 5" turnout stacks, manual hubs, etc.
'87 Thunderbird Turbo Coupe
Engine, wheels, tires, etc!
Exhaust sound clip
Another clip

Overload springs for rear?

Reply #11
Steve, air shocks are junk. I'd avoid them like the plague if I were you.  Unless you really like the 'stinkbug' stance where the ass end is way up in the aid, and you really don't mind losing all traction around corners and ride comfort, don't get 'em.  I used 'em for a while on my '84 LTD (fox chassis also) and it was a mistake.  They usually end up leaking after a few months anyway.  I'd only reccomend them if you were planning on towing a trailer or something of that nature.

Overload springs for rear?

Reply #12
Moog sell the cargo coil springs    they are aboout 85 bucks if i remember correctly!!!


Overload springs for rear?

Reply #13
They are RED in color.




SCT Tuned by Me(Greg@SpeedyDyno.com)

E.T. 10.28 @ 136.5 MPH 1/4 mile: List of Mods; 351 EFI, AFR heads,AOD,Rousch 13in frt brakes,11in rear brakes, AirRide Tech air ride system, Sub frame connetors,2400 RPM stall, 3.50,BBK shorties,T62PT Turbos  air to air intercooled, Home built kit.
Car weights 3705lbs without driver:burnout:

Overload springs for rear?

Reply #14
Cool.

Well, whenever you find them, send me a PM with  how much shipping will be (my zip is 26562 if you need it) and your paypal addy and I'll send you the money.

Thanks :)

Garrett H.
'94 F250 XLT- 4x4, 5 speed, 7.3 IDI Turbo Diesel, 4" intake, 4" exhaust, 5" turnout stacks, manual hubs, etc.
'87 Thunderbird Turbo Coupe
Engine, wheels, tires, etc!
Exhaust sound clip
Another clip