well how can you tell and what does it usualy cost for a new set of stock hight front and rear

-Stell

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1988 IROC 305TPI MINT!!
Mods= Accell SuperCoil, MSD 6A, Ported Plenum, No MAF Screans , K & N, 160 Thermostat+ Temp Switch, Relocated MAT, Cold Air

 

Call any alignment shop and ask them for the ride height specs for the car. They should be able to give you a measurement and location to measure from. Lets say it's supposed to be 28" from the bottom lip of the wheel well to the ground. If it's 27" then the springs have sagged. There's usually a +/- tolerance.

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Stephen's racing page

87 IROC-Z Pro ET Bracket Race Car
383 stroker (carbed) with double hump cast iron heads and pump gas
454 Big Block buildup now in progress for the 2001 racing season

Best results before the 383 blew up
Best ET on a time slip: 11.857 altitude corrected to 11.163
Best MPH on a time slip: 117.87 altitude corrected to 126.10
Altitude corrected rear wheel HP based on power to weight ratio: 476.5
Best 60 foot: 1.662

Racing at 3500 feet elevation but most race days it's over 5000 feet density altitude!
Member of the Calgary Drag Racing Association

87 IROC bracket car, 91 454SS daily driver, 95 Homebuilt Harley

 

Have you replaced them lately?

Then you need them. You'd be surprised how much of an improvement they make, especially since that's a great time to renew all the other wear parts in the suspension like shocks & struts, ball joints, etc.

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"So many Mustangs, so little time..."