Classic Mustangs (Tech)Technical discussions about the Mustangs of yester-year.
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I have a '66 coupe with a SBF. Did the Shelby drop and installed 620 lb., 1" drop springs. It dropped way too low while driving around the neighborhood. I'm running 225-45R17's on the front on 8" wide wheels.
It's so low that your can't get your finger between the tire and the fender lip. Does this make sense to anyone? I wanted it low in the front, but not as low as it is. There is only 17 miles on it since being put back together ...
John's Mustang Parts sells stock height, heavy duty springs. Is that what I should switch to?
I'm afraid there is something else wrong, but I'll be darned if I can find it. I've had 2 buddies look at it and the consensus is that I have to change springs.
Any help will be appreciated.
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The Shelby drop will reduce ride height because it lowers the perch location by approx. half of the arm mount drop, so ~1/2". Then you add drop springs, that may or may not actually be 620lb springs, a lot of places list springs as 620's and they're actually like a 400-500lb spring max. So then they sit lower even still. You could have as much as a 2" drop in the front without realizing it.
Maier sells 500 and 600lb springs that are what they say they are, and they sell them uncut so you can adjust to the ride height you want. They're short enough to install without a compressor (uncut) but sit higher than any other spring I've used that was listed as a 1" drop spring.
Who cares how much horsepower it has, all that matters is how fast it goes!
Untested 331, lots of suspension, chewing up corners.
I really want to take my kid to school in it on Friday, so I'm hoping the ones at John's are what they say they are. He's been pretty good to me, letting me return stuff after 30 days and always standing behind his products.
I expected 3/8-5/8" drop from the Shelby drop, but these springs would make a stocker drag the ground. I've also considered Grab-A-Track springs, heard good things.
I have the Grab-A-Trak .620" dia springs (which are ~540lb) and have done the Shelby drop on my '67fb. The front still sits a bit higher than I'd like, definitely not as low as you're describing. I'm planning on cutting half a coil or so when I get a chance to drop it to a more conventional ride height.
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