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Old 02-12-2009, 08:13 PM
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Spring rate question?

Does anyone know what the approximate spring rate is for a stock, front coil spring on a MustangII/Pinto?

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Old 02-13-2009, 09:08 AM
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They had several springs, depending on body style and engine combo.
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Old 02-13-2009, 10:06 AM
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If you are trying to determine what spring rate to use on a streetrod this site may help:

http://www.aldaneagle.com/street.html
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Old 02-13-2009, 10:11 AM
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Here is another spring rate chart.
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Old 02-13-2009, 11:06 AM
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Are we talking original Ford Mustang II springs or are we talking Mustang II IFS coil overs?

Vince
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Old 02-13-2009, 11:29 AM
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Quote:
Originally Posted by 302 Z28
Are we talking original Ford Mustang II springs or are we talking Mustang II IFS coil overs?

Vince
He specified stock MII/Pinto springs.
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Old 02-17-2009, 09:49 AM
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Thanks guys...The only reason I was asking was,I'm building a prostreet Morris Minor with a "stock"narrowed MII frontend and with the 350/350 combo in it, the lower a-arms are still not level and was looking for some sort of a starting point.It's about 1 1/2" to 2" from level.I'm thinking about cutting 1/2 a coil off and trying that.Cutting too much and I'm going to have a shock travel problem,not much there!If that doesn't work I may go to coilovers. Thanks again...Frank
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Old 02-21-2009, 08:20 AM
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You can check with Speedway Motors. They have 7 'stock' springs now available. Your car is probably pretty light so I'd look at the 11" 350# spring. This should get you close to a-arm level. My 41 Willys weighs 1340 on the front end and these are ones I'm going to use.
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Old 02-21-2009, 11:47 AM
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Quote:
Originally Posted by Minor Problem
Thanks guys...The only reason I was asking was,I'm building a prostreet Morris Minor with a "stock"narrowed MII frontend and with the 350/350 combo in it, the lower a-arms are still not level and was looking for some sort of a starting point.It's about 1 1/2" to 2" from level.I'm thinking about cutting 1/2 a coil off and trying that.Cutting too much and I'm going to have a shock travel problem,not much there!If that doesn't work I may go to coilovers. Thanks again...Frank

Cutting half a coil id a good way to lower the front about 1 1/2" to 2" (remember the drop in the spring height is magnified X2 out at the wheel). You can cut the spring w/ abrasive disk or just torch it off. I know the problems w/ heating heat treated steel but this is at an extreme end of th wire that snuggles in a groove in the A-arm at very low stress so no harm is done cutting it this way. Half a coil Doesn't affect ride quality perceptibly. My theory is try cutting a coil on a stock spring and see what happens. If it works you saved an iron tree (not to mention precious $$$$$$$), if not no big loss, just buy the after-market spring you would have needed in the first place.
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