The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Front Springs

chevy_mike · 03-15-2016, 05:44 PM

This is almost impossible to figure out as free length has nothing to do with spring rate. I have have two springs that are the same free length but one is 450 lbs. rate and the other is 550 lbs. rate. The will sit at different heights with the same weight placed on them. Cut springs are even harder as whatever the original rate was, when you cut them the spring rate goes up. Nailing an existing ride height is not an easy task when replacing unknown springs.

Good luck.

03-15-2016, 05:44 PM	#4
chevy_mike Never Ending Projects Join Date: Jul 2006 Location: San Diego, CA Posts: 3,836	Re: Front Springs - Anybody got the free heights? This is almost impossible to figure out as free length has nothing to do with spring rate. I have have two springs that are the same free length but one is 450 lbs. rate and the other is 550 lbs. rate. The will sit at different heights with the same weight placed on them. Cut springs are even harder as whatever the original rate was, when you cut them the spring rate goes up. Nailing an existing ride height is not an easy task when replacing unknown springs. Good luck. __________________ . 1965 C10 Panel, Tiki Express http://www.67-72chevytrucks.com/vboa...d.php?t=506580 SOLD 1968 Chevy C10, Long, Fleetside, Hot Rod Hauler http://67-72chevytrucks.com/vboard/s...d.php?t=313233 SOLD 1965 Chevy C10, Long, Fleetside, Hot Rod C10 http://67-72chevytrucks.com/vboard/s...d.php?t=415702 SOLD We were given two ears and one mouth for a reason... listen twice as much and speak half as often...