The Shop > Suspension, Steering, Brakes, Wheels & Tires
Leaf Spring Specs.
IowaEagle:
Years Description # Leaves Load Rate Arch Measurements
74-84 Concord, Hornet 2-4 Door 4 610 85 8-5/8 23 x 29
75-76 Pacer 4 650 105 7-1/4 21-1/2 x 29
77-80 Pacer 4 660 95 8-1/2 23 x 29
77-80 Pacer 4 710 95 9 23 x 29
70-78 Gremlin - 4 Cylinder 4 8-1/4 23 x 23
70-78 Gremlin - 4 Cylinder Heavy Duty 4 8-3/4 23 x 23
80-87 Eagle 4 385 107 5-1/8 23 x 29
80-87 Eagle 4 435 107 5-5/8 23 x 29
79-84 Spirit, AMX 3 400 84 8-3/8 23 x 27
79-84 Spirit, AMX 4 505 105 8-1/2 23 x 27
81-84 SX-4, Kammback 4 540 90 7-1/8 23 x 27
71-74 Javelin - 6 Cylinder 4 6-1/2 23-1/2 x 29-1/2
71-74 Javelin - 8 Cylinder 5 5-7/8 23-1/2 x 29-1/2
64-69 Rambler American 4 7-1/4 22-1/2 x 29-1/2
Information from http://www.generalspringkc.com/leaf_springs/amc/index.html
IowaEagle:
As you can see above there is a big difference between Eagle leaf springs from other AMC cars. So one size fits all springs will probably not do at all. I suppose if you wanted extra lift in the rear for the Series 50 cars you could use Concord/Hornet springs and for SX/4's and Kammbacks then use the Spirit/AMX springs.
Gil-SX4:
Well its not that easy since the load rate has to do all so with the hight of the vehicle once install on it and the load rate is all so affected by the way it bolts on to the axle either on it or under witch will affect the flex point on the leaf spring.
Not sure how to explain this so you can understand.
Looks at the AMC Concord its arch is 3 4/8 more then the AMC Eagle, but then the AMC Eagle has 22 pounds more of Rate then the AMC Concord before the leaf springs start to work as they should
IowaEagle:
You are correct Gil. So, best to stick with what is specified for each model to begin with.
73Hornet:
Looks like ill be getting a set of the lighter Eagle Leafs for my hornet Should be a good 3 inch drop!!
And a stiffer rear end to boot should help alot with body roll!
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