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74-77Camaro.com



Spring Comparison Chart

This is a work in progress till I can figure out this CSS and tables stuff.

I wanted to make a chart similar to the one used over at this Monte Carlo Site. This is to compare the stock springs of my car (AC/75-79/V8) to other possible springs. The stock 329 lb spring held up 2310 lbs at its install height of 10.5 inches. This shows me at what height the other springs will hold a similar weight. For a one inch drop over stock, at an approx. 400 lb rate, the 5610 would be a choice. For 3/4" drop, the 5642 might be used.

Original
AC
AC
         
AC
AC
   
AC
 
Application
81
80-81
82-92
75-79
82-95
85-92
83-95
81
75-79
78-79
 
78-79
75-79
 
HD Z28
Z28
F-Body
Nova
S10
F-Body
S10
HD V8
V8
HD Z28
 
HD Z28
V8
 
Part Number
6450
6486
5610
5642
5660
5662
5664
590
576
8002
8000
586
5006
Spring Rate
406
343
421
421
598
649
707
399
329
414
436
432
355
Install Height
11.25
11
11
11
10.75
10.75
10.75
10.5
10.5
10.5
10.44
10
10
Free Height
15.93
16.63
15.19
15.39
13.26
13.23
13.5
16.35
17.52
16.12
16.42
16.31
16.99
lbs @ install height
1881
1935
1750
1860
1538
1690
1863
2374
2310
2329
2555
2705
2480
Compressed height
                         
12.00
1576.50 1592.00 1330.00 1439.00 790.50 878.75 979.25 1775.50 1816.50 1708.00 1901.00 1841.00 1770.00
11.75
1678.00 1677.75 1435.00 1544.25 940.00 1041.00 1156.00 1875.25 1898.75 1811.50 2010.00 1949.00 1858.75
11.50
1779.50 1763.50 1540.00 1649.50 1089.50 1203.25 1332.75 1975.00 1981.00 1915.00 2119.00 2057.00 1947.50
11.25
1881.00 1849.25 1645.00 1754.75 1239.00 1365.50 1509.50 2074.75 2063.25 2018.50 2228.00 2165.00 2036.25
11.00
1982.50 1935.00 1750.00 1860.00 1388.50 1527.75 1686.25 2174.50 2145.50 2122.00 2337.00 2273.00 2125.00
10.75
2084.00 2020.75 1855.00 1965.25 1538.00 1690.00 1863.00 2274.25 2227.75 2225.50 2446.00 2381.00 2213.75
10.50
2185.50 2106.50 1960.00 2070.50 1687.50 1852.25 2039.75 2374.00 2310.00 2329.00 2555.00 2489.00 2302.50
10.25
2287.00 2192.25 2065.00 2175.75 1837.00 2014.50 2216.50 2473.75 2392.25 2432.50 2664.00 2597.00 2391.25
10.00
2388.50 2278.00 2170.00 2281.00 1986.50 2176.75 2393.25 2573.50 2474.50 2536.00 2773.00 2705.00 2480.00
9.75
2490.00 2363.75 2275.00 2386.25 2136.00 2339.00 2570.00 2673.25 2556.75 2639.50 2882.00 2813.00 2568.75
9.50
2591.50 2449.50 2380.00 2491.50 2285.50 2501.25 2746.75 2773.00 2639.00 2743.00 2991.00 2921.00 2657.50
9.25
2693.00 2535.25 2485.00 2596.75 2435.00 2663.50 2923.50 2872.75 2721.25 2846.50 3100.00 3029.00 2746.25
9.00
2794.50 2621.00 2590.00 2702.00 2584.50 2825.75 3100.25 2972.50 2803.50 2950.00 3209.00 3137.00 2835.00

The 5610 was designed to hold up 1750 lbs at 11 inches. My approximate front end weight is 2310 lbs, so the 5610 compresses until it can carry that much weight. These are all very general guidelines and you would have to have an accurate measurement of your front end weight to be precise.