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1st and 2nd Generation Pro Coil Springs

1st and 2nd Generation Pro Coil Springs

Pro Coil Kit Spring- QA1 Suspension Component

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Pro Coil Springs

These powder coated, chrome appearing springs fit perfectly with QA1’s Pro Coil Systems. These springs are available with flat and pigtail ends and in 10” and 11” free lengths. Made with the highest quality materials, QA1 springs are strong, consistent and have a long life. All QA1 springs are lifetime guaranteed to remain within 5% of the original free height under normal operating conditions.

To determine the springs used in your Pro Coil kit, simply use the information after the hyphen in the kit part number. The first 2 numbers represent the spring length, the next three numbers represent the spring rate, and the last letter represents the style code of the spring. For example, the spring in the GD401-10350A kit has a 10” length, 350 lb. rate, and is a style code “A”. Using the chart below, we go to style code “A”, find the 350 lb. rate, and see that the spring part number is 10GSP350.

Part Number	Name	Spring Rate/In.	Upper I.D. in Inches	Lower I.D. in Inches	Style Code	Style	Length	Price
11GSF300	3.50" I.D. Tapered Spring - 11" length	300	3.5	2.5	B	Flat	11	$74.95
10GSF450	3.50" I.D. Tapered Spring - 10" length	450	3.5	2.5	B	Flat	10	$74.95
11GSP250	3.50" I.D. Tapered Pigtail Spring - 11" length	250	3.5	2.5	A	Pigtail	11	$74.95
10GSP400	3.50" I.D. Tapered Pigtail Spring - 10" length	400	3.5	2.5	A	Pigtail	10	$74.95
10GSP550	3.50" I.D. Tapered Pigtail Spring - 10" length	550	3.5	2.5	A	Pigtail	10	$74.95
10GBF350	4.10" I.D. Tapered Spring - 10" length	350	4.1	2.5	C	Flat	10	$74.95
10GBF500	4.10" I.D. Tapered Spring - 10" length	500	4.1	2.5	C	Flat	10	$74.95
10GSF350	3.50" I.D. Tapered Spring - 10" length	350	3.5	2.5	B	Flat	10	$74.95
10GSF500	3.50" I.D. Tapered Spring - 10" length	500	3.5	2.5	B	Flat	10	$74.95
11GSP300	3.50" I.D. Tapered Pigtail Spring - 11" length	300	3.5	2.5	A	Pigtail	11	$74.95
10GSP450	3.50" I.D. Tapered Pigtail Spring - 10" length	450	3.5	2.5	A	Pigtail	10	$74.95
11GBF250	4.10" I.D. Tapered Spring - 11" length	250	4.1	2.5	C	Flat	11	$74.95
10GBF400	4.10" I.D. Tapered Spring - 10" length	400	4.1	2.5	C	Flat	10	$74.95
10GBF550	4.10" I.D. Tapered Spring - 10" length	550	4.1	2.5	C	Flat	10	$74.95
11GSF250	3.50" I.D. Tapered Spring - 11" length	250	3.5	2.5	B	Flat	11	$74.95
10GSF400	3.50" I.D. Tapered Spring - 10" length	400	3.5	2.5	B	Flat	10	$74.95
10GSF550	3.50" I.D. Tapered Spring - 10" length	550	3.5	2.5	B	Flat	10	$74.95
10GSP350	3.50" I.D. Tapered Pigtail Spring - 10" length	350	3.5	2.5	A	Pigtail	10	$74.95
10GSP500	3.50" I.D. Tapered Pigtail Spring - 10" length	500	3.5	2.5	A	Pigtail	10	$74.95
11GBF300	4.10" I.D. Tapered Spring - 11" length	300	4.1	2.5	C	Flat	11	$74.95
10GBF450	4.10" I.D. Tapered Spring - 10" length	450	4.1	2.5	C	Flat	10	$74.95

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2 1/2" I.D. Powdered Coated Springs Starting at: $43.95	2 1/2" I.D. Chrome Plated Coil Springs Starting at: $56.95	1 7/8" I.D. Coil Springs Starting at: $47.31	2 1/2" I.D. Variable Rate Springs Starting at: $59.95
1st and 2nd Generation Pro Coil Springs Starting at: $74.95	Mustang II Kit Springs Starting at: $76.95	Camaro / Firebird Springs Starting at: $64.95	2 1/2" I.D. Variable Rate Springs Starting at: $59.95