QA1 Precision Products Spring, CR-SI High Travel 2-1/2" ID 12" X 150
QA1 Precision Products Spring, CR-SI High Travel 2-1/2" ID 12" X 150
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Shipping & returns
Shipping details
In-stock orders are processed within 48 hours; transit time is additional.
International orders include export processing and customs clearance. Duties, taxes and brokerage are extra; final freight charges may change after remeasurement.
Read the shipping policyReturns
Need help with a return? Request authorization within 30 days of delivery for eligible unused, uninstalled items. See details for exclusions and applicable fees.
Read the full return policyReturn details & how to start
Request return authorization (RMA) within 30 days of delivery for eligible items. Keep items unused and uninstalled, with original packaging and accessories. Electronics, liquids, special orders and other categories are excluded.
Email sales@frsport.com with RETURN and your order number in the subject to request an RMA. Please wait for return authorization before sending your item back.
Wrong part/size or change of mind: a 20% return processing fee applies, plus applicable shipping costs.
Original shipping is non-refundable. For orders shipped free, the actual outbound shipping cost is deducted from the refund. Return shipping is prepaid by the customer.
After payment capture, cancellations and refunds generally incur a 5% processing fee, except for our error, confirmed defects or confirmed carrier loss. The 5% and 20% fees do not stack; only the greater applicable fee applies. Store credit waives the 5% fee, but applicable return fees remain.
Missing, incorrect or transit-damaged items: report within 3 business days of receipt with photos of the product and packaging.
For defective items, contact us for help with the manufacturer's warranty process. The manufacturer decides the claim.
Specifications
Product details shared across all variants.
- Product type
- Coil Spring
- Category
- Coil Springs
- Item condition
- New
- Manufacturer type
- Aftermarket
- Shipping dimensions (L × W × H)
- Shipping weight
- 3.2 lb
- Barcode
- 806990112897
Billable shipping weight; may include dimensional weight.
2 1/2" I.D. High Travel Springs
Available in 7", 9", 10", 12", 14" and 16" lengths, QA1 offers an assortment of high travel springs with a silver powder coated finish. Made in the USA, these 2 ½" I.D. high travel springs are manufactured from specially designed high-tensile, chrome silicon alloy spring wire, which allows them to have fewer coils and a smaller wire diameter. As a result, these springs are lighter and have increased travel due to the larger distance between the coils. These lighter springs reduce unsprung weight and react faster, optimizing suspension performance.
In addition, this high-grade material, along with careful heat-treating and post-processing, allows for greatly improved fatigue life, and the coil design allows the springs to be compressed to coil-bind without affecting spring rate or free height.
These new high travel springs are silver powder coated and ground at both ends for straight, consistent and accurate operations. In addition, all QA1 springs are lifetime guaranteed to remain within 2% of the original free height and rate under normal operating conditions.
Chrome Silicon Steel
All QA1 springs are manufactured using the highest quality materials for high strength, consistency and long life.
Cold Wound - Heat Treated - Shot Peened
All QA1 springs go through intensive manufacturing processes to ensure consistency, accuracy and durability.
Squared Ends
All QA1 springs are ground at both ends to ensure straight, consistent and accurate operation.
Lengths and Rates Marked
All QA1 springs are clearly marked with the free length of the spring and spring rate for quick and easy identification.
Made in the USA
QA1's high travel springs are proudly made in the USA.
Lifetime Guarantee
All QA1 springs are lifetime guaranteed to remain within 2% of the original free height and rate under normal operating conditions.
Technical Specifications
Spring Rate Charts
The charts below are a general guideline for selecting spring rates. Spring rates may vary depending on applications, usage and personal preference.
| FRONT AXLE WEIGHT IN LBS. | |||||||
| Front Axle Type | Spring Length | 1000-1200 | 1201-1400 | 1401-1600 | 1601-1800 | 1801-2000 | 2001+ |
|---|---|---|---|---|---|---|---|
| Straight Axle | 7" | 250 | 300 | 350 | 400 | 450 | 550 |
| 8" (Chrome) | 200 | 250 | 300 | 350 | 400 | 500 | |
| 9" | 180 | 220 | 250 | 300 | 350 | 450 | |
| 10" | 150 | 200 | 225 | 250 | 300 | 350 | |
| 12" | 130 | 150 | 170 | 220 | 250 | 350 | |
| Independent Suspension | 7" | 350 | 450 | 550 | 600 | 650 | Call |
| 8" (Chrome) | 300 | 400 | 450 | 500 | 600 | Call | |
| 9" | 220 | 300 | 350 | 450 | 550 | 650 | |
| 10" | 200 | 250 | 300 | 400 | 450 | 550 | |
| 12" | 150 | 200 | 250 | 300 | 400 | 450 | |
| REAR AXLE WEIGHT IN LBS. | |||||||
| Rear Axle Type | Spring Length | 900-1099 | 1100-1249 | 1250-1449 | 1450-1599 | 1600-1899 | 1900+ |
|---|---|---|---|---|---|---|---|
| Solid Rear Axle | 8" | 200 | 225 | 300 | 350 | 400 | 450 |
| 9" or 10" | 115 | 200 | 225 | 250 | 275 | 350 | |
| 12" | 95 | 130 | 170 | 225 | 250 | 300 | |
| 14" | 105 | 125 | 150 | 175 | 225 | 275 | |
| Jaguar (IRS) | 10" | 115 | 140 | 200 | 250 | 250 | 275 |
| Corvette (IRS) Ahead of Axle |
10" | 200 | 225 | 275 | 350 | 400 | 500 |
|
Corvette (IRS) Behind Axle |
12" | 95 | 125 | 150 | 225 | 275 | 300 |
Average Street Rod Weight
The following charts provide general guidelines to determine the approximate weight of the most popular street rods. Of course, each car is different so it is ideal to actually weigh the front half and the rear half of your vehicle. Average car weights listed are with driver, automatic transmission, small block Chevrolet V-8, full upholstery and all normal street equipment (such as a spare tire and gas in the tank). Fiberglass cars weight the same as steel. Stripped or lightened cars will weight less. Extra passengers will add to the weight.
| AVERAGE WEIGHT OF YOUR CAR TYPE | |||||
| Year | Model | Front | Rear | ||
|---|---|---|---|---|---|
| To 1927 | Ford Coupe | 1200 | 1300 | ||
| 1928-31 | Ford Coupe | 1300 | 1400 | ||
| 1932-34 | Ford Coupe | 1400 | 1600 | ||
| 1935-38 | Ford Coupe | 1600 | 1700 | ||
| 1939-40 | Ford Coupe | 1700 | 1800 | ||
| 1932-38 | Chev., Mopar Coupe | 1500 | 1550 | ||
| 1939-40 | Chev., Mopar Coupe | 1600 | 1600 | ||
| 1946-48 | Ford | 1700 | 1750 | ||
| 1947-53 | Chev. Pickup | 1950 | 1450 | ||
