QA1 high travel coil-over springs use a specially designed high-tensile chrome silicon alloy spring wire that allows fewer coils and a smaller wire diameter. The result is a lighter spring with increased travel from the larger distance between coils, which reduces unsprung weight and lets the suspension react faster. Heat treating and post-processing extend spring life, and the coil design can be compressed to coil-bind without affecting rate or free height. Each spring is ground at both ends and marked with its free length and rate.
Specifications:
- Type: high travel coil-over spring
- Inside diameter: 2-1/2in
- Free length: 9in
- Spring rate: 400 lbs/in
- Finish: black powder coat
- Material: high-tensile chrome silicon alloy spring wire
- Construction: cold wound, heat treated, shot peened
- Ends: squared and ground for straight, consistent seating
- Length and spring rate marked on each spring
- Lifetime guarantee to stay within 2% of original free height and rate under normal use
- Made in the USA
- Sold individually
- Part number: 9HT400B
FAQ
What is the inside diameter of this spring?
This high travel spring has a 2-1/2in inside diameter, which fits QA1 and other 2-1/2in coil-over shock bodies.
What length and spring rate is this spring?
It is a 9in free length spring rated at the pounds-per-inch value shown in the title and specifications.
Is this spring sold individually or in pairs?
QA1 high travel springs are sold individually, so order the quantity needed for the application.
Are QA1 high travel springs covered by a warranty?
Yes. QA1 guarantees its springs for life to remain within 2% of their original free height and rate under normal operating conditions.
