My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

QA1 DD501-12110 Pro Rear Weld-In Double Adjustable Coilover Kit 110 lb/in Spring

Manufacturer

Picture for manufacturer QA1 Precision Products

Part Number

DD501-12110
11 reviews
Sale Price

$1,052.95

Estimated ship date Monday, November 23

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The QA1 DD501-12110 is a Pro Rear Weld-In Coilover Kit featuring double adjustable Proma Star shocks and 110 lb/in linear rate springs, designed for 3.00-inch diameter axle tubes. This complete kit is ideal for drag racing, street performance, and street rod builds where a custom coilover rear suspension upgrade is desired.

The double adjustable valving provides independent compression and rebound tuning with evenly spaced settings throughout the adjustment range, so there are no harsh jumps between clicks. This allows precise suspension tuning for street, strip, or track use. The lightweight aluminum construction keeps unsprung weight low while the height-adjustable spring perch lets you dial in your preferred stance.

Installation requires welding. The included tubular upper shock mount measures 1-5/8" diameter x .095 wall x 40" long. A QA1 spanner wrench (P/N T114W or T115W, sold separately) is required for ride height adjustment.

Key Features:

  • Double adjustable Proma Star shocks — independent compression & rebound tuning
  • 110 lb/in linear rate springs (12-inch length)
  • Designed for 3.00" diameter axle tubes
  • Lightweight aluminum shock body construction
  • Ride height adjustable spring perch
  • Precision machined aluminum piston with PTFE piston band
  • 5/8" centerless ground, hard chrome plated solid piston rod
  • Three-step sealing system
  • 100% dyno tested and serialized
  • Revalveable and rebuildable by QA1 factory or authorized service centers
  • Made in the USA
  • Backed by QA1 Limited Lifetime Warranty (registration required at QA1.net/warranty)

Kit Includes:

  • (2) QA1 Proma Star Double Adjustable Coilover Shocks
  • (2) 110 lb/in Linear Rate Springs
  • All mounting hardware and brackets
  • Tubular upper shock mount (1-5/8" dia. x .095 wall x 40" long)

Installation Notes: Welding is required. Spanner wrench P/N T114W or T115W is required for adjustment (sold separately). Optional thrust bearing kit P/N 7888-109 is available separately.

Products specifications

Linear Rate Springs

1100-1300 lbs (12-110 Springs)

Prop 65

WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov

Title

QA1 Shock Absorber and Coil Spring Assembly DD501-12110

Quick and reasonable!

Great price!

Great

Easy!

Quick and easy to order. Unsure of how soon I will receive shipment.

Great thanks !!!

Impressed with selection and price. Saved over traditional e-tailers and they shipped within 24 hours. Excited to recommend AUTOPLICITY.

prices are good. After I paid it took them 5 days to ship the order. Communication is not very good with autoplicity.

quick and easy

Had what I wanted, and shipped it quickly! Can't wait to install my bumper cover tomorrow!

ffff

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy