Suspension and Components› Shocks, Struts, Coil-Overs and Components

QA1 Precision Products, Inc

7379 F10/F150 REAR COILOVER CONVERSION KIT DOUBLE ADJ 250 SPRING RATE SWB

$3,833.28

SKU: Q00B R221-250

In Stock
In Stock
Ships by Jun 10
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The QA1 Rear Coil-Over Conversion Kit includes double adjustable shocks, 250 lb. high travel springs, and all hardware. It features QA1's unique torque arm design for performance and a 4" to 7" drop. The system is highly adjustable with a watts link, torque arm, trailing arms, bracket mounts, and shocks, allowing for independent rebound and compression tuning. Ideal for track or street use, it provides clearance for rear-exiting exhaust and adjustable lower trailing arms for wheel/tire fitment. Parts are powder coated and bolt-in, made in the USA.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandQA1 Precision Products, Inc
Part NumberQ00B R221-250

Videos

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QA1 Suspension Review
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Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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