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Instruction Sheets for Part Number QA1-R140-170
QA1 1988-98 C1500 Rear Coilover Conversion Systems for 1988-1998 C1500 - R140-170
Part Number: QA1-R140-170
QA1 1988-98 C1500 Rear Coilover Conversion Systems
Suspension Package, Rear Coilover Conversion System, Single Adjustable, 170 lbs./in. Spring Rate, 4-7 in. Drop, Chevy, GMC, Kit
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Estimated Ship Date: Nov 6, 2026 Would you rather pick it up?
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Overview
Brand:
Manufacturer's Part Number:
R140-170
Part Type:
Product Line:
Summit Racing Part Number:
QA1-R140-170
UPC:
806990158932
Third Member Included:
No
Axle Shafts Included:
No
Upper Control Arms Included:
No
Lower Control Arms Included:
No
Air Bags Included:
No
Rear Shocks/Struts Included:
Yes
Rear Shock Type:
Single adjustable coilover
Coilover Springs Included:
Yes
Coilover Spring Rate (lbs/in):
170 lbs./in.
Spring Finish:
Gray/Silver
Suspension Package Finish:
Black powdercoated
Bushings Included:
No
Sway Bar Included:
No
Watts Link Included:
No
Panhard Bar Included:
Yes
Adjustable Panhard Bar Included:
Yes
Adjustable Panhard Bar Type:
On car adjustable
Upper Trailing Arms Included:
No
Adjustable Upper Trailing Arms Included:
No
Lower Trailing Arms Included:
Yes
Adjustable Lower Trailing Arms Included:
Yes
Adjustable Lower Trailing Arms Type:
On car adjustable
Trailing Arm Mount Braces Included:
Yes
Trailing Arm Hardware Included:
Yes
Rotors Included:
No
Calipers Included:
No
Quantity:
Sold as a kit.
Notes:
For 4.000-7.000 in. of rear drop. Fit models with 10-bolt rear differentials only.
QA1 1988-98 C1500 Rear Coilover Conversion Systems
QA1 1988-98 C1500 rear coilover conversion systems are a great upgrade to your C1500 suspension. Each kit comes with QA1's proven adjustable coilover shocks—so you can change the valving to meet your specific needs—along with a variety of spring rate options. These shocks allow for ride height adjustability and are 100 percent dyno-tested and serialized. The QA1 C1500 torque arm suspension with C-notch bracket is manufactured from 12-gauge HSLA steel tubing for increased strength and powdercoated for long-lasting durability. Systems come complete with adjustable instant center, panhard bar, and pinion angle to allow you to adjust the system to your exact needs. This easy bolt-on kit will add more stability and allows for optimum camber adjustment in a lowered truck. Everything needed is included, all the way down to the hardware; no welding or bed removal required.
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Some parts are not legal for use in California or other states with similar laws / regulations
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