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Qa1

QA1 88-98 C1500 Rear Suspension Conversion System - Soft - Single Adjustable (170lbs/in)

SKU: QAPR140-170

Rear Suspension Packages

QAP Susp. Conversion System...

Qa1

QA1 88-98 C1500 Rear Suspension Conversion System - Soft - Single Adjustable (170lbs/in)

SKU: QAPR140-170

Rear Suspension Packages

QAP Susp. Conversion System...

A$6,384.73
LAST ONE! Est Ship 3-5 days. In stock at 3 locations (8 available)

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Description

Rear Suspension Kit - Single Adjustable - 4-7 in Drop - 170 lb/in Spring Rate - Crossmember / Panhard Bar / Shocks / Springs / Trailing Arms - Steel - Black Powder Coat - C1500 - GM Fullsize Truck 1988-98 - Kit

QA1 88-98 C1500 Rear Suspension Conversion System - Soft - Single Adjustable (170lbs/in)

Additional Information

Rear suspension system with up to 7" drop for 88-98 C1500 trucks. Includes single adjustable shocks, high travel springs, and adjustable torque arm, trailing arms, panhard bar, and brace bar.

Part Type

Coilover Adjustable Spring Lowering Kit

Product Overview

Add modern performance to a pickup that was designed for utility ? all without removing the bed of the truck. QA1 engineered a unique design offering 4" to 7" drop that maximizes performance without the inherent binding issues of other 4-link systems. With superior control over suspension movement, you can easily dial in the stance for a smooth ride and great handling characteristics. The systems come with unprecedented adjustability: the panhard bar, torque arm, trailing arms, bracket mounts, and shocks are all adjustable, and they are truly independent of each other, so you don?t have to worry about one adjustment affecting another. Easily bolt in this system ? no welding required. Everything needed is included, all the way down to the hardware. All components in these systems are proudly made in QA1?s Lakeville, Minnesota facility. All QA1 shocks are 100% dyno tested and serialized.

Data: v4.2 - Upd: 2026-11-09 19:42:54

Features

  • Adjustable shock valving options for all driving styles
  • Best-in-class warranty
  • Easy bolt-in install
  • Made in the USA
  • QA1 uniquely engineered to enhance the performance of your vehicle
  • Ride height adjustability

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Product Details

Brand:QA1
Description:QA1 88-98 C1500 Rear Suspension Conversion System - Soft - Single Adjustable (170lbs/in)
Manufacturer Part Number:R140-170
Part Number:qapR140-170
Title:QA1 Coilover Overhaul Kit R140-170
UPC:806990158932

Product Downloads

# Document Type Download
1. Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Data: v2 - Desc: v4.2 - Upd: 2026-11-08 13:43:46

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Qa1
StreetFX SKU qapR140-170
SFX Item ID 4095181
Accounting SKU qap-R140-170
Manufacturer SKU R140-170
Manufacturer UPC 806990158932
Alternative References QA1-R140-170, QA1R140-170, R140-170

Suspension Package, Rear Coilover Conversion System, Single Adjustable, 170 lbs./in. Spring Rate, 4-7 in. Drop, Chevy, GMC, Kit

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.

Product Attributes
BrandQA1
Manufacturer's Part NumberR140-170
Part TypeRear Suspension Packages
Product LineQA1 1988-98 C1500 Rear Coilover Conversion Systems
UPC806990158932
Third Member IncludedNo
Axle Shafts IncludedNo
Upper Control Arms IncludedNo
Lower Control Arms IncludedNo
Air Bags IncludedNo
Rear Shocks/Struts IncludedYes
Rear Shock TypeSingle adjustable coilover
Coilover Springs IncludedYes
Coilover Spring Rate (lbs/in)170 lbs./in.
Spring FinishGray/Silver
Suspension Package FinishBlack powdercoated
Bushings IncludedNo
Sway Bar IncludedNo
Watts Link IncludedNo
Panhard Bar IncludedYes
Adjustable Panhard Bar IncludedYes
Adjustable Panhard Bar TypeOn car adjustable
Upper Trailing Arms IncludedNo
Adjustable Upper Trailing Arms IncludedNo
Lower Trailing Arms IncludedYes
Adjustable Lower Trailing Arms IncludedYes
Adjustable Lower Trailing Arms TypeOn car adjustable
Trailing Arm Mount Braces IncludedYes
Trailing Arm Hardware IncludedYes
Rotors IncludedNo
Calipers IncludedNo
QuantitySold as a kit.
NotesFor 4.000-7.000 in. of rear drop. Fit models with 10-bolt rear differentials only.

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