Description

Upgrade your classic Mopar A, B or E body car to a triangulated four-link design with QA1's Mopar rear coilover conversion systems. These QA1 conversion systems will transform the way your classic Mopar launches, handles, and cruises down the road! The great-looking powdercoated components improve performance and save weight—plus, you'll enjoy a much more modern driving feel and improved handling in any setting. Order QA1's Mopar rear coilover conversion system for your application.

Additional features:

* Proven triangulated 4-link design is popular with street/strip machines, pro-touring/road racers and autocross drivers
* Available for Mopar 8 3/4 in., Ford 9 in. and Dana 60 rear axles
* Improved traction during launch
* Easy installation that requires minimal welding
* Supports both standard and inboard spring locations
* Gain greater anti-squat and pinion angle adjustability
* Correct your wheelbase to fit larger wheels and tires
* Has clearance for 3 in. over the axle exhaust
* Single- and double-adjustable shocks eligible for limited lifetime warranty by the manufacturer
* You can add the optional rear sway bar to further reduce body roll during hard launches and cornering
* Made in the USA

Kit Options

This item is available as a full kit.
Select a kit option in the following table if you are looking for this item in a bundle form with all associated components.

Kit option/s:

Thumb	SKU	Kit Title
	qapHK33-CRB4	QA1 Level 3 Full Vehicle Handling Suspension Kits HK33-CRB4 Packages, Handling, Coil Springs, Shocks/Struts, Sway Bars, Control Arms, 2.000-4.000 in. Drop, Dodge, Plymouth, Kit

Data: v4.2 - Upd: 2026-10-15 16:42:24

Features

Specifications

Product Attributes - Brand

QA1

Product Attributes - Manufacturer's Part Number

R354-175

Product Attributes - Part Type

Rear Suspension Packages

Product Attributes - Product Line

QA1 Mopar Rear Coilover Conversion Systems

Product Attributes - UPC

806990164117

Product Attributes - Third Member Included

No

Product Attributes - Axle Shafts Included

No

Product Attributes - Upper Control Arms Included

No

Product Attributes - Lower Control Arms Included

No

Product Attributes - Air Bags Included

No

Product Attributes - Rear Shocks/Struts Included

Yes

Product Attributes - Rear Shock Type

Double adjustable coilover

Product Attributes - Coilover Springs Included

Yes

Product Attributes - Coilover Spring Rate (lbs/in)

175 lbs./in.

Product Attributes - Spring Finish

Black

Product Attributes - Suspension Package Finish

Black powdercoated

Product Attributes - Bushings Included

Yes

Product Attributes - Bushing Material

Spherical bearing

Product Attributes - Sway Bar Included

No

Product Attributes - Watts Link Included

No

Product Attributes - Panhard Bar Included

No

Product Attributes - Adjustable Panhard Bar Included

No

Product Attributes - Upper Trailing Arms Included

Yes

Product Attributes - Adjustable Upper Trailing Arms Included

Yes

Product Attributes - Adjustable Upper Trailing Arms Type

Double adjustable

Product Attributes - Lower Trailing Arms Included

Yes

Product Attributes - Adjustable Lower Trailing Arms Included

Yes

Product Attributes - Adjustable Lower Trailing Arms Type

Single adjustable

Product Attributes - Trailing Arm Mount Braces Included

Yes

Product Attributes - Trailing Arm Hardware Included

Yes

Product Attributes - Rotors Included

No

Product Attributes - Calipers Included

No

Product Attributes - Quantity

Sold as a kit.

Product Attributes - Notes

Kit for use with Mopar 8 3/4 and Ford 9 in. rear differentials. Includes MOD series coilovers. Clearanced to allow a 3.00 in. over the axle exhaust.

Compatibility