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Instruction Sheets for Part Number QA1-R158-170
QA1 Four Link Conversion Kits for 1968 CHEVY II, 1969-1972 NOVA, 1971-1972 VENTURA - R158-170
Part Number: QA1-R158-170
REAR SUSPENSION, 68-72 GM X-BODY, 68-72 GM X-BODY, S-ADJ, 12-170
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Estimated Ship Date: Oct 23, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
R158-170
Part Type:
Product Line:
Summit Racing Part Number:
QA1-R158-170
UPC:
806990176004
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:
Yes
Bushing Material:
Spherical bearing
Bushing Color:
Natural
Sway Bar Included:
No
Watts Link Included:
No
Panhard Bar Included:
No
Adjustable Panhard Bar Included:
No
Upper Trailing Arms Included:
Yes
Adjustable Upper Trailing Arms Included:
Yes
Adjustable Upper Trailing Arms Type:
Double adjustable
Lower Trailing Arms Included:
Yes
Adjustable Lower Trailing Arms Included:
Yes
Adjustable Lower Trailing Arms Type:
Single adjustable
Trailing Arm Mount Braces Included:
Yes
Trailing Arm Hardware Included:
Yes
Rotors Included:
No
Calipers Included:
No
Quantity:
Sold as a kit.
QA1 Four Link Conversion Kits
Ditch those clunky leaf springs and take control of your rear suspension with QA1's coilovers and triangulated 4-link conversion kits. This upgrade improves ride quality, enhances handling performance, and enables you to dial in the perfect stance. With the added benefit of accommodating wider wheels and tires, this kit is the ideal solution for your car.
QA1's 4-link conversion kits deliver handling control without compromising your daily comfort. Perfect for both street and track use, adjustable shocks are famous for their tunability, giving you exceptional handling and control and finer control over your suspension. Available with single adjustable, double adjustable, or MOD series shocks.
Thoughtful design meets effortless installation requiring minimal welding. You'll experience a painless installation and setup process, where adjusting ride height, pinion angle, or wheelbase is as simple as a few tweaks – no link removal required. No modifications to floor pan required.
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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