QA1 R357-170S Four Link Kit with OE Width 9in. | 70-81 GM F Body - MOD Series

QA1 R357-170S Four Link Kit with OE Width 9in. | 70-81 GM F Body - MOD Series

QA1’s one-click solution gives you everything you need to get your 2nd Gen Camaro or Firebird project on the road—fast. We’ve paired our 4-Link Suspension Kit with a custom QA1 9" rear housing for enthusiasts seeking top-tier performance and hassle-free installation. Your time is valuable, so say goodbye to hunting for junkyard rear ends or struggling with endless measurements and mismatched components. Every piece in this package is tested by QA1 to fit the first time. This kit delivers the performance, ride quality, and adjustability you need to handle serious power and aggressive driving— without the frustration of piecing things together.

ELIMNATE YOUR LEAF SPRINGS

Ditch your leaf springs for QA1 MOD Series Coilovers, triangulated 4-link suspension and an all-new 9" rear end. QA1 4-link kits were fully engineered to provide ride height, ride quality and instant center adjustability. Whether you're after a lowered, aggressive look or need clearance for wider wheels and tires, QA1 systems deliver.

EASY INSTALLATION

QA1 is committed to delivering products that make upgrading your car as simple as possible. Our 4-Link kits with 9’’ housing is designed for a bolt-on installation, eliminating the need for custom fabrication.

PERFORMANCE 9” HOUSING

Key Features:

• Fabricated Center Section engineered for maximum strength and durability.
• Formed Trailing Arm Brackets reduce flex under high loads, ensuring your suspension remains rigid.
• Heavy-Duty 3” OD, ¼” Wall Axle Tubes provide the durability needed for high-performance applications.
• 31-Spline 1541H Alloy Axles support up to 650HP, with the housing handling up to 800HP.
• Durable Semi-Gloss Powder coat Finish offers long-lasting protection and a clean, sleek look.
• Drain Plug, Fill Plug, and Jack Pad come standard to make service a breeze.
• Includes T-bolts and Housing Studs for assembling axle shafts and installing third members
• High-quality Roller Bearings for smooth operation and long-lasting reliability

Helpful Specifications:

• 61-1/8” factory wheel mounting surface width for easy wheel and tire fitment
• Big Ford “New Style Torino Flanges” with 2.5” axle offset for easy brake compatibility
• 5x4-3/4” factory bolt pattern, standard fitment and a wide range of wheel options
• ½” x 3” wheel studs for better fit with alloy wheels
• 2.770” hub diameter
• Requires third member for Ford 9” housings with 31 spline axles

ULTIMATE SHOCK PEFORMANCE

QA1 MOD Shocks provide the ultimate in tunability and performance.  With four-way adjustable valving, remote nitrogen canisters, and huge dampening forces, QA1 MOD shocks deliver in any driving scenario.

FEATURES AND BENEFITS

• Complete Kit: Includes QA1’s 9" rear housing and triangulated 4-link, designed for a perfect fit
• Easy Serviceability: Convenient access with a dedicated fill port, drain plug, vent port, and jack plate for easy rear-end maintenance.
• QA1 MOD Shocks: Fine-tune your ride height and handling for a perfect stance and performance in any driving scenario.
• Easy Installation: Bolt-in design with minimal welding required, reducing install time and effort.

FITMENT NOTES

• Verify wheel and tire fitment on vehicle prior to installation.
• Center section (3^rd member) not included
• Stock width housing recommended for use with stock wheel tubs
• Welding required.
• QA1 Subframe Connectors strongly recommended.
• May require exhaust modification.