G-Comp Universal Front Suspension Kit

Speedway Motors’ G-Comp line of suspension parts is engineered for performance, strength, and value. This Universal G-Comp front suspension kit is a complete weld in front subframe assembly for converting almost any vehicle to modern-day suspension geometry and are available for 56″, 58″, 60” and 62” track widths. This Pro-Touring style front end is an all-new performance IFS designed around Speedway’s exclusive G-Comp spindles and is engineered for optimum handling and vastly improved control. G-Comp subframe kits will turn your car into a real G-machine, ready to take on the autocross, road course, or the street.

Featured on Season 4 of Car Masters: Rust to Riches; the Zephyr Gotham Garage Build

The G-Comp Advantage:

• Power rack and pinion steering
• Overall increased camber gain for better handling
• Camber adjustment using shim plates
• Caster adjustment using inserts
• Kit comes with a 1-1/4″ O.D. splined sway bar
• Weld-on subframes available for 56″, 58″, 60” and 62” track width
• Included Unser control arm provides an additional 3° caster over standard G-Comp arm
• Inverted ball joint on upper control arm allows use of deeper backspace wheels and tighter turning angle
• Lower control arm has a recessed front strut to increase tire clearance
• Designed to use C6 Corvette style brake kits

Recommended Brake Kits for G-Comp Series Front Suspensions:

• Economy Disc Brake Kit
• D Wilwood 13″ Brake Kit
• DR Wilwood 13″ Brake Kit

Recommended Coil-Over Shocks and Springs for G-Comp Series Front Suspensions: (2 of Each Required)

• AFCO Street/Pro-Touring Coilover Shock (non-adjustable)
• AFCO Pro-Touring/Race Coilover Shock (single adjustable)
• AFCO Max Performance/Race Coilover Shock (double adjustable)
• Afco 8″ Chrome Coilover Spring

Driver Notes:

G-Comp kits will test your drive train! Your power will be hooked to the ground, so be prepared!

• Depending on how and where you drive, your car can create huge G forces. You may need to Dry Sump your engine so it won’t starve for oil.
• An oil pressure light is a MUST, as our expert drivers can attest, time is limited during competition to watch the gauges.
• At least one day professional driving class is recommended for cars equipped with engines exceeding 500HP.

Read about the G-Comp suspension packages in action on our 1965 Chevy II, as featured in this article from Super Chevy Magazine; A 1965 Chevrolet Nova that Crushes it on the Track!

This does not work with BBC engines without modification

• Instructions for 56″ Track Width(PDF)

• Instructions for 58″ Track Width(PDF)

• Instructions for 60″ Track Width(PDF)

• Instructions for 62″ Track Width(PDF)

• Only available with 5 on 4 ¾ bolt pattern (GM Pattern).
• Uses standard 3/4″-36 spline Steering input shaft U-joint
• The 56″ and 58″ subframes are 29-3/4″ outside of rails and use 2″ x 3″ x .120″ wall tube
• The 60″ and 62″ subframes are 33-3/4″ outside of rails and use 2″ x 3″ x .120″ wall tube
• These frame rail dimensions are consistent for this 3502000 G-Comp systems and the Unser Edition subframes.