The Pro-Touring Kit - Stage 4 for the 1968-72 GM A-Body includes tubular arms, front double adjustable coil overs, and rear double adjustable shocks with 2" drop springs for improved handling and a lowered stance. The kit also includes front and rear sway bars, lower tubular trailing arms, and upper adjustable arms for enhanced stability and performance. To complement the suspension upgrades, the kit features 4-wheel big brakes with 13" front disc brakes and 12" rear disc brakes, along with a master cylinder and valve combo for optimal braking efficiency. For a complete package, you can upgrade the rear suspension to coil overs for an additional $279.00.
Classic American muscle cars were born for the drag strip, big V8s, tons of torque, and a focus on straight-line speed. A pro-touring restoration keeps that vintage attitude but re-engineers the car to perform like a modern sports machine. Think precision handling, big-brake confidence, and high-speed stability, all wrapped in timeless Detroit sheet metal. Pro-touring is about performance without compromise. Builders aim for a car that can cruise the highway, dominate the autocross, and look killer at a car show — all in one package.
Classic Look, Modern Feel: CPP’s Ultimate Suspension Upgrade
At Classic Performance Products (CPP), we understand that classic car enthusiasts seek more than just aesthetics—they desire performance, handling, and reliability that match modern standards. That's why we've developed the PTK Pro-Touring Kits, the most comprehensive suspension packages available for classic vehicles.
Yes, all Stage IV Pro Touring Kits include four wheel disc brakes with drilled and slotted rotors. Note: these brakes will require 17” or bigger wheels.
What are the bushings made of? Are the greaseable?
The control arms have self-lubricating bushings and you will not need to grease them, the sway bar bushings will be greaseable.
Will this work with your C5 corvette style spindles for enhanced geometry? Will I need special tie -rod ends and ball joints?
Looking to cure the factory short cummings. For an armature-tour muscle car. Not dedicated track mule.
Yes, our PTK-4 kit will work with our CS spindles with no issues.
What brake booster is recommended to go with this kit?
The kit in question comes with a 1-1/8” bore master cylinder which requires a 9” or 11” booster, can use part numbers 6774srb-oe, 6774srb-u-bl, or 9srbk-u-bl
Does this come with the brake lines and hoses to adapt the old lines to the calipers and master cylinder, or is there a complete line and hoses kit available?
This kit does not include the hard brake lines. It does include the brake hoses that attach to each caliper.
