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1968-74 Nova Category 5

 

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Global West offers a complete front suspension system for 1967-69 Camaro / Firebirds. The new kit, part number CNR-79 is one of the latest suspension NEGATIVE ROLL SYSTEMS we have released. (Negative roll) refers to the tilt of the tire as it goes up into the fender well during bumps and cornering. Negative means the top of the tire tilts in towards the motor. Positive means the top of the tire tilts out of the fender.) Global West has pioneered and developed street able negative camber gain suspensions for production cars since the early 80's. The first system  released for 64-73 Mustangs was developed in 1980. The second system was released in late1981, early 82 for 64-72 A-bodies. In fact, both kits CNR-40 AND CNR-12 are still the hottest negative roll systems on the market for Chevelles, GTOs, Skylark's, etc.  The next system CNR-88 , was released in 1986 for Chevelles, Grand National's and other G bodies. In 1998, CNR-79's was released. CNR-79 fit's 1967-69 Camaro, Firebird, 68-74 Nova, and Ventura, etc. CNR-79 is designed for use on or off the track. Yes! this is street able without the harsh ride. In fact, we placed this system on street cars for 2 years prior to release. Since all of our negative roll systems have corrected suspension geometry, we can use soft springs on the front end and still achieve outstanding cornering ability. For further information see GM NEGATIVE ROLL SYSTEMS.

In order to make negative roll work, we had to redesign the front suspension. This involved tubular upper control arms, special spindles, and a new steering system. By the time we finished making everything work correctly, we ended up with 4 items that were still stock. They are the idler arm, pitman arm, and both lower control arms. The rest of the suspension can be put in a box. Note: You could use your old springs, shocks, and sway bar. However, considering what this system is designed to do that would be a shame.

This is what the system comes with:

Special tall modified spindles: Spindles are required for 2 main reasons.

  1. Proper negative camber gain for this particular car requires a taller spindle. The stock spindle is too
    short even with dropping the upper control arm pivot 1-inch. Negative camber gain is still not
    generated.

  2. After we found the correct height spindle, the standard brakes that fit that spindle would not work.
    This would have been too easy, just doing a spindle change. The brake calipers hit the sway bar and
    frame during steering input. So we redesigned the brakes. This required special billet hubs and
    relocating  the brake caliper. Well !!! Since we are going to design brakes. Let's make them BIG. So, We designed the system to handle 11.75", 12.00", or 13.00" diameter, 1-1/4 inch wide rotors, with four piston calipers. The size of the rotors will depend on your rim size (see chart next page).
    Note: There are no spindles in production that provide the criteria necessary for proper fit without the modifications we do.

Billet hubs:    Global West hubs are made of billet aluminum. They feature a hub centric brake hat and rotor indexing. This means that the hat and rotor assembly index on the hub, not the wheel studs. Our hubs are designed for street or racing applications. Billet bearing caps are also included.

The photo to the left shows a hub being machined for the wheel studs. To the right shows completed hubs waiting to go to get hard anodize.

 

 

Hub bearings, races and seals:

Wilwood aluminum hats: ( Note: We designed our hubs so the aluminum hats register on the hub not on the wheel studs).

Coleman Stock car rotors: The choices are:

  1. 11.75 diameter ( width 1-1/4" ) minimum wheel size 15-inch

  2. 12.20 diameter ( width 1-1/4") minimum wheel size 16-inch

  3. 13.00 diameter ( width 1-1/4" ) minimum wheel size 17-inch

Wilwood 4 piston calipers:  Super lite 2's (optional billet calipers).

Wilwood brake pads : Polymatrix Black. This pad is designed for pavement applications.

Wilwood adjustable proportioning valve

Braided steel lines with fittings for the calipers and hard line:

 

 

Global West Tubular upper control arms: The upper arms are a different length than stock. They also have more positive caster built into them. Positive caster provides straight line stability plus promotes proper camber gain during cornering. The upper arms are furnished assembled with offset upper control arm shafts, Del-A-Lum bushings, upper ball joints, and upper control arm bump stops.wpe18.jpg (8751 bytes)

Tubular lower control arms for standard spring or coil-over applications. The lower arm on the right is for a stock type coil spring.

Special center link: As you can imagine, if you change one thing you
change another. A custom built center link is required for correcting
bump steer. Bump steer is a condition that occurs when the suspension
geometry and the steering geometry operate on different angles causing
the car to steer by itself. We addressed this issue making the steering
better than stock.

 

Inner and outer tie rods with tubular tie rod sleeves: Obviously with all the changes the tie rods are no
exception. Both inner and outer are changed for correcting bumpsteer along with the center link. The tubular tie rod sleeves are for strength.

The following chart pertains to 1968-74 Nova using Kit number
CNR-79 (Negative Roll System).

Year/model Street Performance Comp

1968-74Nova Small Block 

S-505 S-601
1968-74 Nova Big Block S-505 S-602

Part # S-505 $159.95

Part # S-601 $166.61

Part # S-602 $166.61

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