Firebird 1967-69 Front tubular lower control arms for coil springs (Sold as a pair, part #CTA-79L)

Global West Suspension tubular lower arms for Firebird--model years 1967, 1968, and 1969 are perfect for stock or performance suspension upgrades. Both arms are supplied with ball joints, bump stops, control arm bushings, and an innovative rotating spring cushion. These control arms from Global West also provide additional header tube clearance, which requires no frame modifications and are assembled for your convenience.

Three advantages when choosing a rotating spring pocket:

1. Many people cut the coil spring to obtain a desired ride height. When you cut the spring, the spring will no longer line up in the lower arm or upper frame mount. In some cases, this can cause the spring to make noise rubbing on the edge of the pocket. Global West designed spring cushions to solve the rubbing issue. Rotating the cushion provides a way to re-index the spring.

2. The spring will be loaded properly around the coil. You will notice that most tubular lower control arms have a flat plate that the spring sits on. There really is no index. This places a lot of load at the very end of the coil spring rather than on the full coil. Over time this will fatigue the coil spring and sagging may occur.

3. Ride height adjustments can be made by shimming under the spring pocket.

CTA-79L - These are a fully assembled lower control arms with top of the line Del-a-lum bushings from Global West. In this set, you will receive tubular lower arms, Del-a-lum bushings, rotating spring cushions, lower bump stops, ball joints, and related hardware for ball joints.

New Lower arm Hardware order Part # 4003

For more information, watch the YouTube video above.

The following instruction sheet applies to the following applications:

Part # CTA79-L

LOWER CONTROL ARM INSTALLATION

1.Use the floor jack to raise the car and wheels off the ground.

2.Place the jack stands on appropriate areas of the frame to support the car. Do NOT place the stands under the lower control arms. Lower the car on to the jack stands and remove the floor jack.

3.Remove both front wheels and tires.

4.Remove the nuts, bolts, bushings, washers and spacer tube from the front sway bar end links and set aside.

5.Starting on one side of the care, remove the upper shock mounting nuts, washers and bushing. Remove the shock absorber lower mounting bolts and slowly lower the shock and remove from the bottom of the lower control arm and set aside.

6.Using a coil spring compressor, install the spring compressor inside the coil spring. Using suitable tools compress the spring until pressure is removed off the lower arm.

7.Using suitable tools remove the lower ball joint cotter pin and loosen the slotted hex nut. Only loosen the lower ball joint nut so you can see about a 1/8 of an inch gap between the nut and spindle.

8.Use a ball joint pickle fork and separate the lower ball joint from the brake/spindle assembly. Place the floor jack under the lower ball joint and raise the jack enough to relieve pressure on the lower ball joint. Remove the lower ball joint nut. Slowly lower the jack and swing the spindle out of the way. Allow the upper control/spindle assembly to rest on the bump stop against the frame.

9.Remove the floor jack and coil spring.

10.Loosen and remove the lower control arm pivot bolts and nuts. Remove the lower control arm.

11.Install the new lower control arm using the factory bolts and nuts. Torque both bolts to 70 ft-lbs. Del-a-lum bushings can be tightened with the arm hanging.

12.Place the top of the coil spring in the frame pocket. NOTE: Most springs have a tight wind on one end of the coil spring or they are flat ground. This end goes up to into the frame. Make sure the spring cushion is installed in the tubular lower arm pocket. The spring cushion is furnished with the lower arm and can be rotated to index with the coil spring. With the cushion in position raise the lower control arm up to the spring via the floor jack placed out by outer ball joint. NOTE: Make sure the spring is indexed in the frame.

13.Slowly raise the arm to fit the ball joint into the spindle. Install the castle nut on the ball joint and torque to 90 ft-lbs. Next, tighten the nut to line up the slot in the nut and hole in the ball joint and install a new cotter pin.

14.Install the shock absorber using the existing mounting hardware.

15.Repeat steps 6 through 12 on the other side

16.Install the sway bar end link hardware on both sides but do not torque the bolts until the car is back on the ground. Replace the wheels and tires, raise the car, remove the jack stands and lower the car on to the ground. Torque the sway bar end link bolts to 25 ft-lbs.

17.The lower arm has two locations for the lower arm bump stop. Your frame could have the bump stop location in the front or in the rear of the spring pocket. If the bump stop on the lower arm does not match the frame location, simply unscrew the bump stop from the lower arm and install it in the other location.