As standard practice, I check for play and then adjust every set of front wheel bearings before aligning any 1968-1982. 005 movement as the wheel is moved in and out at the top. If the frame is square, the next thing to do is inspect the suspension and steering components.įront and rear wheel bearings should have a minimal amount of play without adding drag to the spinning hub/wheel assembly. It is possible that the right front spring is weak and shifting the weight rearward. If the right rear is lower, do not assume that the rear spring is the culprit. Jacking up the frame with a floor jack as close to the spring in question is the best policy. Sagging springs will change the suspension geometry. Checking the ride height will help to determine if there are any worn-out springs. Factory ride height is typically 8-1/2 inches at all four points, front and rear on both sides. I also check the ride height between the bottom of the lower valance panel to the ground. Usually, the evidence is there after you find a problem during the measuring process, such as collapsed rails on the control arm or major dents that will tell the tale. Lower control arms can be subjected to some pretty harsh road conditions, for instance. The framework is the next step to getting the front and rear back into square.īent suspension components can also cause the out-of-square condition. With a discrepancy of an inch or more, it is likely that a frontal impact collision occurred sometime in the Corvette’s life, and the frame was pushed back on that corner. The question is- when does this become a major concern? One or more inches will make it tough to compensate for during the alignment. This means that the thrust line is off, and the front tie-rods have been adjusted to compensate for the out-of-square condition. If there is more than a 1/4 inch discrepancy from side to side, there is probably a frame or suspension component issue. Of course, the tires must be equal in diameter and pressure for accurate results. I measure from the center of each tire horizontally, placing the tape measure at the rear of the front tire and the front of the rear tire at the edge of the tread. This is tough to do accurately with the tires in place. Then check the distance between the center of the front and rear spindle on both sides. I measure from the front to the rear at the spindles to check for a square frame. Now it is time to take some measurements.
If there is any clearance at the front or rear of the front tire, you must turn the steering wheel accordingly until the gap is closed. If the wheels are pointed straight ahead, the string should sit flat against the inside and outside of both the front and rear tires. This can be confirmed by placing a string against the tire at the rearmost point and then against the front tire at the very front. First, ensure that the front wheels are pointing straight ahead.
Excessive Positive Camber: Smooth wear on the outer tread with poor high-speed handling.This type of wear is unavoidable because it happens during turning. Cornering: Feathered wear at the outer inch of tread (thin feather-like rubber strips are on the edges).The list below will explain typical tire wear. Performance tire and wheel combinations usually end up with larger rear tires for improved traction rotation is not an option, so you must replace the tires. Tire rotation allows the rotated front tires to flatten the tread as they ride on the rear. The sculpted rearward water channeling design of directional tire treads produces smoother long-term wear.
Individual tread blocks typically found on all-season tire tread designs tend to wear, resulting in noisy tires as we travel down the road. The tire tread design also affects wear patterns. The way the tread wears warns us of potential problems. Tire wear will indicate how the suspension and tires are handling the adjustments. For example, loose wheel bearings and worn parts, front, and rear, will alter the alignment over time. Before doing an alignment, it is crucial to ensure all suspension components are in good shape.
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