Proper wheel alignment is an important part of ensuring that any vehicle drives well while reducing the risk of premature tire wear. Aligning a vehicle adjusts the tires to sit parallel from one another and perpendicular with the ground. Basic adjustments used by alignment professionals include camber, caster and toe. This article will cover alignment specs for a 1998 GMC 1500, two-wheel-drive pickup.
The caster, or the angle of the steering pivot, is different for each front wheel for the 1998 GMC 1500 pickup. The left wheel camber should be adjusted to 3.75 degrees, while the right wheel camber specification is 4.0 degrees. There is an allowable 1-degree variance for each wheel, meaning that an allowable specification for the left wheel may range from 2.75 to 4.75 degrees.
Camber is defined as the angle of the wheel. All camber measurements are taken from the front view of the vehicle and are commonly expressed in degrees. The camber specification on both front wheels of the 1998 GMC 1500 pickup is 0.25 degrees with an allowable variance of plus or minus 0.5 degrees.
Toe measurements define the offset angle from the front of the tire to the rear of the tire. The recommended toe specification for the left and right front wheels of the 1998 GMC 1500 pick up is 0.1 degrees, with an allowable variance of 0.2 degrees per wheel.
