How to Measure your Axle and Spring
To Measure your axle for a super slide spring:
To measure your axle for a super slide spring: Measure C/L of spring perch boss to C/L of spring perch boss. Take that measurement and deduct 5". This will give you the size of the spring needed.
To measure your perches for super slide spring: Measure C/L of perch to C/L of perch. Take that measurement and deduct 3". This will give you the size of the spring needed.
How to measure your perch boss: Measure top to bottom where the spring perch mounts, either 2" or 2 1/4".
How to measure your toe-in
Toe-in, toe-out is the angle at which the wheel points when viewed from the top. Toe-in is when the wheels point slightly towards each other at the front, toe-out is when they point away from each other at the front. With rear wheel drive, the leading edges of the tires tend to pull away from each other, so they are set with toe-in to counteract that tendency. In our experience, hot rods with radial tires should be set with 1/8" toe-in. Hot rods with bias-ply tires should be set with 3/16" toe-in. Adjustments can be made by screwing in or out the tie rod ends.
Front End Identification
