Lower Control Arm Checker - WM477 1-1/8" from the center of

1-1/8" from the center of the 5/16" hole to the bottom

11'' Long 1''-8 coarse screw jack

Optimum fin per inch ratio promotes maximum cooling

This keeps the spring straight through travel and allows you to run a WM165BO to let the spring twist through travel as well

This keeps the spring straight through travel and allows you to run a WM165BO-5

Lower Control Arm Checker - WM477 1-1/8" from the center ofThe Wehrs lower control arm checker allows you to take an on the car measurement when the lower is new. This is a big time saver after a crash or one of those tracks with "character". Checker works for stock and fabricated Chevelle and Metric lowers, and also has holes to check Chevelle and Monte Carlo center links.