Glossary “Jacob’s ladder” Definition:
1). Triangular control linkage to center the rear axle assembly, found on some rear-wheel-drive race cars. 2). High voltage discharge device.
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jam nut
Glossary “jam nut” Definition:
A second nut tightened against a primary nut to prevent it from working loose; used on inner and outer tie-rod adjustment nuts and on may pinion-bearing adjustment nuts.
jamb nut
Glossary “jamb nut” Definition:
A locknut
jacketed gasket
Glossary “jacketed gasket” Definition:
Gasket having metal grommets around bolt and water holes.
jackscrew
Glossary “jackscrew” Definition:
For belt tension adjustment on some vehicles.