Full Jr dragster bearing kit includes: 4 front wheel bearings, 3 jack shaft bearings, 1 starter nut crank support bearing, 1 clutch side crank support bearing, and 2 rear axle bearings.
Specs on the front wheel bearings are .625" ID x 1.375" OD x .4375" thick. May not work with some motivational tubing front wheels. Please check your wheel's specs before purchasing. If you have a motivational tubing car please measure or read the part number on your jack shaft bearings. Some cars take a 1638 instead of the R12.
