Dale, Any shimming needs to be done on the outside radius of the bearings, the race, that the cone runs on.
If you shim the inside it will only serve to force the bearings away from the race. This will in time wreck the bearing. There is a note about this in the FSM in the front axle section.
You will bees much bigger shims than 3/4"
Usually they are available at your local hardware store and are called machine bushings but around here are only available in 2 thicknesses, 12 and 14 gage. It seems the bugger the radius, the larger the gage is what is offered.
Yu may have to order some from McMaster Carr
If you shim the inside it will only serve to force the bearings away from the race. This will in time wreck the bearing. There is a note about this in the FSM in the front axle section.
You will bees much bigger shims than 3/4"
Usually they are available at your local hardware store and are called machine bushings but around here are only available in 2 thicknesses, 12 and 14 gage. It seems the bugger the radius, the larger the gage is what is offered.
Yu may have to order some from McMaster Carr