hi guys

CHEVROLET TRUCK 1958

CAN ANYBODY POINT ME TO A FREE SHOP MANUAL OR SOMETHING LIKE THAT BECAUSE I WANT TO ADJUST THE BEARINGS IN MY REAR AXLE .
I JUST PUT IN A NEW GEAR AND PINION AND IT FITS FINE .
bUT NOW ADJUST THE BEARINGS .
I MEAN I CAN MOVE THE RING FROM LEFT TO RIGHT WITH THE BEARING ADJUSTMENT RINGS .
HOW CAN I FIND THE RIGHT POSITION FROM WICH I CAN START TO ADJUST THE PINION
OR HAS ANYBODY A NICE TIP HOW TO DO IT IN THE RIGHT WAY

THANKS