WEll hear goes the easiest way would be to use the basic kit which includes caliper mounting brackets attaching hardware,and bearing adapters where required, they are around $125.00 and I believe there are two or three suppliers. To no avail I have not received a decent answer from any of them concerning specific measurments.That is why I can not promote their product here.The thing you must remember is that the od of your spindle is 1.2815 and no-one makes a bearing with an ID of such, theres your need for the bearing adapter you can go this way and keep your original hubs.knock the drums off the hub and install disc.....Then there is the way I am going with mine but that is beacause I am going with four wheel disc brake setup. In my case I salvaged the complete brakeing system out of a wrecked automobile, in this case a BMW 528-I.My front hubs ,rotor and callipers are out of a camaro with INNER bearing LM=67048 a common bearing measuring id of 1.250 and LM=11949 on the OUTER bearing measuring id of .7500. your spindal on early chevs and vettes is outer .7500 and inner 1.2815. therefore the spindal has to be taken to a machine shop and taken down to 1.2500. best thing to do is talk to a machinest , and purchase this INSIDE bearing LM -67048 and take that bearing and race with your spindle to the machine shop..THE MAN THERE WILL KNOW WHAT TO DO. When done you will find that 64 chevelles and up also camaro 10-1/2 inch rotors and also 11- inch rotors,firbirds and tempest for starters just make sure they have these outer and inner numbers they are plentiful and cheap and easy to instal. You might have to alter your bracket or drill a new cotter pin hole.PS USE A 1/8 CARBIDE TIPPED DRILLBIT. Oh yes for you diehards if at any time you wish to change back to ball-bearings all one would have to do, is have an adapter made with an ID of 1.2500 with an OD of the inside measurment of your old ball bearing adapter. will let you know when I have mine all together MOOSEMAN ANY QUESTIONS JUST POST THEM
[Edited by wayne on 02-21-2001 at 11:16 PM]