HELP! 11.75" Disc Conversion - Bearings, Seals Etc

Kernel Sanders said
no drilling required!

If you have a or E body spindles your existing ball joints will bolt right up. If you have the 73+B, R, F, M or J spindles you will need some grade 8 nuts and bolts to mate the ball joint to the spindle.

Oh and you mention wanting to do the 11.75 disks and you have 74 pin type caliper and brackets... there are two different sizes of caliper brackets. One size for the 11.75 disks and the more common 10.87 disks. pin and slider type are available in both sizes as well. (Not the calipers are no different for the two sizes but obviously different between pin and slider)

Here is some reading on the subject:
Disk Brake Conversion Info
Spindle Comparison

I just re-read your post... you cant just order the caliper brackets especially for pin type as they are not reproduced.

Yes you will need a disk brake car proportioning valve

Thank you, Colonel, for your assistance. I read your links (thanks). I believe I made a mistake saying I had "sliding pin" type caliper brackets. I meant "sliding" type brackets. Here is the link to the ad for the parts I bought:

[SOLD] - A-Body disk Brake spindle and control arms for converting to big bolt pattern

I wasn't aware that you couldn't just buy the proper caliper brackets new, so I now know I have to search for used cores, such as these in this for sale link, which show "pin type" brackets from a 78 Cordoba. If I read his ad correctly, only pin type brackets were produced for this type rotor? Or were sliding style brackets produced?

[SOLD] - "PIN TYPE" Caliper Mounts For The 11 3/4" Inch Rotors

If I'm not able to locate the proper brackets, I now understand that I will have to stick with the 11" rotor.