Front Drum to Disc Brake HELP

Hey Justin, Mike here:

Yes, the SSBC kit needs 10" drum spindles, not disk spindles. Those drum spindles I gave to you were the original small ball joint one for 72 and earlier - 10" drum. As you have found out the hard way, you have 73+ large ball joints and the supplied spindles will not work with the large UCA BJs.

OPTION #1: (this is the most simple for an "off the shelf" job with all Ma Mopar parts. Shop manuals will make assy. a breeze!

To do an OEM type drum to disk conversion on your 70 (that already has 73+ Upper control arms; You will need the following parts for a 73+ Disk brake setup:

1) Drum-Disk Prop. valve (In-line tube has them new for $92)
2) Rotors: machine originals or new
3) Bearings, grease seal and dust cap (set for each side)
4) Brakes pads (D84 is the part number)
5) Drum-Disk Master cylinder - non-power (101627)
6) Front caliper hoses (Raybestos BH36755)
7) Calipers (4067/4068 for a 73) OR (4102/4103 for a 78 Aspen - larger bore)
8) Rotor dust shields (optional - used or repop ; 3 screws per side)
9) Spindles: A slider type for 10.87" rotors OR F/J/M (OK...please don't start the "you can't use FJMs on an A body" rant) some say yes - some say no.
10) Lower Ball Joints (Moog K781/K783)
11) LBJ bolts. 4 needed; theses are the through bolts and nuts that hold the LBJ to the disk spindles. make sure you take them if you find a donor car!

I have rotors / pads / hoses / shields if you need them.

Option #2:

1) Prep and install original OEM small BJ UCAs. I have a good used set.
2) Use the 72 and earlier LBJs, for the Drum braked car. They will mate to your existing tie-rod ends.
3) follow the rest of the instructions from SSBC for the master cylinder...etc.

Option #3.

1) Take the 10" spindles to a machine shop and see if they will machine the SBJ taper to a LBJ taper. Not sure of the cost to do this.
2) Continue on with the SSBC install.

Shoot me a PM. I put the word out you are looking for spindles.
Call me if you wish...you have my number.....
Mike