I recently installed a disc brake arrangement that may be of interest to anyone wanting to upgrade to hydraulic brakes.
Brake Parts Source
Rotor used on a 1993 Ford Festiva 8.25 diamenter Caliper used on a 2004 Chev Impala (rear wheel)
-weld a 3/8 steel round plate on to the differential yoke and machine the O.D. to fit the I.D. of the brake rotor rotor
-machine or grind out clearance to slip the rotor over top of the yoke
-mark out a bolt pattern (5/16) 4 holes minimum to attach the rotor the the machined yoke flange
-cut a 3/16 plate caliper mounting bracket and 2 gussets
-mount your rotor on to the pinion shaft and clamp the caliper on to the rotor to line it up to weld the supporting plate on to the differential
-use a shim spacer between the welded plate and the caliper to accommodate any alignment issues in the future
I hope this will be of some help.Feel free to contact me if you require more information
http://i169.photobucket.com/albums/u236/mudflinger150/Our%2052/Cat019.jpghttp://i169.photobucket.com/albums/u236/mudflinger150/Our%2052/Brake008.jpghttp://i169.photobucket.com/albums/u236/mudflinger150/Our%2052/Brake009.jpghttp://i169.photobucket.com/albums/u236/mudflinger150/Our%2052/Brake010.jpghttp://i169.photobucket.com/albums/u236/mudflinger150/Our%2052/Brake011.jpghttp://i169.photobucket.com/albums/u236/mudflinger150/Our%2052/Brake021.jpghttp://i169.photobucket.com/albums/u236/mudflinger150/Our%2052/Brake2013.jpghttp://i169.photobucket.com/albums/u236/mudflinger150/Our%2052/Brake1012.jpg