I have all the parts needed to start the disk brake swap on a 70 chevelle ( yeah i know :\... its a 71/72 disk set up. the car is a manual drum car currently. i have the factory lines down to the prop valve. my question is will the lines that currently run to the metering block go right in to the prop valve? or will i need new lines to each caliper? thanks

 

When you say "metering block", do you mean the drum brake distribution block? The lines will need to be rebent to fit, as the combo valve has the outlet ports to the front wheels at different angles than on the distribution block.

 

yep thats the piece. so are the fittings the same also? all my original pieces are nice so trying not to replace unless i have too.

 

The flare nuts for the front lines should be the same for drum and disk. If I remember correctly the rear port is a different size and will require an adapter fitting or replacement of the flare nut on the tube.

 

thanks alot joe, exactly what i needed to know.

 

Joe, can you tell me where I can find an adapter fitting? I've looked everywhere I know and have had no luck. Thanks , Raymond

 

Summit, NAPA, etc. Type "master cylinder adapter fitting" into Google and you'll get a long list.