Single to dual bowl master cylinder conversion
 

I have a 1965 2+2 and I’m looking to convert the master cylinder from single to double bowl. The car has power drum brakes on all four wheels. It also has 8 lug wheels which I intend to keep. Is there a kit available for the conversion? I’ve tried Ames and In-line Tube to no avail. Suggestions would be appreciated. Thanks.

Just use a 1967 Full size Pontiac master cylinder. Remove the rear brake line from the junction block on the frame, extend the line and connect it to the rear port on new master. Plug the open port on the junction block. Connect the original line to the master to the other available port. Bleed the system and you are done.

I used the Cardone 101328 (10-1328) from Rock Auto when I did my '63 GP.

The original use was for a 67 Bonneville.

K

Thanks to both of you…