master cyl and prop valve drum vs disk - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Custom 68 · 04-09-2003, 10:48 AM

Hey all I believe I saw some recent reference on this but wanted to clearify. I recently swapped to disk on my 68 front. I had the power drum drum setup. I didnt change the master cylinder or prop valve. I have only driven a few miles and boy it sure stops great. the truck is apart now for a resto.
Do I need to swap these last items out? It all works very well but I didnt know. I thought I saw a coment regarding a check valve on the master cyl that keeps slight pressure on the drums to over come the springs and this is not on the cyl for the disk fronts. Any help.
Thanks
Dave

04-09-2003, 10:48 AM	#1
Custom 68 Registered User Join Date: Nov 2001 Location: Springfield, MO Posts: 2,928	master cyl and prop valve drum vs disk Hey all I believe I saw some recent reference on this but wanted to clearify. I recently swapped to disk on my 68 front. I had the power drum drum setup. I didnt change the master cylinder or prop valve. I have only driven a few miles and boy it sure stops great. the truck is apart now for a resto. Do I need to swap these last items out? It all works very well but I didnt know. I thought I saw a coment regarding a check valve on the master cyl that keeps slight pressure on the drums to over come the springs and this is not on the cyl for the disk fronts. Any help. Thanks Dave __________________ Dave 1968 Custom Chevy with turbo charged 5.3 gen III 4l80e swap 1967-71 GMC 3/4 ton long step 4x4 (not sure what year exactly?) "A good friend will bail you out of jail...but a true friend will be sitting next to you saying "that was frekin awesome". "If it doesn't fit force it...If it breaks then it needed to be replaced anyway!"



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