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Colorado Olds · February 22nd, 2008, 06:48 AM

After the answers I received above we are seriously considering making the change to dual res MC. Thanks for all the info. Maybe someone can verify this recap:

The MC and booster from a 4 wheel drum '67 F85/Cutlass will work.
The existing pushrod will still be correct for the '67 parts.
I can plug the fourth hole in the existing dist. block, and that plug is easily available.
I can connect the new rear line from the new MC to the existing rear line using a commonly available adapter. I will need to make a few bends.
I should use 3/16 inch line from the new MC to both the front block and to the rear lines, but the fitting for the fronts will need to have the larger fitting on the dist block end - is this line with different fitting sizes commonly available?
The rest of the system needs no change - can anyone confirm that the existing wheel cylinders will not need to be changed? I can have the parts house check the #'s, but maybe someone here knows?

It all seems pretty straight forward to me, assuming the adapters and the line with different size fittings on either end are common.

Does anyone see a problem with using a remanufactured MC as opposed to an all new one? Price diff is significant - $30 vs $90. Of course that goes out the window if they are not generally considered safe.

February 22nd, 2008, 06:48 AM	#8 (permalink)
Colorado Olds Registered User Join Date: Jan 2008 Location: Longmont CO Posts: 37	After the answers I received above we are seriously considering making the change to dual res MC. Thanks for all the info. Maybe someone can verify this recap: The MC and booster from a 4 wheel drum '67 F85/Cutlass will work. The existing pushrod will still be correct for the '67 parts. I can plug the fourth hole in the existing dist. block, and that plug is easily available. I can connect the new rear line from the new MC to the existing rear line using a commonly available adapter. I will need to make a few bends. I should use 3/16 inch line from the new MC to both the front block and to the rear lines, but the fitting for the fronts will need to have the larger fitting on the dist block end - is this line with different fitting sizes commonly available? The rest of the system needs no change - can anyone confirm that the existing wheel cylinders will not need to be changed? I can have the parts house check the #'s, but maybe someone here knows? It all seems pretty straight forward to me, assuming the adapters and the line with different size fittings on either end are common. Does anyone see a problem with using a remanufactured MC as opposed to an all new one? Price diff is significant - $30 vs $90. Of course that goes out the window if they are not generally considered safe. Last edited by Colorado Olds; February 22nd, 2008 at 06:50 AM..