Parts guys... need master cylinder HELP!!

Looking for a GM dual res master cylinder for use on the Buick... 1" bore for drum/drum setup, normal GM 3-3/8" mount, and (not sure this matters?) will be mounted to a 8" dual-diaphragm booster. Would be perfect if it had left-side fittings (facing the firewall) to save me the hassle of bending new lines.

Anyone know off-hand which one I should use?

I know the '67 GM truck MC will 'fit' but has right-side fittings and I need someone to confirm that it will work fine with the booster.

The local parts guys refuse to let me dig thru the books, and their computers ain't real search-friendly unless you know the factory application of the MC.

Any help would be greatly appreciated - good karma for you, bro.

Thanks in advance.

 

69 chevy car is what I used on my 59 buick. TP

 

I've been using the truck m/c with stock boosters and the smaller 7 and 8 inch boosters, works good