The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - ID '60-'62 POwer Brake Booster Adapter Bracket With A Clutch

**vetnat** · 07-11-2016, 03:35 AM

Hi. Not sure if I should be posting in this thread, but I have a question about brake line sizes. 1961 GMC half ton, converting to disks in the front while converting to power brakes. Using the proportioning valve off the 1979 K10 I got the master cylinder from. I have the original lines from the MC to the proportioning valve, so I can measure the OD's of them.

My question: 3/16 lines to front discs? 1/4 line to rubber hose in back, then 3/16 to wheel cylinders?

07-11-2016, 03:35 AM	#131
vetnat Senior Member Join Date: Jun 2015 Location: Moose Jaw, SK Posts: 510	Re: '60-'62 POwer Brake Booster Adapter Bracket With A Clutch Hi. Not sure if I should be posting in this thread, but I have a question about brake line sizes. 1961 GMC half ton, converting to disks in the front while converting to power brakes. Using the proportioning valve off the 1979 K10 I got the master cylinder from. I have the original lines from the MC to the proportioning valve, so I can measure the OD's of them. My question: 3/16 lines to front discs? 1/4 line to rubber hose in back, then 3/16 to wheel cylinders? __________________ 1961 GMC half ton, short step, Canadian model. Just starting work on it.