Master Cylinder question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

60sIron · 10-20-2016, 01:20 AM

I'm doing a disc break conversation on my 69 K20, fronts only. Easy right...... Because in 1971 they came that way. The proportioning valve from CPP appear front inlet and outlets to the front brakes, rear inlet and outlet to the rear. The problem is the master cylinder appears to be the reverse. I'm guessing this is so because the rear MC reservoir is larger than the front one. Larger for addition fluid for calipers. And the pre bent lines on the PP valve fit front to rear and rear to front. Has anyone dealt with this? Seems I need a MC off of something else......... or a stock PP valve (which I can't find)
Thanks

10-20-2016, 01:20 AM	#1
60sIron Registered User Join Date: Nov 2013 Location: Sebastopol California Posts: 151	Master Cylinder question I'm doing a disc break conversation on my 69 K20, fronts only. Easy right...... Because in 1971 they came that way. The proportioning valve from CPP appear front inlet and outlets to the front brakes, rear inlet and outlet to the rear. The problem is the master cylinder appears to be the reverse. I'm guessing this is so because the rear MC reservoir is larger than the front one. Larger for addition fluid for calipers. And the pre bent lines on the PP valve fit front to rear and rear to front. Has anyone dealt with this? Seems I need a MC off of something else......... or a stock PP valve (which I can't find) Thanks



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