proportioning valve question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

72sub · 01-30-2004, 12:04 AM

my new proportioping valve is a little different than the old one. the new one extends down further in the back and has a nipple covered with a rubber boot. it doesn't look quite like a bleed screw though. anybody know what this is? see pics. thanks.

72sub · 01-30-2004, 12:05 AM

this is the old proportioning valve

teamroper! · 01-30-2004, 12:26 AM

Mine was the same way. They work the same. GM changed part #'s and the long style is correct. It's not a bleed screw, the new style does't have a bleed screw.

01-30-2004, 12:04 AM	#1
72sub Registered User Join Date: Mar 2002 Location: Baton Rouge, Louisiana Posts: 71	proportioning valve question my new proportioping valve is a little different than the old one. the new one extends down further in the back and has a nipple covered with a rubber boot. it doesn't look quite like a bleed screw though. anybody know what this is? see pics. thanks. Attached Images

01-30-2004, 12:05 AM	#2
72sub Registered User Join Date: Mar 2002 Location: Baton Rouge, Louisiana Posts: 71	old valve this is the old proportioning valve Attached Images

01-30-2004, 12:26 AM	#3
teamroper! Registered User Join Date: Nov 2003 Location: northeast alabama Posts: 257	Mine was the same way. They work the same. GM changed part #'s and the long style is correct. It's not a bleed screw, the new style does't have a bleed screw. Last edited by teamroper!; 01-30-2004 at 12:28 AM.

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