What size hose is required? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Steve Cole · 07-19-2013, 01:07 PM

What size hose/line are you running to the (TH400) tranny vacuum modulator? The nipple on my modulator looks like it takes about a 1/8" - 3/16" hose. I wanted to use a 90 degree fitting coming out of my manifold (3/8" NPT - 1/8" or 3/16" nipple but the smallest I have found is 1/4" nipple and only in straight, not 90.

I was considering running a hard line with a short section of rubber on both ends but there is no good place to clamp the line along the way.

Thanks,

07-19-2013, 01:07 PM	#1
Steve Cole Registered User Join Date: May 2012 Location: Faith,NC Posts: 1,626	What size hose is required? What size hose/line are you running to the (TH400) tranny vacuum modulator? The nipple on my modulator looks like it takes about a 1/8" - 3/16" hose. I wanted to use a 90 degree fitting coming out of my manifold (3/8" NPT - 1/8" or 3/16" nipple but the smallest I have found is 1/4" nipple and only in straight, not 90. I was considering running a hard line with a short section of rubber on both ends but there is no good place to clamp the line along the way. Thanks,



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