gm power steering flow control M2 rack questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Marty68 · 08-07-2023, 08:06 AM

i have 51 GMC M2 sbc power steering original steering wheel. i installed 2 shims to reduce pressure.
The truck drives great. however with the mechanical advantage of the giant steering wheel and the mis matched pressure/volume it is OVER SENSITIVE.
has anyone used the "turn one" flow control valve? it supposedly reduced VOLUME from 3 gpm to 1.3?

Joyridin · 08-07-2023, 09:52 AM

My Turn One pump has one installed to reduce the flow down to 2 gpm. Works fine with a GM Type 2 pump.

chevyguyase · 08-08-2023, 02:14 PM

Are you still using the original front straight axle? A friend had this issue and the valve helped but when he put in 6-7 degree caster shims in that helped a lot. I'm using my original front axle and don't have an issue, but I'm using electric power steering and you can adjust how much assist you want.

Marty68 · 08-15-2023, 02:53 PM

ford power I believe it is a thunderbird

theastronaut · 08-16-2023, 08:09 PM

More caster will add steering effort and feedback and help it track better. What are your current alignment specs?

Marty68 · 08-17-2023, 04:08 PM

I do not know. currently alignment specs. shop that put m2 in aligned it.

08-07-2023, 08:06 AM	#1
Marty68 Registered User Join Date: Nov 2014 Location: west coast, Wi Posts: 534	gm power steering flow control M2 rack questions i have 51 GMC M2 sbc power steering original steering wheel. i installed 2 shims to reduce pressure. The truck drives great. however with the mechanical advantage of the giant steering wheel and the mis matched pressure/volume it is OVER SENSITIVE. has anyone used the "turn one" flow control valve? it supposedly reduced VOLUME from 3 gpm to 1.3? Attached Images

08-07-2023, 09:52 AM	#2
Joyridin Registered User Join Date: Sep 2020 Location: Cleveland, Ohio Posts: 478	Re: gm power steering flow control M2 rack questions My Turn One pump has one installed to reduce the flow down to 2 gpm. Works fine with a GM Type 2 pump.

08-08-2023, 02:14 PM	#3
chevyguyase Registered User Join Date: Aug 2015 Location: st charles missouri Posts: 219	Re: gm power steering flow control M2 rack questions Are you still using the original front straight axle? A friend had this issue and the valve helped but when he put in 6-7 degree caster shims in that helped a lot. I'm using my original front axle and don't have an issue, but I'm using electric power steering and you can adjust how much assist you want.

08-15-2023, 02:53 PM	#4
Marty68 Registered User Join Date: Nov 2014 Location: west coast, Wi Posts: 534	Re: gm power steering flow control M2 rack questions ford power I believe it is a thunderbird

08-16-2023, 08:09 PM	#5
theastronaut Registered User Join Date: May 2011 Location: Anderson SC Posts: 3,868	Re: gm power steering flow control M2 rack questions More caster will add steering effort and feedback and help it track better. What are your current alignment specs? __________________ Project Goldilocks '66 C10 Short Fleet BBW Build '65 C10 Highly Detailed Stock Restoration Thread '78 Camaro Targa Roof Build '55 International Metal/Body/Paint Work '66 F100 Full Rotisserie Restoration '40 Packard 120 Convertible Coupe Restoration How To Restore and Detail an Original Gauge Cluster How To Detail Sand Body Panels, Edges, Corners, Etc

08-17-2023, 04:08 PM	#6
Marty68 Registered User Join Date: Nov 2014 Location: west coast, Wi Posts: 534	Re: gm power steering flow control M2 rack questions I do not know. currently alignment specs. shop that put m2 in aligned it.



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