81 c10 power steering box questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

k1rodeoboater · 01-20-2011, 10:36 AM

Hey guys I own a 66 c10 and want to swap over to disc in the front and power steering. I know the brakes shouldn't be an issue, but the power steering box on this truck has me scratching my head. The guy who had it said it was originally a diesel, and he swapped it for a 350. However the power steering wasn't run off a pump on the motor, but off of the brake booster. Is this the same power steering pump used on this truck as a normal C10
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D13 · 01-20-2011, 03:34 PM

Other way around. The brake system was a hydoboost, with assist provided by power steering pump pressure. The steering box is the same as on any other truck. The diesel pump would have had slightly different hose connections, usually 1 more return line and/or a remote fill pipe. Pump guts are basically the same.

If you have a vacuum brake booster now use a regular power steering pump. if you have a hydroboost use the pump and lines off a 1 ton or diesel that origianlly was hydraboost equipped. Be sure the hose routing is correct (i.e. pressure to the correct side of the gear and the booster).

k1rodeoboater · 01-20-2011, 07:43 PM

Sweet thanks for the info. I've got a vac brake boost I will eventually be installing, so in that case I'll need to get a pump. A pump off of a 350SBC would work fine then right?

01-20-2011, 10:36 AM	#1
k1rodeoboater Registered User Join Date: Nov 2010 Location: Fayetteville NC Posts: 752	81 c10 power steering box questions Hey guys I own a 66 c10 and want to swap over to disc in the front and power steering. I know the brakes shouldn't be an issue, but the power steering box on this truck has me scratching my head. The guy who had it said it was originally a diesel, and he swapped it for a 350. However the power steering wasn't run off a pump on the motor, but off of the brake booster. Is this the same power steering pump used on this truck as a normal C10 Posted via Mobile Device

01-20-2011, 03:34 PM	#2
D13 Registered User Join Date: Feb 2007 Location: Memphis MI Posts: 1,851	Re: 81 c10 power steering box questions Other way around. The brake system was a hydoboost, with assist provided by power steering pump pressure. The steering box is the same as on any other truck. The diesel pump would have had slightly different hose connections, usually 1 more return line and/or a remote fill pipe. Pump guts are basically the same. If you have a vacuum brake booster now use a regular power steering pump. if you have a hydroboost use the pump and lines off a 1 ton or diesel that origianlly was hydraboost equipped. Be sure the hose routing is correct (i.e. pressure to the correct side of the gear and the booster). __________________ 1987 2 ton 1982 250/TH350 beater in progress Dad's 1981 3/4 L6 3 on tree posi and no options, awaiting restoration or scrapping Plus a mess o' tractors

01-20-2011, 07:43 PM	#3
k1rodeoboater Registered User Join Date: Nov 2010 Location: Fayetteville NC Posts: 752	Re: 81 c10 power steering box questions Sweet thanks for the info. I've got a vac brake boost I will eventually be installing, so in that case I'll need to get a pump. A pump off of a 350SBC would work fine then right?



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