Power Steering question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Blue68 · 06-19-2002, 04:40 PM

What's the difference between the original pumps for our vehicles and a newer one. As you can see in my sig, I've swapped in a '98 engine with all the accessories from a Chevy truck. I'm curious what the differences as far a pressure goes, might be.

Is it a straight swap functionally? (Other than the hoses) Or is there a pressure/flow difference that I need to be aware of.

Thanks.

Pont · 06-19-2002, 05:24 PM

I don't see where there would be any difference other than pressure hose. Late model uses metric o-ring fittings and earlier (prior to around 1980) uses inverted flare fittings on the pressure hose. Return line shouldn't need anything more than hose clamps. I haven't personally used anything as new as 1998 but I can't imagine that they are that much different than what has been used for so many years.

slam33 · 06-19-2002, 08:57 PM

I tried that swap to a newer pump and couldn't find an adapter to fir the 71 hose to the pump. You might have to have it made

Blue68 · 06-19-2002, 11:20 PM

Thanks guys. I've actually got it installed, had a hose made from the old box side and new pump side. Kinda Dr. Moreau making mutants. I haven't driven it yet, but noticed it turned pretty easy and was mostly curious about the pressures.

06-19-2002, 04:40 PM	#1
Blue68 Registered User Join Date: Apr 2000 Location: Frisco, Tx, USA Posts: 606	Power Steering question What's the difference between the original pumps for our vehicles and a newer one. As you can see in my sig, I've swapped in a '98 engine with all the accessories from a Chevy truck. I'm curious what the differences as far a pressure goes, might be. Is it a straight swap functionally? (Other than the hoses) Or is there a pressure/flow difference that I need to be aware of. Thanks. __________________ http://home.comcast.net/~r.landrum/w...tos.html-.html '68 C-10 LWB, '98 Z-71 350 w/accessories (Serpentine), Edelbrock Performer, Edelbrock 1405 (600cfm) carb, GM HEI, CompCam Extreme 4x4 roller cam, Thorley Headers, Carter Electric Fuel Pump, Vintage Air, 700r4, 3.73, disc brakes and power steering upgrades.

06-19-2002, 05:24 PM	#2
Pont I need another Barley Pop Join Date: Feb 2001 Location: Grants Pass, OR Posts: 1,629	I don't see where there would be any difference other than pressure hose. Late model uses metric o-ring fittings and earlier (prior to around 1980) uses inverted flare fittings on the pressure hose. Return line shouldn't need anything more than hose clamps. I haven't personally used anything as new as 1998 but I can't imagine that they are that much different than what has been used for so many years. __________________ 67 Short Fleet 4x4 04 Honda CRF450R 89 Toyota 4-Runner 34 Ford 2 door sedan - Long term project ---------------------------------------------- There is a very fine line between "hobby" and "mental illness"

06-19-2002, 08:57 PM	#3
slam33 Registered User Join Date: Aug 2001 Location: Long Beach, Ca Posts: 1,432	I tried that swap to a newer pump and couldn't find an adapter to fir the 71 hose to the pump. You might have to have it made __________________ 71 LWB 350/350still working on it but it's going tp be sweet. www.geocities.com/stevemau/slam33page.html " TARGET=_blank>http://www.geocities.com/stevemau/slam33page.html?1004806705410 </A>

06-19-2002, 11:20 PM	#4
Blue68 Registered User Join Date: Apr 2000 Location: Frisco, Tx, USA Posts: 606	Thanks guys. I've actually got it installed, had a hose made from the old box side and new pump side. Kinda Dr. Moreau making mutants. I haven't driven it yet, but noticed it turned pretty easy and was mostly curious about the pressures. __________________ http://home.comcast.net/~r.landrum/w...tos.html-.html '68 C-10 LWB, '98 Z-71 350 w/accessories (Serpentine), Edelbrock Performer, Edelbrock 1405 (600cfm) carb, GM HEI, CompCam Extreme 4x4 roller cam, Thorley Headers, Carter Electric Fuel Pump, Vintage Air, 700r4, 3.73, disc brakes and power steering upgrades.



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