later model power steering components - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Terry S · 08-22-2003, 11:56 PM

It's pretty much common knowlege that later model power steering components will fit on these trucks if they are all changed as a set (77 & up used o rings on the hoses and a smaller input shaft on the gearbox, which requires a newer style rag joint)

However, I was unaware until today that the power steering pumps & gearboxes for 73-76 1/2 ton 2wd are identical to the older ones.

I just thought that I'd mention it for all of us who have to go looking for junkyard "treasures" occasionally

Longhorn Man · 08-23-2003, 09:28 PM

Are they 100% the same? With the mounting locations being the same, there may be a port aimed in the wrong direction. (Like directly into a bracket)

Terry S · 08-25-2003, 08:51 PM

The gearbox is exactly the same.

I've seen the problem you're refering to with the pump, but when I checked with autozone they show the same pump part nunber all the way up to '76 (they changed over to a different pump with o ring fittings in '77). I just put one of those pumps on my truck and can see how if the belt was long enough that you had to clock it all the way to the outside for tensioning, that you would probably have clearance problems.

Also, just an FYI, if anybody is retrofitting a new system, I'd go with the newer style. The gearbox is the same price as the older one, but the pump is 60.00 bucks less

**Classic Heartbeat** · 08-25-2003, 09:24 PM

The pump is the same, however the housing / fluid resivour is different.
Here is 67-72:

**Classic Heartbeat** · 08-25-2003, 09:25 PM

here is 73 and later:

Longhorn Man · 08-25-2003, 11:50 PM

Ahhh, that is why I was thinking the parts guy was wrong.
Thanks for clearing that up Wes. I normally picture the entire deal when some one says "power steering pump".

crazy longhorn · 08-26-2003, 12:20 AM

Take a look at those 2 pumps......the 1 for 67-72 has a nut holding the pulley on (also keyed shaft). The 73 up pump on my longhorn has the pulley pressed on....something is different on the shaft, from what I have seen. I need to swap the pump on my longhorn(got a leaker).....i think all I have left is the old style pumps, & Im not sure they will mix & get the proper depth on the pulley? has anybody tryed that? crazyL

Longhorn Man · 08-26-2003, 12:27 AM

mannn...I just tossed one that probably woulda worked Al.
I'll try to see if I have any more laying around.
I think I still have one, but if it is the one I am thinking of, it is a metric one.

crazy longhorn · 08-26-2003, 12:39 AM

Yea, I just tossed some stuff too......probably the one I needed:p I hate it when I do that! I think I still have some olds pumps, there might be something to fit with a pulley swap

08-22-2003, 11:56 PM	#1
Terry S Registered User Join Date: Nov 2002 Location: Haysville, KS Posts: 118	later model power steering components It's pretty much common knowlege that later model power steering components will fit on these trucks if they are all changed as a set (77 & up used o rings on the hoses and a smaller input shaft on the gearbox, which requires a newer style rag joint) However, I was unaware until today that the power steering pumps & gearboxes for 73-76 1/2 ton 2wd are identical to the older ones. I just thought that I'd mention it for all of us who have to go looking for junkyard "treasures" occasionally __________________ I can do all things thru Christ, but he evidently doesn't want me to beat that Camaro light to light....

08-25-2003, 08:51 PM	#3
Terry S Registered User Join Date: Nov 2002 Location: Haysville, KS Posts: 118	The gearbox is exactly the same. I've seen the problem you're refering to with the pump, but when I checked with autozone they show the same pump part nunber all the way up to '76 (they changed over to a different pump with o ring fittings in '77). I just put one of those pumps on my truck and can see how if the belt was long enough that you had to clock it all the way to the outside for tensioning, that you would probably have clearance problems. Also, just an FYI, if anybody is retrofitting a new system, I'd go with the newer style. The gearbox is the same price as the older one, but the pump is 60.00 bucks less __________________ I can do all things thru Christ, but he evidently doesn't want me to beat that Camaro light to light....

08-25-2003, 09:24 PM	#4
Classic Heartbeat Project Junkie! Fishing Poor!! Join Date: Dec 1999 Location: Olympia,Wa. 98512 Posts: 10,766	The pump is the same, however the housing / fluid resivour is different. Here is 67-72: __________________ On-line catolog Classic Heartbeat Pickup Parts WEHEPP@comcast.net Call us Toll Free (888) 338-2502 Like Us on Facebook No appointment necessary. 72 BB Chevy Custom Deluxe / Custom Camper 67 I-6 (Soon to be 5.7 LS1) Panel 68 BB Chevy Short Bed 72 6.0 LQ9 Short Bed Chevy 4X4 Olympia's fastest growing truck parts supplier. Olympia's home for Wayward Chevys Last edited by Classic Heartbeat; 10-04-2007 at 07:02 PM.

08-25-2003, 09:25 PM	#5
Classic Heartbeat Project Junkie! Fishing Poor!! Join Date: Dec 1999 Location: Olympia,Wa. 98512 Posts: 10,766	here is 73 and later: __________________ On-line catolog Classic Heartbeat Pickup Parts WEHEPP@comcast.net Call us Toll Free (888) 338-2502 Like Us on Facebook No appointment necessary. 72 BB Chevy Custom Deluxe / Custom Camper 67 I-6 (Soon to be 5.7 LS1) Panel 68 BB Chevy Short Bed 72 6.0 LQ9 Short Bed Chevy 4X4 Olympia's fastest growing truck parts supplier. Olympia's home for Wayward Chevys Last edited by Classic Heartbeat; 10-04-2007 at 07:02 PM.

08-26-2003, 12:20 AM	#7
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,402	Take a look at those 2 pumps......the 1 for 67-72 has a nut holding the pulley on (also keyed shaft). The 73 up pump on my longhorn has the pulley pressed on....something is different on the shaft, from what I have seen. I need to swap the pump on my longhorn(got a leaker).....i think all I have left is the old style pumps, & Im not sure they will mix & get the proper depth on the pulley? has anybody tryed that? crazyL __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

08-23-2003, 09:28 PM	#2
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Are they 100% the same? With the mounting locations being the same, there may be a port aimed in the wrong direction. (Like directly into a bracket)

08-25-2003, 11:50 PM	#6
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Ahhh, that is why I was thinking the parts guy was wrong. Thanks for clearing that up Wes. I normally picture the entire deal when some one says "power steering pump".

08-26-2003, 12:27 AM	#8
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	mannn...I just tossed one that probably woulda worked Al. I'll try to see if I have any more laying around. I think I still have one, but if it is the one I am thinking of, it is a metric one.

08-26-2003, 12:39 AM	#9
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,402	Yea, I just tossed some stuff too......probably the one I needed:p I hate it when I do that! I think I still have some olds pumps, there might be something to fit with a pulley swap __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

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