difference in these power steering pumps?
Thread Starter
Launching!
Joined: May 2014
Posts: 254
Likes: 5
From: Long Island, NY
difference in these power steering pumps? 
I have a 5.3 LM7 from a 99 silverado swapped into my 86 Monte Carlo. The power steering pump was originally the smaller one on the left which uses a remote reservoir. Then I got the ones on the right to get units with reservoirs built on. The black one with reservoir has 3 outlets with the 3rd being towards the top, the silver one on the top only has two ports for inlet / outet. Why does one have 3 and one have two? Which to keep - I would assume the one with the two ports as my gbody steering box has two ports.
Also the truck bracket I have (part # 12567922) will only use the type with the remote reservoir - which LS motor / vehicle did this come as the setup? I need the bracket that can accommodate the pump with built on reservoir which is part # 12554030
Thread Starter
Launching!
Joined: May 2014
Posts: 254
Likes: 5
From: Long Island, NY
Looks like I have to return the one with the extra return port for the hydro boost brakes and keep the one with one 1 pressure and 1 return port for use with my g body steering box.
TECH Addict
Joined: Dec 2017
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Yup, that is precisely it.
The bracket you have there will not work with the old-style pump. Not sure why you'd want to downgrade from the modern pump to the 50s-60s thing from the Stone Age to begin with? You'd be MUCH better off to find a place to mount a remote reservoir and run the Type 2 pump.
The bracket you have there will not work with the old-style pump. Not sure why you'd want to downgrade from the modern pump to the 50s-60s thing from the Stone Age to begin with? You'd be MUCH better off to find a place to mount a remote reservoir and run the Type 2 pump.
Thread Starter
Launching!
Joined: May 2014
Posts: 254
Likes: 5
From: Long Island, NY
Yup, that is precisely it.
The bracket you have there will not work with the old-style pump. Not sure why you'd want to downgrade from the modern pump to the 50s-60s thing from the Stone Age to begin with? You'd be MUCH better off to find a place to mount a remote reservoir and run the Type 2 pump.
The bracket you have there will not work with the old-style pump. Not sure why you'd want to downgrade from the modern pump to the 50s-60s thing from the Stone Age to begin with? You'd be MUCH better off to find a place to mount a remote reservoir and run the Type 2 pump.
TECH Addict
Joined: Dec 2017
Posts: 2,181
Likes: 970
No reservoir to accidentally crush, leaks less, weighs less, just ... altogether better in every way, even if some of the differences are minute. More modern. As if, we've learned a thing or 2 about such activities, as a species, in the half-century or more between the introduction of the 2 designs.
Thread Starter
Launching!
Joined: May 2014
Posts: 254
Likes: 5
From: Long Island, NY
No reservoir to accidentally crush, leaks less, weighs less, just ... altogether better in every way, even if some of the differences are minute. More modern. As if, we've learned a thing or 2 about such activities, as a species, in the half-century or more between the introduction of the 2 designs.
