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#1058907 - 09/03/18 12:02 AM Power steering gear/pump  
Joined: Jan 2008
Posts: 1,200
FinallySS Offline
10+ Year
FinallySS  Offline
10+ Year
Member

Joined: Jan 2008
Posts: 1,200
Nice Sunny Hawaii
Aloha guys.

I recently went to local NAPA store to look for power steering pump because mine is leaking ever so slowly. At the same time, I'm planning to replace the low side hose.

Anyway, the local NAPA guy told me they only have listing for V8 or V6. Does Non-SS have same pump/steering gear with SS? After I was told this, jumped on the web and found that most of the site I go to only have listing for V8 and V6. Is the stock supply for SS pump for rebuild is gone? Or is it because too much hassle to differentiate Non-SS with SS pump? Is there a source for SS pump at all?

Thanks for your help guys.


1986 Silver MCSS - Poly bushing and Hotchkis spring w/Bilstein, Posi w/3.73, MSD 6-AL, E-Brock 600cfm, Aluminum 2-row radiator.
1986 Black MCSS - R.I.P............Finally.
#1058911 - 09/03/18 03:10 AM Re: Power steering gear/pump [Re: FinallySS]  
Joined: Dec 1999
Posts: 11,911
86ttop Offline
20+ Year
86ttop  Offline
20+ Year
Member

Joined: Dec 1999
Posts: 11,911
Brooksville, Fl
I know the SS is a different box than the base V8 cars, it's high effort and a better ratio, don't know about the steering pump, maybe Bernie(SickSpeedMonte)might know, good luck!!


Leo Paugh
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POW*MIA
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If things improve with age, I must be approaching magnificent. thumbs
#1058916 - 09/03/18 09:22 AM Re: Power steering gear/pump [Re: FinallySS]  
Joined: May 2009
Posts: 2,012
Richie Cat Offline
10+ Year
Richie Cat  Offline
10+ Year
Member

Joined: May 2009
Posts: 2,012
Lake Ronkonkoma, N.Y.
I installed an SS steering box in 83 SC. The car came with a V6. I used that pump with the box and have no issues.


83 SC, 355 w/TPI
#1058932 - 09/04/18 03:33 AM Re: Power steering gear/pump [Re: FinallySS]  
Joined: Jan 2000
Posts: 5,478
mmc427ss Offline
20+ Year
mmc427ss  Offline
20+ Year
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Joined: Jan 2000
Posts: 5,478
Pottstown, Pa
The biggest differences in the Saginaw P/S pumps of the 80s cars is the valving in the high pressure outlet in the back of the pump. The internals otherwise are the same through the 80s pumps. A V6 car with 16:1 ratio box may have less pressure to the steering box, an SS 12:1 box may be a little higher pressure.

When I swapped in a F-body high effort 12:1 XH box years ago I changed out the valving to increase pressure and flow a little to overcome a steering lag at low engine speed.
Here's a little info on that.
http://jeffd.50megs.com/Pump_valve_mod_page.htm
Bob

#1058933 - 09/04/18 07:10 AM Re: Power steering gear/pump [Re: FinallySS]  
Joined: Jan 2008
Posts: 1,200
FinallySS Offline
10+ Year
FinallySS  Offline
10+ Year
Member

Joined: Jan 2008
Posts: 1,200
Nice Sunny Hawaii
Thanks for all the input guys.

Yeah, I thought the steering gear was different, but they list same pump, so I just wanted to double check.

Bob, I tried to look up for the parts needed, but the fitting is no longer available, so I have no choice but to drill the original out. Spring seems to be available still, so I definitely will get the spring. I need to look for drill bit as well. Wish me luck guys.


1986 Silver MCSS - Poly bushing and Hotchkis spring w/Bilstein, Posi w/3.73, MSD 6-AL, E-Brock 600cfm, Aluminum 2-row radiator.
1986 Black MCSS - R.I.P............Finally.
#1058984 - 09/07/18 04:50 AM Re: Power steering gear/pump [Re: FinallySS]  
Joined: Jan 2000
Posts: 5,478
mmc427ss Offline
20+ Year
mmc427ss  Offline
20+ Year
Member

Joined: Jan 2000
Posts: 5,478
Pottstown, Pa
Yep lots of parts from GM have been discontinued. That was like 2001 when that pump valve mod was done to the stock pump. In 07 pulled the pump apart for painting with new seals, just a cleaning was done internally, The car and pump now have 165K on them and the pump still performs perfectly.
The F-body XH steering box finally starting leaking at the input shaft seal, then later the lower seal, bought a rebuild kit, actually two, the XH and the YA kit content is slightly different, needed a part of two out of one kit. At that same time installed an under the rad P/S cooler from the 3rd Gen F, not a bolt in project.

Also only run GM power steering fluid in that system, got that recommendation from a Saginaw tech.
Make sure you use P/S fluid compatible hose on the return line.
If you buy a pulley remove/installer buy a good one, made that mistake once.
For the high pressure hose run one for the non A/C G-body, Edelmann 71074 to eliminate the A/C cutoff switch and it's hardline Tee from the steering box.

When it comes to Saginaw pumps from about 80 into the 90s the pumps themselves are internally the same. The outlet valve position are the same, return ports tubes on the hosing vary, pulleys (V or serpentine), and some times the height and angle of the filler caps vary. Just another one of those parts GM made fit a zillion cars.
Bob


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