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#1 |
Registered User
Join Date: Jan 2010
Location: Ontario
Posts: 400
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Hi all,
have a problem, the seal in the gear box is leaking bad and I need to replace it, anyone here replaced theirs. Can I get this seal alone or is there a rebuild kit that I would have to get, any help would be great, hopefully the pic I post is visible.
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68 ![]() My other ride ,,, 07 Streetglide.. |
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#2 |
Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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Re: power steer gear box
The seals are available as a kit from NAPA.
Jim
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1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC |
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#3 |
Old Skool Club
![]() Join Date: Jun 2001
Location: Benton, AR "The Heart of Arkansas"
Posts: 10,880
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Re: power steer gear box
Good info. Mine is setting on the bench at my sons' house....so I'll be checking it out before it gets painted and goes back onto the chassis.
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Member Nr. 2770 '96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed. '69 C-10 SWB; 350/TH400 - in limbo The older I get, the better I was. |
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#4 |
Active Member
![]() Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: power steer gear box
Just replaced mine a few weeks ago. It's not hard to do with the right tools.
I removed the gear box on mine since I had to replace the steering shaft seal and the pitman shaft seal on mine. The biggest problem you will encounter is removing the old seals. They're recessed into the shaft and you can't reach them with a simple seal puller. There's a lot of info on youtube and the internet. Google "pitman shaft seal replacement" and read or view first so you can get an idea of the tools you need and what you will have to do. example: |
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#5 |
Registered User
Join Date: Oct 2010
Location: Ocean Springs, MS
Posts: 1,746
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Re: power steer gear box
I was told to crank the engine with the snap ring removed from the seal, and steer back and forth till pressure blows the seal out. Works great but makes a big mess.
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Gary 1971 Chevrolet C/10 1951 GMC 100 1977 GMC C15 1955 Chevrolet 3100 |
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#6 | ||
Registered User
Join Date: Mar 2011
Location: Los Angeles, CA
Posts: 152
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![]() Quote:
Quote:
You might be better off just to just replace the box with a reman unit...if the shaft seals are leaking then probably the other seals inside are not too far off from being done either. Whichever way you go...make sure you use GM power steering fluid...the GM fluid is CLEAR not RED. Contrary to popular belief, transmission fluid IS NOT a substitute for power steering fluid...tranny fluid makes the power steering rubber disolve and thus you have leaks and poor performance...spend the extra couple of bucks for the GM fluid and you will have happy days. |
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#7 |
Moderator
![]() Join Date: May 2007
Location: Southern Cal
Posts: 20,004
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Re: power steer gear box
I have used Dexron transmission fluid for years in both of my trucks' power steering units, never had a problem or leak because of it. It even says to use transmission fluid on the reservoir cap on my remote big block setup. If transmission fluid would cause a seal to leak in a power steering unit, would it not cause a leak in the transmission as well? Is there some kind of special rubber used in steering box seals only?
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1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man |
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#8 | |
Registered User
Join Date: Mar 2011
Location: Los Angeles, CA
Posts: 152
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There are teflon seals on the spool valve that don't like the detergent in tranny fluid. Back when I was working in Cadillac dealerships, the dealer sent us techs to the GM Training Center to attend classes to keep our skills updated...and in the steering courses the GM engineers teaching made it a point that GM P/S fluid has different properties that work more efficiently with the heat and pressures found in P/S systems than tranny fluid does. The most obvious difference I have found with using GM P/S fluid in my own vehicle is that there is not that funky smell that tranny fluid has when it is used in a P/S system. The other thing I've noticed is that I don't have any more "sweating" of fluid at pressure connections like I experienced before I switched to the GM fluid. Bottom line is that the GM engineers really did not say "don't" use tranny fluid but rather strongly recommened that we use the GM P/S fluid. |
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#9 |
Moderator
![]() Join Date: May 2007
Location: Southern Cal
Posts: 20,004
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Re: power steer gear box
interesting...if i ever develop any problems i will definitely switch to gm power steering fluid. i had a problem once with the reservoir hose sweating a long time ago...but that is because the po used a heater hose, lol. i switched to a proper hydraulic hose and the problem was solved.
Posted via Mobile Device
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1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man |
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#10 |
Registered User
Join Date: Jan 2010
Location: Ontario
Posts: 400
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Re: power steer gear box
Thanks for all the input guys,, Hopefully it doesn't turn out to be a big mess, but then again I have had to do worse.
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68 ![]() My other ride ,,, 07 Streetglide.. |
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