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#1 |
Account Suspended
Join Date: Apr 2016
Location: Rancho Mirage, Ca.
Posts: 875
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R/B'ing PS Gear Box My Self, easy or not
Like the title said How easy is it to rebuild a power steering gear box, any special tools needed? #'s are 7802644 with top Alum inspection covers #'s 5686555. Not real sure how to read the date codes from ether if needed. Is there any exploded view diagrams any where? any help would be appreciated
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#2 |
Senior Member
![]() Join Date: Mar 2003
Location: Colfax-California
Posts: 8,518
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Re: R/B'ing PS Gear Box My Self, easy or not
Well..........let's say I've been a mechanic for the past 40+ years. I took one apart about 25 years ago ---spool valve, ball bearings and everything, not going to do that again...ever. (Just didn't have the patience) I will however not give a second thought to resealing one or swapping out a sector shaft. Much easier for me to buy a rebuilt with a guarantee/warranty.
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#3 | |
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Join Date: Apr 2016
Location: Rancho Mirage, Ca.
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Re: R/B'ing PS Gear Box My Self, easy or not
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#4 | |
Senior Member
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Location: Scottsdale, AZ
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Re: R/B'ing PS Gear Box My Self, easy or not
Quote:
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#5 |
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Location: Rancho Mirage, Ca.
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Re: R/B'ing PS Gear Box My Self, easy or not
I was just being a smart a $ $ with the Hmmmm thing LOL. I haven't broken apart the gear box yet and when I do I just might get why he wont do one again. And as for just going out and getting a R/B Pw Strg Box well I am from the Older Generation that try's to use his brain as much as possible you know exercise thee old noodle. Giving up and buying someone else's work is the easy way out any body can do that, its like being brain dead if you know what I mean. Not trying to offend you its having that pride thing in what you can do.
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#6 |
Registered User
Join Date: Dec 2012
Location: Fort Thomas, KY
Posts: 290
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Re: R/B'ing PS Gear Box My Self, easy or not
I thought about doing this same things but thought otherwise when I found out all the special tools that would be needed. I sent it to a re-builder who changed the ratio to 3-1/3 turns and resealed it. For $200, it was money well spend and I did not have to deal with the hassle.
Just saying, sometimes it is better to let the professionals do their thing.
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1972 GMC 1500 Super Custom, 383 Stoker, TH350 Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=592157 Engine Thread http://67-72chevytrucks.com/vboard/s...d.php?t=592233 |
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#7 | |
Senior Member
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Location: Scottsdale, AZ
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Re: R/B'ing PS Gear Box My Self, easy or not
Quote:
Our re-manufacturing process: Machining out the housings and installing needle bearings Flame-spraying or replacing the shafts as needed Installing new control valves on some applications Custom fitting each worm & piston assembly with special ordered, precise over-sized ball bearings. Other things we do to produce a top quality product include: Install every sector shaft on a lathe to check for straight and true polish the sealing surface to a higher polish than new.
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#8 |
Senior Member
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Location: Colfax-California
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Re: R/B'ing PS Gear Box My Self, easy or not
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#9 |
Registered User
Join Date: Aug 2010
Location: Edwards, CA
Posts: 7,503
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Re: R/B'ing PS Gear Box My Self, easy or not
Did you look at the GM factory chassis service and overhaul manuals?
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Thanks, Tim * VIN/Model Decoders * Power Team Charts (engine/transmission/gear ratio) * Post Your Pickup SPID ** Blazer SPID ** Suburban/Panel SPID * RTFM ... Read The Factory Manuals... download 'em here Highlanders ** Do you have a 1972 Plaid Pickup? ** Plaid Blazer ** Plaid Suburban |
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#10 |
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Join Date: Apr 2016
Location: Rancho Mirage, Ca.
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Re: R/B'ing PS Gear Box My Self, easy or not
If the GM Factory Manual was an Original Book (Published around 68) I'd love to own one, being most of the ones I see and hear of is a Printing of a Printing book being not the best quality of the information printed on the pages. You know like real Blurry. To answer you No I haven't looked at a Service Overhaul Manual
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#11 |
Registered User
Join Date: Aug 2010
Location: Edwards, CA
Posts: 7,503
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Re: R/B'ing PS Gear Box My Self, easy or not
Used original manuals are easy to find. The reproductions I've seen were more than usable. But you can start by simply downloading pdfs of both. They are linked in my signature.
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Thanks, Tim * VIN/Model Decoders * Power Team Charts (engine/transmission/gear ratio) * Post Your Pickup SPID ** Blazer SPID ** Suburban/Panel SPID * RTFM ... Read The Factory Manuals... download 'em here Highlanders ** Do you have a 1972 Plaid Pickup? ** Plaid Blazer ** Plaid Suburban |
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#12 |
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Join Date: Oct 2010
Location: Ocean Springs, MS
Posts: 1,746
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Re: R/B'ing PS Gear Box My Self, easy or not
What sort of trouble are you having with it?
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Gary 1971 Chevrolet C/10 1951 GMC 100 1977 GMC C15 1955 Chevrolet 3100 |
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#13 |
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Location: Rancho Mirage, Ca.
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Re: R/B'ing PS Gear Box My Self, easy or not
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#14 |
Registered User
Join Date: Oct 2010
Location: Ocean Springs, MS
Posts: 1,746
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Re: R/B'ing PS Gear Box My Self, easy or not
In that case, I'd put it on and see what happens. Might not be anything wrong with it.
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Gary 1971 Chevrolet C/10 1951 GMC 100 1977 GMC C15 1955 Chevrolet 3100 |
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#15 |
Registered User
Join Date: Sep 2016
Location: Vancouver BC
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Re: R/B'ing PS Gear Box My Self, easy or not
Best answer in the thread!
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Rick -69 GMC 910 Long Box, 350 -98 Chev Silverado 1500, 350 Vortec 4L60e -08 Mustang GT Convertible |
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#16 |
Senior Member
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Location: Winona Lake, IN
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Re: R/B'ing PS Gear Box My Self, easy or not
I took mine apart and "rebuilt" it some years ago. I did not replace any of the parts in it because I did not see any excessive wear on anything, so I just bought a kit to reseal it. It was not that difficult. I found an article online that I used that outlined the process pretty well. If I can find a link I will post it. One thing I do remember, there were a helluva lot of balls in it.
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70 C/10 SWB 402/TH400/3.73 "The Needy Beast" 200,000 Mile Club Disc Brake Club Owner installed options: Front Sway Bar Power Steering Power Brakes Cigar Lighter Courtesy Lights Deluxe Side Markers Wiper Delay Power windows Power Locks Sniper EFI 2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear |
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#17 |
Senior Member
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Location: Winona Lake, IN
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Re: R/B'ing PS Gear Box My Self, easy or not
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70 C/10 SWB 402/TH400/3.73 "The Needy Beast" 200,000 Mile Club Disc Brake Club Owner installed options: Front Sway Bar Power Steering Power Brakes Cigar Lighter Courtesy Lights Deluxe Side Markers Wiper Delay Power windows Power Locks Sniper EFI 2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear |
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#18 |
laying low
![]() Join Date: Mar 2001
Location: Searcy, Ark. USA
Posts: 13,200
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Re: R/B'ing PS Gear Box My Self, easy or not
Tx firefighter did an excellent power sector reseal writeup a couple years ago. See if i can link it here.
http://67-72chevytrucks.com/vboard/s...d.php?t=619634 Its in the suspension forum. Also kevin tetz did a sector rebuild on the tv show. Some will remember it.
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Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross |
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#19 |
Registered User
Join Date: Apr 2011
Location: Klein Texas
Posts: 3,852
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Re: R/B'ing PS Gear Box My Self, easy or not
I've rebuilt at least a hundred units. The only special tools are a pin spanner and a inch pound torque wrench (dial or beam)
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My Classics: '72 K20 Suburban + '65 Dodge Town Wagon '72 Corvette Roadster +'67 Corvette Roadster '73 Z-28 Camaro '63 Ford SWB Uni Pickup '50 Ford Coupe |
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#20 |
The Older Generation
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Location: Montezuma, Iowa
Posts: 25,477
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Re: R/B'ing PS Gear Box My Self, easy or not
-
I rebuilt the one in my '72 C-30 a couple of months ago. Only problem I had was that I ordered the wrong kit the first time. There are a couple of good how-to's on YouTube that I used. I ordered my kit from http://www.RockAuto.com LockDoc
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#21 |
Account Suspended
Join Date: Apr 2016
Location: Rancho Mirage, Ca.
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Re: R/B'ing PS Gear Box My Self, easy or not
Since you are the only one on I'll ask you. I haven't read the Article that 70stovebolt posted yet but I did thumb through it and from others have said they have a HOLE LOT of round bearings/balls, I didn't see that from his/that Article. Can you add to that. Thanks
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#22 |
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Re: R/B'ing PS Gear Box My Self, easy or not
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#23 |
Registered User
Join Date: Aug 2010
Location: Edwards, CA
Posts: 7,503
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Re: R/B'ing PS Gear Box My Self, easy or not
Those balls are the recirculating ball part of the steering system.
The #23 worm gear's helix grove (steering wheel input) moves the #7 rack/piston in a fore and aft motion which in turn (through external teeth) rotates #16 the verticle sector shaft/pitman arm. The #11 balls flow through matching passages in the worm gear and the rack connecting them mechanically while reducing backlash, friction and wear between the two components.
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Thanks, Tim * VIN/Model Decoders * Power Team Charts (engine/transmission/gear ratio) * Post Your Pickup SPID ** Blazer SPID ** Suburban/Panel SPID * RTFM ... Read The Factory Manuals... download 'em here Highlanders ** Do you have a 1972 Plaid Pickup? ** Plaid Blazer ** Plaid Suburban |
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#24 | |
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Location: Rancho Mirage, Ca.
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Re: R/B'ing PS Gear Box My Self, easy or not
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#25 | |
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Re: R/B'ing PS Gear Box My Self, easy or not
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