Power Steering Gear Box Help - JeepForum.com
 
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post #1 of 7 Old 05-02-2018, 06:31 PM Thread Starter
bohmerjr
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1975 CJ5 
 
Join Date: Feb 2008
Location: Richmond , VA
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Power Steering Gear Box Help

'75 CJ5, 4.2 engine. My power steering gear box sprung a leak. It had an .73 in. input shaft. I read somewhere that that size is for manual boxes. The rebuilt box I ordered online ( Lares Corp #1100 ) came with a .80 in. input shaft. I ordered a new bell coupler only to discover that the pressure and return lines won't thread into the box. There are what looks like brass bushings that make the recesses too shallow for my existing lines. None of the 4 auto parts stores I've tried have been able to help. The lines they order are the same as mine. Any ideas about what the box that I'm replacing might be from based on the shallow line holes and .73 in. input?


'75 CJ5 , 4.2 I-6 , t15, D30 , D44, D20TC

Last edited by bohmerjr; 05-02-2018 at 06:33 PM. Reason: Left out vehicle post was for.
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post #2 of 7 Old 05-02-2018, 07:32 PM
Fourtrail
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1974 CJ6 
 
Join Date: Dec 2007
Location: Illinois
Posts: 4,549
Pictures of the ends of you lines? sounds like you may have o-ring lines/o-ring old box and the new lares 1100 is a flare fitting box. iirc the later grand wagoneer boxes had a smaller input shaft and o-ring hoses.

80 CJ-5, 74 CJ-6, 56 CJ-5
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post #3 of 7 Old 05-03-2018, 05:57 AM
jp360cj
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1977 CJ7 
 
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Yep, sounds like you have an 80+ FSJ (Wagoneer, J10) steering box. Your Jeep probably came with manual steering and the power steering setup from an newer Jeep was used. The Waggy boxes are popular for this swap because it uses the same input diameter as the CJ manual boxes.

For 1980, Saginaw (the company who made the Jeep and GM Steering pumps/boxes) switched from SAE flare fittings to metric o-ring fittings.

Here are a few options:

1) Return the steering box and get one for an '80 or newer wagoneer. This will use your old lines and old bell coupler. I would prefer the variable ratio Waggy box over a CJ box.

2) Use the CJ box and bell coupler you bought with lines from an '79 or older CJ. ***THESE LINES WILL NOT FIT YOUR STEERING PUMP AS IS***. I have heard you may can swap out the fitting on the rear of the pump with the correct SAE fitting for the older lines, but I don't know that for fact. This may require also getting a '79 or older pump.

3) Use the new parts you have with custom lines to fit the current pump and new box. IMO, this would be the least preferred due to future replacement complications.

4) You can also return your box and get an '80 or newer CJ box (or a Durango or H1 box for an upgrade) and keep the new bell coupling.

77 CJ-7- AMC 360, Edelbrock cam, MC2100, Fenderwells, CJ T18/D20, Chevy D44/EB 9" rear, Trutrac f/r, 4.11, SOA, 1.25 lift shackles, 35x12.50 BFG KM2s, Shackle Reversal
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post #4 of 7 Old 05-03-2018, 10:09 AM
only in a jeep cj
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On option 2, you can swap out the fitting on the back of the pump. I’ve done it. There is a spring that will go flying if you aren’t ready for it.

Ed
1975 CJ-6 1983 CJ-8
1986 CJ-7 Laredo 1986 2003 Inca Gold TJ Rubicon
2012 JKUR RHD
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post #5 of 7 Old 05-03-2018, 04:39 PM
Willyc
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1983 CJ7 
 
Join Date: Jan 2015
Location: Rockport
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I ran into the same problem when i replaced the gear box on my 83 CJ7 last year. Turns out most of the parts in front of my fire wall are 1977. The 83 gear box had O ring fittings. The Power steering pump that I rebuilt and the old gear box had flare fittings.

Summit Racing sells some adapters to convert the O ring fittings to flare. But there's not enough clearance between the top of the gear box and the bottom of the radiator to accommodate these adapters, I tried.

I had to search around to find a pre 80 gear box. That did the trick.
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post #6 of 7 Old 05-04-2018, 03:59 AM Thread Starter
bohmerjr
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1975 CJ5 
 
Join Date: Feb 2008
Location: Richmond , VA
Posts: 64
Yes, they are o-ring fittings. Thank you guys for the help. I was at a loss as to what to do next. JF members save the day again!!!!

'75 CJ5 , 4.2 I-6 , t15, D30 , D44, D20TC
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post #7 of 7 Old 05-05-2018, 09:29 PM
WSS
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H1 box is a solid solution

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