Power steering box cross references - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**FL71C10** · 06-24-2010, 05:01 PM

Does anyone know what year power steering box will fit in my 71? My truck was left outside with no hoses on the box and it is really hard to steer. I am worried the box is shot.

JimKshortstep4x4 · 06-24-2010, 09:16 PM

I believe 2 wd trucks up to 82 will interchange without having to change the hose adapters.

Before you condemn the box I would make sure the box is flushed out. Unless the box was outside for a very long time there will not be much water in it.

What has worked for me is to purge the box with fluid using an electric pump.
Once clean fluid goes through most of the water and contaminants will be flushed out. Once the box is installed bleeding the air out will take some time turning the wheel lock to lock. You may have to let the box sit until the foaming dies out before adding fluid to the reservoir. Once the air is bled out and the reservoir is full your power steering should work.

Jim

**FL71C10** · 06-24-2010, 09:25 PM

Thanks, Jim,

Right now I have no motor in the truck. Maybe I can still flush it and the cap off the fittings. What kind of pump do you suggest?

06-24-2010, 05:01 PM	#1
FL71C10 Senior Member Join Date: Jun 2010 Location: Orlando, Florida Posts: 2,514	Power steering box cross references Does anyone know what year power steering box will fit in my 71? My truck was left outside with no hoses on the box and it is really hard to steer. I am worried the box is shot. __________________ 71 Chevy C10 Shortbed Stepside. LT1 with 4l60E. Just got back from painter, in assembly now.

06-24-2010, 09:16 PM	#2
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	Re: Power steering box cross references I believe 2 wd trucks up to 82 will interchange without having to change the hose adapters. Before you condemn the box I would make sure the box is flushed out. Unless the box was outside for a very long time there will not be much water in it. What has worked for me is to purge the box with fluid using an electric pump. Once clean fluid goes through most of the water and contaminants will be flushed out. Once the box is installed bleeding the air out will take some time turning the wheel lock to lock. You may have to let the box sit until the foaming dies out before adding fluid to the reservoir. Once the air is bled out and the reservoir is full your power steering should work. Jim __________________ 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 Last edited by JimKshortstep4x4; 06-24-2010 at 09:17 PM. Reason: wording

06-24-2010, 09:25 PM	#3
FL71C10 Senior Member Join Date: Jun 2010 Location: Orlando, Florida Posts: 2,514	Re: Power steering box cross references Thanks, Jim, Right now I have no motor in the truck. Maybe I can still flush it and the cap off the fittings. What kind of pump do you suggest? __________________ 71 Chevy C10 Shortbed Stepside. LT1 with 4l60E. Just got back from painter, in assembly now.

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