84 power steering box? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Richard Dobson · 12-20-2007, 03:43 PM

I am putting a 1984 power steering box into my 71 C10. I have all the other parts for the power steering: pump, brackets, hoses etc from a 69 GMC for a big block that has the fluid resevior mounted on the passenger side fender. I have pre-assembled the hoses to the steering box and the fittings seem to fit OK, but I have read something about "O-Ring" hoses will only work in this 1984 model power steering box. Am I going to have leak problems if I use these hoses?

gringoloco · 12-20-2007, 06:14 PM

I have the '84 box on both my trucks. It uses an entirely different fitting. If you look down in the ports, you can see the older style is an angled flare and the newer style is an o-ring fitting. The o-ring style is just like an A/C line. They are NOT interchangeable- you will have leaks.

You will need the newer hose and fitting at the rear of the pump. The pump fitting is a 1" hex and is torqued in there very well, but it will come out. Conversely, you can get a hose built with the newer fitting on the box end and the older fitting on the pump end. You will still need the line for the low pressure side- I used a piece of old A/C hardline and clamped on 3/8" hose.

**70C10Toejam** · 12-28-2007, 01:16 PM

Actually you can use the '84 the same way I used my '85. OE lines with these inserts. Also some adapters available, but take up too much room.

http://67-72chevytrucks.com/vboard/s...d.php?t=242458

GlennBrittain · 12-29-2007, 05:15 PM

One problem I ran into is the 1977 to 86 model steering box will have a 3/4" shaft, and the 68 to 76 has a 13/16" shaft. You will need the box side of a 77 to 86 rag joint if you use this box. It bolts up to the 69 column side of the rag joint.

gringoloco · 12-29-2007, 08:46 PM

Good call GB. I forgot about that. You will need the newer rag joint. The old pitman arm will work though...

12-20-2007, 03:43 PM	#1
Richard Dobson Registered User Join Date: Apr 2003 Location: Easley, South Carolina Posts: 491	84 power steering box? I am putting a 1984 power steering box into my 71 C10. I have all the other parts for the power steering: pump, brackets, hoses etc from a 69 GMC for a big block that has the fluid resevior mounted on the passenger side fender. I have pre-assembled the hoses to the steering box and the fittings seem to fit OK, but I have read something about "O-Ring" hoses will only work in this 1984 model power steering box. Am I going to have leak problems if I use these hoses? __________________ Richard Dobson

12-20-2007, 06:14 PM	#2
gringoloco A guy with a truck Join Date: Sep 2005 Location: Germany, for now Posts: 5,921	Re: 84 power steering box? I have the '84 box on both my trucks. It uses an entirely different fitting. If you look down in the ports, you can see the older style is an angled flare and the newer style is an o-ring fitting. The o-ring style is just like an A/C line. They are NOT interchangeable- you will have leaks. You will need the newer hose and fitting at the rear of the pump. The pump fitting is a 1" hex and is torqued in there very well, but it will come out. Conversely, you can get a hose built with the newer fitting on the box end and the older fitting on the pump end. You will still need the line for the low pressure side- I used a piece of old A/C hardline and clamped on 3/8" hose. __________________ -Chris Instagram _elgringoloco_ '70 Short-Wide How to: Ruin a perfectly good C10 ‘70 Blazer ConversionHow To: Ruin a Perfectly Good 4wd '72 Highlander How To: Ruin a Perfectly Good K/5 (SOLD) '72 Blazer 2WD How to: Ruin a perfectly good Blazer (SOLD) '05 Yukon Daily Driven (not so stock) Yukon (SOLD) ‘07 Yukon Denali (daily) Members met list: SCOTI, darkhorse970, 67cheby, 67cheby'sGirl, klmore, porterbuilt, n2billet, Fastrucken, classicchev, Col Clank, GSFMECH, HuggerCST, Spray-Bomb, BACKYARD88, 5150, fine69, fatbass, smbrouss70, 65StreetCruiser, GAc10boy

12-28-2007, 01:16 PM	#3
70C10Toejam Hellasick Join Date: Jul 2006 Location: Death Moans, IA Posts: 876	Re: 84 power steering box? Actually you can use the '84 the same way I used my '85. OE lines with these inserts. Also some adapters available, but take up too much room. http://67-72chevytrucks.com/vboard/s...d.php?t=242458 __________________ I keep two MAGNUMS in my desk. One's a gun, and I keep it loaded. The other's a bottle and it keeps ME loaded. I'm Tracer Bullet. (Calvin and Hobbes) This life was a test. It was only a test. If this had been an actual life, you would have received instructions on where to go and what to do. RED meat is not bad for you...FUZZY BLUE/GREEN MEAT is bad for you!!!!!!!!!!!!! BUILT FORD TOUGH WITH CHEVY STUFF--sticker at Goodguys

12-29-2007, 05:15 PM	#4
GlennBrittain Senior Member Join Date: Jun 2003 Location: Panola County Texas Posts: 401	Re: 84 power steering box? One problem I ran into is the 1977 to 86 model steering box will have a 3/4" shaft, and the 68 to 76 has a 13/16" shaft. You will need the box side of a 77 to 86 rag joint if you use this box. It bolts up to the 69 column side of the rag joint.

12-29-2007, 08:46 PM	#5
gringoloco A guy with a truck Join Date: Sep 2005 Location: Germany, for now Posts: 5,921	Re: 84 power steering box? Good call GB. I forgot about that. You will need the newer rag joint. The old pitman arm will work though... __________________ -Chris Instagram _elgringoloco_ '70 Short-Wide How to: Ruin a perfectly good C10 ‘70 Blazer ConversionHow To: Ruin a Perfectly Good 4wd '72 Highlander How To: Ruin a Perfectly Good K/5 (SOLD) '72 Blazer 2WD How to: Ruin a perfectly good Blazer (SOLD) '05 Yukon Daily Driven (not so stock) Yukon (SOLD) ‘07 Yukon Denali (daily) Members met list: SCOTI, darkhorse970, 67cheby, 67cheby'sGirl, klmore, porterbuilt, n2billet, Fastrucken, classicchev, Col Clank, GSFMECH, HuggerCST, Spray-Bomb, BACKYARD88, 5150, fine69, fatbass, smbrouss70, 65StreetCruiser, GAc10boy Last edited by gringoloco; 12-29-2007 at 08:46 PM.



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