HELP - Pitman Arm - The 1947 - Present Chevrolet & GMC Truck Message Board Network

dregs454 · 10-29-2003, 09:09 PM

I have a 72 3/4 ton 2wd with manual steering, and I bought a power box that came from a 4wd truck. The pitman arms look to be different. How can I make this work? Also, I don't have the brackets for the pump/resevoir, I have headers, so what should I be looking for when I get brackets?

thanx alot

dregs454 · 10-30-2003, 02:35 PM

Maybe I could use a pitman arm from a 73-87 3/4 ton 2wd with power steering? Someone please help me!

cdowns · 10-30-2003, 03:42 PM

local auto-parts store should be able to help you out wiyh the pitman arm and ps pump, place a WTB on the parts board for the brackets

Livrat · 10-30-2003, 11:12 PM

Sorry to burst your bubble.. But the 4WD steering box will not work on your 2wd.. the Internal sector shaft in the box itself and the pitman arm are totally different.. And not interchangable...
You can use a power steering box off any 1968 to 1980 2wd truck... (later than that will work too, But use O-rings on the hoses instead of flared fittings)
On the pump brackets you are searching for... It will depend on if you have the origonal short water pump and alternator brackets still installed, if so the easiest way is to find a 68 -72 truck with power steering... It will also depend on which pulley that is on the pump you have.. is the pulley flat and bolted on? Or pressed on?? Alighnment issues could arise...
There are quite a few variables and unfortunatley no one simple answer...

**COBALT** · 10-31-2003, 11:55 AM

Also beware of power and non-power steering boxes. I believe the pitman is a bit different between those too, but I might be wrong.

dregs454 · 10-31-2003, 04:49 PM

well. dang, looks like I'm stuck with a 4wd power steering box now, guess I'll have to search for a 2wd box

the sector shafts are deffinatly different, the 4wd one being splined on only 1/4 of the way around the shaft, and it has a groove cut into it for the pinch bolt on the pitman arm

thanx guys

68C10 · 11-02-2003, 12:27 AM

The splined end of the pitman arm is larger on the power steering box.

JJR · 11-02-2003, 12:41 AM

I would not be too upset. From what I have seen, 4WD power steering boxes sell for more than 2WD boxes. You should be able to sell what you have, get what you need and still have money in your pocket.

dregs454 · 11-03-2003, 01:33 AM

well, thats good news then! I got it for a fair price I think too, 100 cdn for the pump and box, I guess I'll put it up for sale in the paper

10-29-2003, 09:09 PM	#1
dregs454 Killin' Time Join Date: Jul 2002 Location: Calgary, Alberta Posts: 221	HELP - Pitman Arm I have a 72 3/4 ton 2wd with manual steering, and I bought a power box that came from a 4wd truck. The pitman arms look to be different. How can I make this work? Also, I don't have the brackets for the pump/resevoir, I have headers, so what should I be looking for when I get brackets? thanx alot __________________ NEED CORVETTE 1972 GMC C20 350, SM465, HEI Dynomax headers and 2.5" duals

10-30-2003, 02:35 PM	#2
dregs454 Killin' Time Join Date: Jul 2002 Location: Calgary, Alberta Posts: 221	Maybe I could use a pitman arm from a 73-87 3/4 ton 2wd with power steering? Someone please help me! __________________ NEED CORVETTE 1972 GMC C20 350, SM465, HEI Dynomax headers and 2.5" duals

10-30-2003, 03:42 PM	#3
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	local auto-parts store should be able to help you out wiyh the pitman arm and ps pump, place a WTB on the parts board for the brackets __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

10-31-2003, 11:55 AM	#5
COBALT Senior Member Join Date: Sep 2001 Location: Seattle, WA, USA Posts: 5,817	Also beware of power and non-power steering boxes. I believe the pitman is a bit different between those too, but I might be wrong. __________________ '69 3/4 ton C20 2wd-350ci/TH400 '69 3/4 ton Custom 20 2wd-350ci/4sp Manual '99 2wd 5.7 Chevy Tahoe Seattle, WA.

10-31-2003, 04:49 PM	#6
dregs454 Killin' Time Join Date: Jul 2002 Location: Calgary, Alberta Posts: 221	well. dang, looks like I'm stuck with a 4wd power steering box now, guess I'll have to search for a 2wd box the sector shafts are deffinatly different, the 4wd one being splined on only 1/4 of the way around the shaft, and it has a groove cut into it for the pinch bolt on the pitman arm thanx guys __________________ NEED CORVETTE 1972 GMC C20 350, SM465, HEI Dynomax headers and 2.5" duals Last edited by dregs454; 10-31-2003 at 04:51 PM.

10-30-2003, 11:12 PM	#4
Livrat Member #1049 Join Date: Jun 2000 Location: Troy Montana Posts: 3,940	Sorry to burst your bubble.. But the 4WD steering box will not work on your 2wd.. the Internal sector shaft in the box itself and the pitman arm are totally different.. And not interchangable... You can use a power steering box off any 1968 to 1980 2wd truck... (later than that will work too, But use O-rings on the hoses instead of flared fittings) On the pump brackets you are searching for... It will depend on if you have the origonal short water pump and alternator brackets still installed, if so the easiest way is to find a 68 -72 truck with power steering... It will also depend on which pulley that is on the pump you have.. is the pulley flat and bolted on? Or pressed on?? Alighnment issues could arise... There are quite a few variables and unfortunatley no one simple answer...

11-02-2003, 12:27 AM	#7
68C10 Registered User Join Date: Dec 1999 Location: Central New Jersey, USA Posts: 328	The splined end of the pitman arm is larger on the power steering box. __________________ 68C10 1968 C10 SWB No Options but 40K original miles 1967 K20 LWB 283 4-speed South Plainfield, NJ

11-02-2003, 12:41 AM	#8
JJR Registered User Join Date: Apr 2000 Location: Leesburg, GA Posts: 746	I would not be too upset. From what I have seen, 4WD power steering boxes sell for more than 2WD boxes. You should be able to sell what you have, get what you need and still have money in your pocket. __________________ FOUNDING MEMBER OF THE DRUM BRAKE CLUB Second Owner 70 C-10 Second Owner 93 GMC C1500 Third Owner 99 C2500 Crew Cab Short Bed

11-03-2003, 01:33 AM	#9
dregs454 Killin' Time Join Date: Jul 2002 Location: Calgary, Alberta Posts: 221	well, thats good news then! I got it for a fair price I think too, 100 cdn for the pump and box, I guess I'll put it up for sale in the paper __________________ NEED CORVETTE 1972 GMC C20 350, SM465, HEI Dynomax headers and 2.5" duals

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