Pitman arm question??? - Team Camaro Tech
Brakes, Suspension & Steering Conversion questions, Steering & Handling

 
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post #1 of 9 (permalink) Old Feb 21st, 14, 02:08 PM Thread Starter
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Chris
 
Join Date: Nov 2012
Location: Ontario, Canada
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Pitman arm question???

Is it possible for two different pitman arm options on a 69 with power steering? The one I took off is 5.25" centre to centre. The one I picked up from the parts store is 5.75" centre to centre. It's a MOOG part. I even checked the MOOG website and the only one they list IS the one I got from the parts store. I also measured the new idler arm that came in a separate kit. It's 5.5" centre to centre, if that makes a difference. I'm starting to wonder if the whole subframe was swapped in this car before I started working on it.

I'm losing my mind with this car.
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post #2 of 9 (permalink) Old Feb 21st, 14, 02:11 PM
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Jeff
 
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Re: Pitman arm question???

Check out http://www.pozziracing.com should get some answers there.

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69 X11 SS, Glacier Blue, LS3 480, T56 Mag, Lots of stuff done to it, all by yours truly
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post #3 of 9 (permalink) Old Feb 21st, 14, 02:34 PM Thread Starter
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Chris
 
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Re: Pitman arm question???

Quote:
Originally Posted by workng247 View Post
Check out http://www.pozziracing.com/ , should get some answers there.
Thank you so much for that info!!! I was able to figure out that some time long before I ever got my hands on this car, someone had installed a manual steering, short pitman arm onto my power steering box. Weird, but at least now I know what I've got. I'm sure I'll be referring back to that page many times before I finish this car.

1969 Z28 RS (building)
DZ302
M21
12-bolt, 3.73

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post #4 of 9 (permalink) Old Feb 21st, 14, 05:35 PM
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T
 
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Re: Pitman arm question???

Quote:
Originally Posted by Z28BUILD View Post
Thank you so much for that info!!! I was able to figure out that some time long before I ever got my hands on this car, someone had installed a manual steering, short pitman arm onto my power steering box. Weird, but at least now I know what I've got. I'm sure I'll be referring back to that page many times before I finish this car.
The 5.25" pitman is a slower ratio power steering pitman, the 5.75" job is faster ratio:

Quote:
Pitman K6151 PS, short 5.25"
Pitman, PS K6154, 67-69 5.78" long (probably 5 3/4") 32 splines 1.1-1.18 diam. Not longer available from Moog.
Pitman, PS , long, Moog# 6582 New production run, no grease fitting - Currently available at any auto parts store that sells Moog parts.
Pitman, PS long, TRW # 18770 Same as above. Probably a Moog part in a TRW box.
Either will work -- but the longer pitman will be a bit higher steering effort and a bit quicker ratio.
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post #5 of 9 (permalink) Old Feb 21st, 14, 05:42 PM
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Tom
 
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Smile Re: Pitman arm question???

I don't believe a manual steering pitman arm will fit a power steering car.
There were two different length pitman arms that were originally used on these cars.
From David Pozzi's sight :

There are two lengths, the short Pitman is 5.25" long center to center.
It seems the long pitman was used on all? 67, Camaros with no short option.
The long 5.8" and short 5.25 were used on the 68 and 69, both manual and power steering.

The 5.8" being used for the fast ratio steering option.

More information here : https://www.camaros.net/forums/showthread.php?t=28805

69 Camaro -originally a LM1 car. 327, Edelbrock E-streets, hooker, DUI performance distributors, ultradyne cam, stewart, TRW etc. Vintage Air, AGR steering, Corbeau GTSII seats, 700R4 transmission, 12-bolt w/Eaton 4.11:1
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post #6 of 9 (permalink) Old Feb 21st, 14, 05:43 PM
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Tim
 
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Re: Pitman arm question???

Quote:
Originally Posted by Z28BUILD View Post
someone had installed a manual steering, short pitman arm onto my power steering box.
Are you sure, because the manual and power steering pitman arms have a different splined hole size.

1969 04A Van Nuys-built Z/28. Cortez Silver with dark blue interior and VE3. Sold Clippinger Chevrolet. Raced at Lions in LA.
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post #7 of 9 (permalink) Old Feb 22nd, 14, 03:35 PM Thread Starter
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Chris
 
Join Date: Nov 2012
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Re: Pitman arm question???

Quote:
Originally Posted by ZLP955 View Post
Are you sure, because the manual and power steering pitman arms have a different splined hole size.
Well, the short pitman arm that I took off had a GM part number (3953219) on it. On the POZZI site, that part number is listed as the short pitman arm for the manual box. I'm as confused as anybody else????

1969 Z28 RS (building)
DZ302
M21
12-bolt, 3.73

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post #8 of 9 (permalink) Old Feb 22nd, 14, 05:18 PM
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Tim
 
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Re: Pitman arm question???

Quote:
Originally Posted by Z28BUILD View Post
Well, the short pitman arm that I took off had a GM part number (3953219) on it. On the POZZI site, that part number is listed as the short pitman arm for the manual box. I'm as confused as anybody else????
Aha, just checked CRG steering section, and this clears it up. Quote:
"The pitman arms for manual steering and power steering use the same forging, but the splined holes are different diameters."
Link to complete article here: http://www.camaros.org/suspen.shtml#steer

1969 04A Van Nuys-built Z/28. Cortez Silver with dark blue interior and VE3. Sold Clippinger Chevrolet. Raced at Lions in LA.
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post #9 of 9 (permalink) Old Feb 23rd, 14, 07:10 PM Thread Starter
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Chris
 
Join Date: Nov 2012
Location: Ontario, Canada
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Re: Pitman arm question???

Thanks for your help!


1969 Z28 RS (building)
DZ302
M21
12-bolt, 3.73

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