Help to I.D.

[Lynn Eades]

Hi. I wondered if anyone can positively identify a pitman arm for me. I think it might be CMP, but dont know.

I heard a comedian talking about abbreviations. On I.D., he thought it was stupid that "I" stood for "I" (der ) and "D" stood for "Dentification" (all the rest!)
Anyhow back to the drop arm (pitman arm)
The spline is the right size for a 3/4 ton WC Dodge. They used a Gemmer steering box. Gemmer made steering boxes for CMPs as well

[motto]

The 3/4 ton drop arm is a one piece forging, the ball being integral with the arm.
This drop arm looks more like a Lend/Lease Chev item though the offset appears to be greater.
Can you give the centre to centre dimension and ball diameter. The spline diameter would also help along with the offset dimension.

David

[Lynn Eades]

Hi David. I was not saying it was 3/4 ton Dodge, just that the spline is the same. The Dodge one has the ball on the opposite side and is a one piece forging. This one has a ball stud that is retained by a swage (similar to a rivet)
The offset (straight edge on the back) is approx. 105mm (center of ball to straight edge) The ball dia 0.980". Effective length (C to C) 6 7/8".
Also, it does have four equally spaced master splines, as per the 3/4 ton Dodge. Could it be M37?
On one side it has "1035 W W" and on the other "265469 M3" Chrysler? GM?

[motto]

Not L/L Chev, definitely not M37

David

[motto]

Lynn

The pitman arm is for GMC 6x6 (CCKW)

David

[Lynn Eades]

Thankyou!, David. I knew someone would know!