Quote:
Originally Posted by blucar
When I changed the steering gear box in my '36 coupe in the mid 1950's I used a '40 setup with the '40 column jacket and frame mount.
I finally used a '40 pitman arm #21-A350-3 015. The alignment, position was perfect.
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blucar .....I have tried to bring this mistake to your attention in the past, but you continue to label a 1940 Ford Pitman arm as a #21-A350-3 015. And, you even get the WRONG number wrong! A
1942-1948 Pitman Arm has the number "21A-3590" forged into the surface. There are more than one difference between a "78-3590" (1937-1940) Pitman arm and a "21A-3590" ('42-'48) arm. And just to make matters clear, there is an "11A-3590" Pitman arm used exclusively on 1941 Fords. The difference in numbers means something!
Below is a
78-3590 Arm (1937-1940). The SPLINED taper is OPPOSITE direction of DRAG LINK taper, plus the DOUBLE offset bends. The small Pitman in background is a 1935-'36 piece.
BELOW is a "78-3590" (1937-1940) Pitman arm with drag link properly installed, as seen on a '37 or '38 Ford (cable brakes).
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Below is a
21A-3590 Arm (1942-1948). Both holes tapered SAME direction, plus ONLY ONE bend.
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