Big Block and Steering

So the folks over at PST also has two pitman arm part numbers. Here is their reasoning:

PIT 18736
This arm is for 1968-69 a bodies with 383. The over all length is 7 1/4"

PIT 18758
This arm is for 1967 all engines in abodies and 1968-69 with out 383. The over all length is 6 3/4"

The drop is the same on both pitman arms and so are the sector shafts, but the overall length is shorter on the PIT1758.


The longer length was most likely for clearance for the big block.



So if anyone else has any other opinions on this, I am open to them