BB A body pitman arm

I hate to jump in on this, but I had a similar problem. My 69 383-s has a fast ratio box. I bought a new pitman arm and it didn't fit. The shaft diameter is to small. I ended up putting the old one back on, even though it is worn.

I bought it from Rare Parts - 20492
Click to view image of part PITMAN ARM
Application: V8 6.3L 6286cc 383cid
Location: FRONT

I still have not found the right pitman, although Rare Parts can make one for an arm and a leg (2-3 hundred dollars).

Rod