Pitman arm problem

64 Dart said

I'm swapping out the steering box on my 64 dart. They are both power steering units. The old box is Part # M2127008 and the "new" one is #G3643012. My problem is the shaft for the old pitman arm is 1.125 and the new box is 1.250. Is there an interchangable arm I can bolt onto the 1.250 shaft and still be able to hook it up to my stock center link?

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You are going to have to get a smaller diameter box.

I don't know if the 64 pitman arm is the same part number as a 69 A-body pitman.

The 67-72 A-body pitman swaps with a 73-76 A-body pitman BUT you have to run the 73-76 centerlink and idler arm that mounts from the top.

For a 64-66 A-body there is NO centerlink or idler arm that will allow you to use the 73-76 pitman that connects to the centerlink from the top.

So for a 66 down A-body you are stuck wit the 1.125 small spine steering box.