Sreering box shaft size

[68sportsatelliteragtop]

Steering box shaft size

I bought a reman steering box from Summit, when I went to install the pitman arm it won't fit. Took some measurements and appears to be about 1/8 bigger diameter on the new shaft. Bolted right in the frame OK. Turns out it is for 71 and up. Does anyone know if a 71 pitman arm has the same geometry as a 62-70 arm? The correct box is on nationwide BO. If the arms are the same I might go that route.

 

[YY1]

I've been told yes*, and the 71-79(or whenever) pittman and idler arms are cheaper than the older ones. One of my buds is a Chrysler dealership parts guy, and he said I'd need a 71 and up (*or was it 73 and up?) arm to run the box from my 87 5th Ave in my 66.

 

[68sportsatelliteragtop]

It is 73 and up. Called Steer and Gear today and got some part nos. for 73+ arms, shaft dia. 1 1/2" vs 68-72 shaft dia.1 1/8". Now trying to find one and return the new 68 when it gets here.Thanks for the help.