Coupler length

The reason I ask is because I have two couplers; One that came off a 72 Dodge Demon P/S column shifter and one that came off an unknown 73 A body floor shifter P/S.

The couplers are two different lengths and I have mixed them up. One is 3 9/16" and the other is about 3 1/8" long. Just trying to find out which one goes to which column