Bergman Auto Craft Steering Coupler question

^^^^^^^^^^^^^ correct ^^^^^^^^^^^^^^^^

There are 2 different length couplers; 3" and 3-1/2

3" fits 67-73 A bodies, 66-73 B bodies and 70-73 E bodies. Fits many trucks and vans too. MEASURE THE OVERALL LENGTH OF YOUR COUPLER TO BE SURE.

3-1/2" fits 74-76 A body, 74-76 B Body, 74 E Body. MEASURE THE LENGTH OF YOUR COUPLER TO BE SURE.

The couple clamp/wire retainer does not fit the aftermarket couplers. For some reason they are made about .050" longer. Doesn't sound like much but the retainer can not be installed. its designed to be SNUG on the factory length piece