Steering column: which one for my 72 challenger

[Robchally]

I'm rebuilding a steering column for my 72 challenger. When I bought the car, it came with an incorrect column.

The shifter is on the floor.
I have two columns, one wit a shaft length of app. 100 cm, about 40 inches, and one with a shaft-length of app. 85 cm, about 34 inches. They both were sold to me as challenger columns.......

Which one to use?

Thanks!

[Bullitt-]

Would the shorter column be for  power steering, the longer for manual steering?
Is the difference in length just in the shaft that attaches to the steering box?
I don't know the lengths but if both are true E-body columns that would explain the difference.

[Bullitt-]

Did a search and your numbers seem a little short...ck this http://www.cuda-challenger.com/cc/index.php?topic=53143.msg550113#msg550113

[Robchally]

It seems like I need to install the longer one. I went to my car, it not stored at home, and found out there's about 12 inches from the steering box coupler to the fire-wall.. must be clear now....

Another question: What about the shift-gear-tube: Do I just leave it as it is, when I install the B&M floorshifter?
It doesn't bother me, I might want to cut the lever off....

[Bullitt-]

I don't know why you would need to unless it was for header clearance.

[Robchally]

I was thinking of clearance, yes. And of the looks of it....

Seems that I'm all set, now. Thanks for thinking with me, Bullit.