The one on the 37 is 15 + 1/4 in length and the repaired one on the 41 measures 17 + 3/4 inches (Link from the steering box to the Spindle), but like I said the repair looks like they added about 2 inches or so to it? I just don't have any info on the correct length? If the correct length for the arm is in the ballpark at 15 +1/4 why would you add 2 inches to a repair? and what would you gain if you did?
