Z-S carb throttle shaft question

[John Middlesworth <jape@email.unc.edu>]

I am replacing the throttle shafts in my TR4A (with Zenith-Stromberg
carburetors).  Moss supplied two shafts that are 6 1/4 inch long, while
the originals are only 5 inches long.  The only thing I can figure is the
part they've sent is to the rear carb on a TR250-6.  Does that carb take a
longer shaft from the front one?  What should I do, just pull out the old
hacksaw and turn the pieces into 5 inch throttle shafts?

John Middlesworth
1966 TR4A