No big deal, but some work.
If you have a 3 on the tree you also have to shorten the shift rod.
I did a conversion toa later Saginaw box on the 41 and connected both, the Saginaw shaft and the shortened stering shaft with a sleeve.
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You also may give Buffalo Enterprices a call, he always got a cure for those kind a things.
25625 Dahl Road, Arlington, WA, 98223
(360) 652-7684

Frank