Jerry, I'd be more concerned about the gear pattern matching up between the 420 PTO and the older crash box tranny. I'm not familiar with them but older trannies often had straight cut gears rather than helical cut ones. The bolt pattern on PTOs has been pretty standardized for years.


Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.