[Farmall] Farmall pto

[Kevin Bish]

Does anyone on the list know if a Farmall 400, and a Farmall 350 Independent 
PTO will interchange? I have a friend that says his pto on his 350 Farmall 
rowcrop, is really vibrating when he is turning with his brush hog mowing. 
He said it is the pto unit on his tractor, and not the mower making the 
noise. I have a pto unit from a 400, and wondered if they would interchange? 
Thanks, Kevin.