To20/to30 parts interchangeability

Besides the obvious oil pan and other to20/30 differences what all parts will interchange between the two of them? I inherited a ton of to20 parts, head, valve cover, pto shaft, camshaft, lots of gears for transmission and rear differential, hydrolic pump and so forth.
 
Most parts will interchange, however there are a few things that are different. Your best bet is to get a parts book that covers the TO20 and TO30 which will tell you if a part fits both, or just one or the other.
 
TO-20 /TO-30 engine internals are different.
Most the rest is the same.
TO-30 uses larger valves in the head.
 

Welcome to the forum.

Please start a new post of your own, then responses to your questions won't be intermingled with the responses to the person who started this thread.

Details on what you need, or are trying to do, will get you better answers quicker. What are you looking for as far as a transmission diagram? A parts breakdown or service manual type info? There is a parts book for a TO20, and related models, online on the N tractor Club site. This site won't allow a link to that site, so you will need to enter it as a web search in your browser. Enter: n tractor club to20 parts book, as a search and you should be able to find it.
 

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