First of all, I find it's easier to work on these cubs when you are able to slide the engine forward, especially if you have drive shaft issues. Can't do that with studs sticking through the frame.
I'm with Jonathon. Find a cast iron oil pan and you're good to go. That's what I did to my 1650 when it had a bad pan. Never looked back.
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Josh
Diesel Cub Cadets...........
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