400AT front diff swaps into the 350 Ranchers. 450 is wrong gear ratio.Thanks, The reason I found this forum was looking on other information. I was looking at a 450 foreman it has an electric 2wd to 4wd. It in the front differential and i'm thinking it might fit on the 350 rancher. I'm gonna start looking for parts and let yall know if it will work or not.