I noticed a while back that my slip yoke seal on the rear of my transfer case was leaking a little. When I pulled the driveshaft off, it promptly deposited about 0.5 quart squarely on my garage floor. I checked the transfer case level and it was overfilled (my thanks to the previous owner). Squared that away and my U-joints, saving the seal for another day. Last weekend I replaced the slip yoke seal, and the transfer case was overfilled again. Due to my transmission now being a little low, I am deducing that a seal separating the transmission and transfer case is allowing fluid to enter the transfer case, especially since my new seal is leaking a little after being dry for two days. Anyone have a similar problem? If so, how big of a job is it to fix it? TIA!