1996 LX-188 John Deere
I had my transmission out for a welding repair to the frame so I turned it upside down to drain all the old oil I could and replaced it with 10W30. Now the transmission growls loudly and won't pull up even a slight grade after about 30mins of mowing plus it's very hot to the touch. Fan is working ok and everything is hooked up properly. Any ideas please. Thanks.