Attention: TDR Forum Junkies 
a month or so ago I got an 041/2 in my shop w/ a pretty good (or bad) oil leak up front. I removed the fan & shroud etc and decided the leak was coming from the gear cover. so I removed the cover put in a new seal and re sealed the cover W/ gray rtv.
still had the oil leak. didn't help a bit. so he brought it back recently and I took it apart again. this time I determined the leak was between the gear case and block. I removed everything including the water pump so I could clean the area w/brake cleaner and air. it looked like about 4 inches of gasket was missing below and to right of water pump. so I cleaned the area as good as I could and used gray rtv on as much surface as I could . and two weeks later no leaks.
I talked to a local repair shop owner and he said he has seen two or three 3rd gen trucks leaking oil in same area. here is pics.
still had the oil leak. didn't help a bit. so he brought it back recently and I took it apart again. this time I determined the leak was between the gear case and block. I removed everything including the water pump so I could clean the area w/brake cleaner and air. it looked like about 4 inches of gasket was missing below and to right of water pump. so I cleaned the area as good as I could and used gray rtv on as much surface as I could . and two weeks later no leaks.
I talked to a local repair shop owner and he said he has seen two or three 3rd gen trucks leaking oil in same area. here is pics.
