Ford trucks 84 and 94
 

I was wondering if i can bolt a 1994 f150 5 speed transmission and t-case up in a 1984 ford f150...any help would be

Sure, with enough money anything is possible.

I had a 1994 , stand shift 5 speed, regular cab, straight 6cyl, 8'bed, 7 1/2' fisher snow plow. Bought it new. Used it to plow my driveway 17 years. Then the body from the salt finally kept getting worse and worse. So I sold it. A great truck. But I've had a 2002, 2004, 2010 since then. Ford keeps making them better and better.
As far as swapping the tranny. That I'm not sure.