High speed gear install trouble

[Xtreme Cartz]

I just finished installing a set of high speed gears in my G2 rear end. I noticed when I put the diff case back together and spun the input shaft, it was hard to turn and the F/R gears wouldn't change. As far as I know I put everything back the same way I took it out, with the exception of the governer weights. I unclipped the weights and got rid of them because it looked to me like they could hit the smaller of the two HS gears. I also got rid of the bunch of washers that work with the governor. It doesn't seem like they have anything to do with my problem. I ended up splitting the diff case open again, rechecked everything and tapped on the f/r shaft which got it working. I put it all back together and it is still hard to spin the input shaft. I thought maybe this is normal so I took the cart out for a drive and it rode good at 33 mph. I heard no weird noises either. Came back and felt the differential and its burning hot at the top near the input shaft, cold at the bottom.

Did I do an oopsie somewhere?