I replaced my clutch last Monday and everything worked normally. We got about a foot of snow and after driving in a it for an hour the speedo stopped working. Tach, odo and cluster lights all function normally and it's not throwing any codes. Has me thinking it's a loose/bad connector somewhere. The 5 speed only has one plug that goes in the top and it's on tight. The vacuum lines to the t-case are all in good shape and are on tight.

What sensor feeds the speedo? Is it the one on top of the tranny or is it another at the wheels or diffs?

 

It should be on the transfer case