4 wheel acting up

I lifted my xj 2in, and lowered the TC with a skyjacker kit, when you go from 2wheel to 4 part time it engages great, when you then go to 4 full time it goes ok, but when Im in the snow/mud it kind of makes a clunk when I romp on it initially. Then when you go down to 4 lo and put it in drive it creeps forward then kinda jumps and then you are in 4 lo. Should I mess with the linkage??? let me know.

When ever you install a drop down kit you need to readjust the linkage so it fully engage properly...