The mechanic installed a good working order transmission and transfer case. When put into gear it will not shift out of 1st gear? He I find out now is not even certified shade tree mechanic. The 1st thing I found was the transmission had 4 quarts over filled, the transfer case vacuum line had a plug in it ( not hooked up). Transfer case was low on fluid, 2quarts. I fixed these problems but it did not correct it ( shifting out of 1st ). I noticed the transmission kick down line was not hooked up, but haven't corrected that yet due to wrong shift linkage plate. I'm not sure I installed the vacuum line in the correct vacuum source.