I just rebuilt my trans and after install I drove the truck and it when it tried to shift into 3rd gear it acted like it went back into 1st gear. Put the truck back on the left and when I used snap on scan tool to put trans into 3rd gear it stopped the rear wheels from spinning. It does the same in 4th gear. They spin fine in 1st and 2nd. Pulled the codes and I’m getting P1810.