ok, so i just finished the build of my new pti goliath, i took me a little over 5 hours but i got some kinks to work out.im losing power either in the center diff or in the axel diffs when the truck comes up to somthing that it cant climb(wall/somthing too tall) the motor still runs but the wheels arent moving same thing happens if i go full throttle from a standstill or on a hill. im thinking maybe i tightend the diffs too much in an attempt to make the more or less locked or do you think the center diff was put together too loosely? IDk for sure im just guessing ere but i gotta go to work and tr and fix it later. i appriciate any help/suggestions/comments