Transmission problem
2003 Lexus GX 470 V8 All Wheel Drive Automatic 10000 miles

i got a new silanoid want to try and fix it myself but no clue on where to start it wont go over 40 it shifts hard and i was told i have to take out the transmisson to get to the e silanoid if u can give me some tips or send me a diagram too help me do this please