Hello all. 1st post for me. just finished changing diff fluid in 9.75-3.55LS-2001 have seen diagrams showing use of suction pump. experience today tells me there is no room to insert that large a hose into pumpkin. didnt plan on doing but thought i would give a word of caution to anyone thinking of it. learned a lot from this forum. keep up the good work guys. thanks to all.F150onlineforums