i have a 93 4x4 dime, we just gothit by snow so i had to get it back together cause the fire chicken dont go in the snow. anywho was puttin a timing chain in it and didnt want to go through the hell of droppin the oil pan to get the cover back on. i tooko tin snips and cut off bout 90% of the inner lip of the bottom of the cover. then i filed it smooth and finished it off with a hammer back into shape(the tin snips distort part of it). i had to slip the bottom of the cover onto the front seal first then sorta pry it upward but it wouldnt go. found once you get the bottom to seat you press the whole cover down towards the pan and it slides right on and still seals well. i removed it and put the gasket to the block on and to be safe ran a bead of black rtv on the bottom of the cover and the seal. reinstalled and smoothed the rtv with my finger works mint. i normally wouldnt suggest this but it is hell on these trucks when 4x4 to put a timing chain in them, i will replace the cover with a new one when i put the new built engine in.