Then two top ones area real BEOTCH.
The fuel feed and return line bracket fastens to the stud top part of the two top bolts.
The bracket must come loose first then the bolts can come out.
I have in the past changed the bracket arrangement and rerouted the fuel lines to make access to the top bolts far easier.
To real long extensions and a wiggley with a deep socket is also doable to get the two top bolts.
Remove the rear transfer case/tranny mount and drop the t case/tranny down some and this will help get to the bolts.
There area total of 6 bolts, two on each side and two on top.
I like to remove the top two and the bottom two and then once everything else is cleared, remove the middel two.
What you dont want is to stress the aluminum tranny case by having either the top or bottom bolts only.
Once your engine is ready to come out, you can support the tranny with a jack and then lift the engine out.
On some trucks, in order to get the engine to clear, you must remove the front RH motor mount from the frame. This allows the engine to be shifted slightly to the RH side and the LH mount will clear and allow the engine to slide forward.
Be sure to unbolt all 6 flex plate bolts and shove the converter back into the tranny a bit.
Its not as tough as it might seem.
As mentioned, the ratchet box wrenches are a PLUS and removing the fuel handler will help a bunch to open the area up.
Missy