So im gonna tell the whole story and you guys tell me what you think.

I was getting ready to drop my trans pulled the DS bolts something came up and had to stop, few days later there was a pretty good ice storm coming so I go out to move the truck around as to get all the cars in the shop. Start up the truck drive into the yard hear a loud clunk and im like wtf was that I kill the truck and jump out, the effing drive shaft fell out cus I forgot about the bolts I removed, so truck wouldn't start back up it actually wouldn't do anything. Anyways I say F it cus I didn't have time to hassle with it. So after awhile I get the trans out, and the t case, hook the PRNDL back up and it cranks but wont start, its getting fuel but no spark. So I check all the fuses all good, change relays all good, check ny grounds, good, changed the crank pos sensor, changed the cam pos sensor, changed coil packs, maf, tb, pcm, MFNING SOB still wont fire, now please someone give me anotber idea! Lol