i put a rebuildt stock l92 into a 08 sierra. turned dod off and deleted vvt. truck starts and seems to run fine. using a 15 2500 6.0 intake and injectors. my issue is the 08 6.2 sierra denali file im using has a fuel pump control module, and the stock truck which was a 5.3 lc9 does not. What issues will i run into? Also what should i do to the transmission tune since it has a 4L60 in it and all the 6.2's used a 6L80. thanks for any advice