Profile Topics Started Replies Created Engagements Favorites Search replies: Forum Replies Created Viewing 1 replies (of 1 total) Author Replies September 29, 2016 at 3:36 am in reply to: ETCG Answers Questions Live #74 (AMA) 9/28/2016 #869257 KenParticipant Hey Eric, Way back when you replaced a 5.3l LS engine and transmission into a suburban. Did you have to swap PCM? Did you get the same year engine? I have a rebuild 03 5.3l that I want to but into a 05 suburban. Ideas? Author Replies Viewing 1 replies (of 1 total)