just wanted to let everyone know i switched to a 2000 sd pcm and 4r100 in my 95 cc/lb 4x and my truck ran flawless for 500 mi today half of that towing a 8-10k trailer. the pcm swap was pretty straight forward , lots of book work and the rest moving wires. my truck is not stock it has a irate t4 s366 ,99 intercooler , t500, mbrp , 238/100 , gearhead tunes , e fuel , bts 4r100 . im just impressed how well this thing runs compared to my 01 sd with intake exhaust and chip. towing in the hills i never got over 1100* deg. i love the shifting with this setup much better than the e4od the idle is smooth . soon i will post up all the info and whats involved.