I almost forgot
The DTRS (digital transmission range sensor) in the 4r70w CHANGED in 98 also

96-97 are analog signal to pcm
98-05 are digital signal to pcm

So you will want to use the dtrs from your 96-97 PCM if you choose to use the 98+ trans in those trucks

96-97 PCM:
5 wire mas
3 wire CPS
analog instrument cluster
analog DTRS
no PATS

98-01 PCM
7 wire MAS (IAC now inside mas sensor body)
2 wire CPS (cps gets ground from grey/red sensor signal return wire)
digital instrument cluster/gages
digital DTRS
PATS

Some changes were 98.5..... at same time as returnless fuel, cast manifolds, etc

96-97 4r70w solenoid wiring:


98-01 4r70w wiring (close enough):

Last edited on Sun Nov 4th, 2018 11:39 am by 410customs