I didn't know wether to post this here or cummins forums but....I have a 01 2500 5.9 cummins 4x4 I had my tranny rebuilt about 15k miles ago and the other day it started slipping real bad so I researched online and I changed the govenor pressure sylinoid I didn't change the transducer cus I didn't relise I was suppose to till after the fact well it stoped slipping but oddly it shifts at around 2300 rpm's first gear mostly this is going easy on it I'm not sure why it does then when I had the tranny rebuild it did this but it slowly started shifting sooner more and more until now after I changed the sylinoid anyone have any idea as to why what could I do? Band adjustment?.. the tranny was rebuilt with better tc intermediat shaft shift kit stronger shift parts... thank your I apologise for the run on paragraph I'm on my phone

 

Adjust your TV cable (stickies or search). Bands have nothing to do with shift points.

 

I'd take it back apart and replace the transducer as well.