4l60e to np241 4 Lo question

[79bonanza]

Ok guys I'm swapping a 99 5.3 4L60e In to my 91 k5. I'm going to run my same np241 transfer case. I was just wondering if my trans and engine are gonna freak out when I put the transfer case in low range and it changes the vehicle speed but won't change the gear or rpm. Won't my trans think it's slipping.

I know new transfer cases have a speed sensor on the front drive shaft as well and a sensor letting it know it's in 4 lo

So what do you guys think