if i remember correctly when the 4eat is in the D position power is spread 90% to the front, 10% to the rear
in the 3 position - 50% front and rear

so i've been wondering,
is it potentially hazardous to switch from D to 3 while at a roll or accelerating/decelerating?
or from 3 to D while accelerating/decelerating?
is it bad for the transmission to be in a 50/50 split in normal DD?
i've noticed the engine stays at a higher rpm in 3, so is it safe to assume i'll be getting less mpg?

thouht i'd ask before i continued testing my way into a blown diff.