<strong>Yahoo Message Number: 87318</strong>Back in '96 we would wire onto Allison special function plug coming off the VIM box to use the signal of it down shifting to a relay to active the Pac-brake. Think it set ranges was 65,55,45 would have to look at my notes anyway. Now for '00 Allison would interface with the engine's for the Jake brake, which the engine maker would supply the...