gear axle ratio question
Hi all, We got our Excursion back from the dealer with a new fuel pump. We have been talking about changing out the gears for better towing. Right now we have a V10 with a towing package and a 3....
Forum Discussion
BenK wrote:
The most accurate gauge in the dash is the speedometer...how else can the LEO's &a courts uphold the speed laws
The dash speedometer gets its input from one of the onboard computers, which can get its input from an ABS wheel (which one?), tranny tail housing, the tranny, our maybe the diff...*ALL* in concert in reference to the look up tables...why reprogramming on most is required
Or, be able to noodle the difference in your mind without reprogramming and adjust accordingly...
Different trucks, I drive the same Excursion as the OP, so my reply was in reference to how these wagons read the speed from the rear differential ring gear tone ring. A gear change will not affect the speedo as I said earlier. My comments were specifically directed to the OP as I have been there, done that with this modification on the same rig as the OP.
