Gear Vendors for Excursion V-10 4.30 rear
I have a 2001 Excursion with a V-10 and 4.30's. I tow a 33 foot high profile TT that has a gross weight of 9,000 pounds. I found a great tune, 5-star 87 performance, that made a big difference. I...
Forum Discussion
jspringator wrote:
I can get a lower gear by punching out of OD and putting it in 3rd. Probably roughly equivalent to the 4.88. I'm looking for something between OD and 3rd. If my non-towing mileage were better I would get much more use from the truck. If I could get 18-20 mpg or so consistently on the road, I would drive it a lot more.
It did the best it had ever done on my last tow with the performance tune. I guess after that performance, I was willing to make a commitment to the truck. I'll probably do this within the next year.
Nope! the final drive effectively changes the ratio of each gear in the trans. so going from a 4.30-4.88 would net you more "leverage" and move the powerband up in each gear. so if the truck drops out of O/D when towing in a hilly area with the 4.30 a switch to 4.88 will allow the truck to stay in O/D longer and make better use of the available power.
