i have a chance to buy a new F150 ecoboost scab 4x4 with 20 inch rims, what gears are the best to go for?

 

Are you going to tow a travel trailer? If so a 3.73 would be a good way to go.

 

It all depends on what you do with the truck, if you pull regularly anything over I would say 5,000 lbs I would buy a truck with 3.73 gears, if you only pull a bit under 5,000 3.55 would be good, and if you use the truck just as a daily driver 3.31 would be the most fuel efficient, Rim size doesnt make a difference because the overall diamater of the tire is the same as if it was only 17 inch wheels. Now dont get me wrong, you can tow more then 5,000 lbs with 3.55 gears but 3.73's would just help you out that much more. Hope this helps ya

 

If 5.0, I personally recommend 3,73's. But, it depends a lot on where you live and if your going to tow. I live in WV with lots of hills. The 3.73's are just right to keep the engine where it does not hunt for gears on the interstate. I would have checked 4.10's if I could have. My best mpg so far was 21.9 mpg on a beach trip last summer. Local driving averages mid 16's.

 

I just re read and seen Ecoboost. 3.55's would likely be a great all around gear. My bad.

 

It all depends on how much towing you do or how you mod the truck?? If you plan on putting on larger tires 3.73's would be the way to go.

 

3.55

 

Yeh im probly not going to do alot of towing, just looking for the fastest qt mile times, and best fuel, i would maybe tow a cattle trailer once in a while, but nothing more. going with a 13 scab 4x4 i think, with the 302a package, and 20 inch rims, color i havent decided on yet, thats a tough one

 

i see your in Ont, what are you getting for liters per 100 k on that Eco

 

Aside from towing, don't overlook the payload ratings. 3.73's will give you a much higher payload rating.