What should the diff ratio be on a Ford Transit?
What should the diff ratio be on a Ford Transit?
The true solution is a different axle ratio, achieved by an axle or diff change.. if you have a 5.11 or a 5.13 currently, an indicated 70mph will be made using about 3500rpm..Anything over 3000rpm can be noisy..I’d recommend 1 full “point” so something in the low 4’s like a 4.27 would suffice without acceleration suffering too much.
What does the axle ratio of a car mean?
To me, an axle ratio describes the number of drive-shaft rotations that will cause a single axle rotation. Understanding this fixed relationship between the crankshaft and wheel rotations, helps me visualize how lower or higher axle ratios will perform for different engine or load applications.
What does rear derailer mean on Ford Transit?
The higher the axle ratio, the more engine rpms for a given rear wheel rotation. It might help to think of riding a mountain bike up a steep hill. The front derailuer (2 or 3 chainrings) sort of represents a variable rear axle ratio on your truck. The rear derailer (8 to 10 speeds) might represent the transmission.
Which is better 3.9 or 3.2 axle ratio?
A numerically higher ratio — say, 3.9 as opposed to 3.2 — can pull heavy loads much better but has a worse fuel economy and lower speed. By contrast, a numerically lower ratio has better fuel economy but worse torque and towing power. Which axle ratio is best for you comes down to how you want to use your truck.
The true solution is a different axle ratio, achieved by an axle or diff change.. if you have a 5.11 or a 5.13 currently, an indicated 70mph will be made using about 3500rpm..Anything over 3000rpm can be noisy..I’d recommend 1 full “point” so something in the low 4’s like a 4.27 would suffice without acceleration suffering too much.
How can you tell the axle ratio of a Ford truck?
There’s no question, the easiest way to identify the axle and gear ratio in your truck is from the door sticker. If you open the drivers door and look at the door jamb, you’ll see a sticker like the one shown below:
The higher the axle ratio, the more engine rpms for a given rear wheel rotation. It might help to think of riding a mountain bike up a steep hill. The front derailuer (2 or 3 chainrings) sort of represents a variable rear axle ratio on your truck. The rear derailer (8 to 10 speeds) might represent the transmission.
What’s the towing capacity of a Ford Transit?
2020 Ford Transit Maximum payload and towing capabilities are for properly equipped base vehicles with required equipment and a 150-lb. driver and vary based on cargo, vehicle configuration, accessories and number of passengers. See label on door jamb for carrying capacity of a specific vehicle.
