Look at the Explorers, They had everything from 3.08 to 4.10'a most were 3.73 geared, the bigger engines got 3.08's, the smaller got 3.55 to 4.10

 

They have overdrive, you seem to be missing it, put 4.10 in an E100 with a 170 and get it on the interstate! BTW Explorers have 29"/30" tires, do you know the difference in revolutions to the 27" tires on the mid Ford, just keep trying to argue.

 

Look it up

 

OK, OP has not responded, no need to argue when we don't even know what motor, trans, axle or budget he has, He lists as having an E200.

I may have misstated the ratios earlier, should have qualified that with a WAG alert.

 

Really, my friends with the inline vans have high gears, not suitable for towing, you want to keep ignoring your example, your 69 was a one on which meant larger tires, then you throw in the newer trucks, which have overdrive, giving more gears, THERE IS A REV LIMIT ON AN ENGINE, gears, and tire size are a big factor!

 

A friend put a Toyota 4 cylinder 22R into an Early Chevy, worked for an in town driver.

 

Early vans, 144/170, tiny tires and guess what? 3.00 to 4.57.
Econoline Axles

Page 6 here for 2nd generation vans, some 2.75s but lots more with lower ratios:

http://www.fordification.com/tech/rearends_ford06.htm

 

Wow, top speed 45!

 

Folks posting on the early van sites report having trouble making 60.

 

I rest my case.

 

I'm betting they were commercial vans for around town, as I said you'd not be able to get on the highway with them without blowing it up, I REST MY CASE! The guy who posted this was looking for mileage, something I guess no one else wanted to help with!

 

Look up all other Fords with 4 and 6 cylinder engines. Like Pintos and Mavericks. Falcons. The only Ford I found anything numerically lower than a 2.75 rear was a 78 Monarch with a 2.50 ratio. That'n had a 302 in it too. The 2.75 rears had 390's turnin em. Only time you'll find anything deeper than a 3.25 rear was in HP cars and 4wd trucks behind V8's

 

He will need a gear ratio that will best suit the rpm range of whatever engine he decides to go with, regardless of what the factory gears were. A gear swap isn't that big of a deal.

 

Speak for yourself,

OP is on to fitting a 302 into his Ranger.
https://www.ford-trucks.com/forums/1...eedometer.html

 

People think putting a small engine in a heavy/larger vehicle will give you better mileage. What they fail to realize is the smaller engine has to work harder then a bigger engine doing the same job. So you would gain very little benefit by swapping a small engine in place of a bigger one. If your goal is strictly mileage.