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Off-Road Econoline Gears - 4.56 or 4.88?

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Old Jul 24, 2020 | 07:05 PM
  #1  
Jeff Cremer's Avatar
Jeff Cremer
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Off-Road Econoline Gears - 4.56 or 4.88?

Hello!
I own an off-road tourism company in Medellin, Colombia. I'm fixing up my E350 Econoline Van to use for backcountry tourism.

I would like to change the gears and add an Eaton TrueTrac locking rear differential.

I’m going to be using my van for almost exclusively off-road and back road driving in the Andes. Nothing technical but lots of dirt roads and mud. I currently have a Dana 60 with 3.55 gears. The van has 33” BFG KO2 tires and is basically the slowest vehicle I have ever driven. I almost never get on the highway and the van will rarely see over 50mph.

Do you think that I should go with 4.56 gears or 4.88 gears? I did some research and saw that 4.10 would get the van back to stock but I was thinking that a little more low end might be better for what I do. Thank you for all your help!!


Terrain - You can see the terrain that I'm planning to drive in here: =AT0MVxrvWnGDBY8-DiOI6QqNJd5JWraaRxJVhNPU6xo8IuXS8OUxihMx0ZRYcATcS-QYhpoO7pOeZTm2NLKmgTgJ1N5PCZQFVxFxD5oM0RLyy4GPeqfu x3N6ugYXQ1-6G7yiHXlSb0t5upFexVsSzWs8RJSflQ4R0nM3J0FF9esvqiNey oRQfpoc7cTbKNVEE5NFuyJ5Mox6jewV]https://youtu.be/pxhFzziiiaI?t=187

Van Specs:
  • 1994 Ford E350 Econoline Club Wagon
  • 5.8L / 351W
  • E40D
  • 6" Weldtec Lift
  • 33" BFG KO2 tires
  • Dana 60 with 3.55 gears

Ford E350 Club Wagon - 5.8L / 351W - E40D - ColombiaMotoAdventures.com
 
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Old Jul 25, 2020 | 11:07 AM
  #2  
tjc transport's Avatar
tjc transport
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either gearset will do better than what you currently have.
going with the 4.88 gearset will give you a better gear for larger tires if you decide to go to a 35 inch.
 
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Old Jul 28, 2020 | 11:26 AM
  #3  
seemoremud's Avatar
seemoremud
Mountain Pass
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Go with the 4.88. That old Windsor will thank you
 
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