Question Time

[TexasArmadillo]

The above link is from the Serious Explorations board. What I am trying to figure out is what is a "Strong Box". At first I thought it was a slang word for a transfer case. However, as I look at it more I'm thinking it might be a transfer case mod. Do yall know what this is and what it does?

Sorry if this is a total noob question.

[KF5ZXT]

A strong box is essentially a doubler unit, goes in between the transfer case and transmission to add in an additional low (sometimes rarely a high) gear to increase crawl ratio (or overdrive). In it's general use, it allows you to 'go into low range twice' effectively compunding your low range gears. For example, the Borg Warner 1354/1356 transfer cases that come stock in early Explorers had a 2.48 low range. The Strong Box has a 2.48 low range. When both are engaged, you have a 6.15 low range.

[KF5ZXT]

Also, make sure you do some research on this particular doubler:



This is the underdrive unit that is on my wish list:

[TexasArmadillo]

Thank you Professor. I had a feeling it had something to do with a post transfer case application. I like one on ur wish list. Also, there marketing page was well built. That other one looks scary. I wonder how many failures it has lead to in the field. Thanks again for the info. I am still trying to build my knowledge on more advance off road modifications.

Sent from my iPhone using Forum Runner

[KF5ZXT]

Feel free to keep on asking. If someone on here doesn't already know the answers, I don't mind doing research and learning a little something myself. Unless there are wires involved, then you'll need to find someone else. Hahah.

[Justin Klare]

I have a doubler in my explorer.

[KF5ZXT]

[Justin Klare]

And that is why I lack participation.

[KF5ZXT]

That comment was not participating, it was making a random ass comment that had zero value.