This may be a stupid question, but what are duels?  

Duel carbs or duel exhaust?

Dual Wheels?

If you are Irish would they be Odouls?

I just see people list for example: 86 sammi, 22re, duels, beadlocks, locked, and linked  What does duels mean?  Are they talking about duel lockers?   Can't be duel exhaust with 22re, and no I don't think they are talking duels on wheels. I don't know either.

In that case it is dual Transfer Cases, also referred to a doublers.  You can get kits to stack Toyota TC gear boxes together, with two gear boxes depending on gears in the gear boxes you could get up to four different ouputs.
There are way to do the same thing with Suzki TC's, but it is much more involved/harder to do.

What do you achieve by doing this?

It gives you tons of gearing options.  Low high, high low, low low high high

A duel, would be like arranged combat (like a gun fight) between 2 people.
Duals, when talking about an offroad vehicle, probably refers to 2 transfer cases.

Now I have a dumb question.    Why would you want a High low, or a low high?

Now I have a dumb question.    Why would you want a High low, or a low high?

Gearing options.

Quote from: fixed blade on October 24, 2012, 07:28:25 PM

Now I have a dumb question.    Why would you want a High low, or a low high?

Gearing options.

You would have highway gears - high, high (same as high range).
You would have back road/off road gears - low, high (same as low range).
You would have crawling gears - low, low (twice as low as low range).

If one of the boxes has a different low range (usually about twice as low) then you would have:
high, high - highway
low, high - back road
high, low (lower set of gears) - crawling
low, low - serious low speed crawling

Because Suzuki Trackers/Kickers have a single gearbox&transfer case (one unit) making duals is difficult.  Also as the gear boxes are stacked together the drive train gets longer and the driveline has to be shortened, increasing the angle it has to run.  When the angle get to much equipment starts breaking.  Two door rigs do not have much space to start with.  Samurai's, LJ's, and SJ's have divorced transfer cases with a short driveline between transmission and TC.  You can see that shortening/eliminating/combining/stacking should all work to get duals.  Toyota TC gear boxes can be bolted together with adapters to stack them in a more ridged reliable manner.

Oh my bad.   I thought it was High rear axle, low front axle.   

That is for mud bogging.  Get that front end spinning twice as fast.