a doubler is a reduction box of a transfer case bolted in front of the regular 2 speed t case essentially "doubles" the reduction .
Those that I posted are the core planetary of a t-case ripped out and stuffed in a handy cylinder, the point of these are to removed the unneed bulk of a second t-case.
These would fit in the same space but give a 20% under or over as aposed to the 2.71 under of the dubbles I posted. The only t-case I see with any other ratio is a np203/np205 that has a 1.96 ratio. This us gear and doug nash unit would be imposable to find, so dont see these as a option.
https://www.oilburners.net/threads/us-gear-dual-range-doug-nash-info.65234/
What's the actual use for this rig?
Its use right now is running supplys to my house, this includes a 160 mile run there on the highway. So most the mileage Im putting on it is highway and around town is only short trips, would like to not be above 2800rpm on the highway. This is it with 2 tons of gravel and the handy crane I have to pick up heavy stuff to get in the bed. The run is not possable with the gravel since cant do more than 50mph so I am getting that down there. I would not mind having this to go offroading but is not current thought, it would need more done till it is there. With primary need to move waight and travel a distance, I am leaning to the brownie as the most practical option.
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