Twin t case vs single case w 4:7’s

[Rem416]

I have a 1979 Sr 5 with a single t case but 4:7's were added to that t case when it was rebuilt. I'm curious if keeping one low geared case is better for simplicity and dependability or is the twin case set up just as dependable as a single case. I'm moving back to Alaska in a year or so and I want the truck to be as basic and dependable as it can be. If two cases doesn't necessarily effect dependability then that's what I'll more than likely go with.
Right now w a stock 20r the truck runs great on and off the road. I don't beat on it all. 

[gnob]

I personally think duals are a better choice.  I would recommend 23 spline input shaft in rear case.  Theres alot to be said about stock 2.28 low range, especially in something not heavily modified.

[mudmaster]

I'm running a 4.3/TH350 with a single 4.7 case

[:(worstgen4runner]

2 cases will not affect dependability, it's a very reliable setup. You will, however, have to lengthen the front driveshaft, shorten the rear shaft(add double cardan joint), cut a hole in the floor, get a new transfer case mount and extend the speedo cable besides getting another transfer case and an adapter.

[Snowtoy]

There should be no issues with reliability with duals, as long as the install went together correctly. 

Have you done any driving on the street in the snow and ice with the 4.7's?

If it were me, I would opt for duals, having multiple gear choices is always useful.

[dbl-low]

I have duals with 2.28 in the front and 4.7 in the rear, and honestly I mostly use the 2.28. The 4.7 is nice to have, but I only use it on major obstacles.
Been running this setup for years without any issues. Go duals!

[Lewis Hein]

I have a single 4.7 case and I'm happy with it. That said duals would be nice but if I had only one t-case I would rather have the 4.7 than the 2.28.

[dbl-low]

Yeah I think I agree with you on that, if I only had one it would be 4.7. Can always just start out in 3rd gear

[[email protected]]

single 4.7 is easy to install , but most of the time I would like to have 2.28 between obstacles . Ill probably go dual cases soon .

[Rockcrawlintoy]

I would do stock duals. Losing stock low sucks. I have a single 4.0 case now and it sucks noting having low. My last rig had stock duals for a long time and it was great for the snow and technical stuff. I eventually went with dual ultimate and loved it more

[un4seen4]

dual with a 4.7 in the rear for me and the flexibility is very nice, I normally putt around between obstacles in 2.28 and then depending on the obstacle pop over to 4.7 or double up.

I think id rather have two 2.28s over one 4.7 personally if I had to choose.