Atlas or Dual Cases?

[42s on u]

So what's your opinion on transfer cases? Stock case, Duals, Duals with 4:7's, or Atlas?

I really want to do a different t-case set up with some sort of gear reduction.

I've heard there's potential issues with duals with 4:7's in the front case, it puts too much strain on the stock chain drive case. (I have no experience with this setup, I've only had gear driven set ups)

Duals, I've heard with the stock case it makes the set up a bit long. (again, no first had experience) I've always had case gears so I don't know what duals will be like with out them. I know the gear selection options with duals are amazing.

Been in contact with inchworm and the lefty billet case is not available, it may be in the future but it's not as of now. Duals with a billet lefty case and 4:7's is what I really wanted, It seemed like a great set up because it got rid of the chain drive case and shortened up the length of the drive train.

The other option is an atlas...I've always wanted one but never have had one.

Anyone have any input or opinion?

 

[snivilous]

Atlas because of awesome.

 

[nevada]

ive been out of the loop for a while, is the atlas a 3 speed?

if not, other than strength, what are the benefits of it?



unless running BIG power, and pushing BIG tires, I don't see the need for an atlas.

 

[KidVermicious]

I've heard there's potential issues with duals with 4:7's in the front case, it puts too much strain on the stock chain drive case. (I have no experience with this setup, I've only had gear driven set ups)

Does anybody make a 23 spline or whatever to go between the 4.7 and the stock case?

Almost make it worth an SAS just to get a passenger drop shaft so you don't have to reuse the stock case.

 

[Kraze]

An Atlas 4 speed would be niiiiiice.

 

[42s on u]

ive been out of the loop for a while, is the atlas a 3 speed?

if not, other than strength, what are the benefits of it?



unless running BIG power, and pushing BIG tires, I don't see the need for an atlas.

Atlas comes in 2 flavors, 2 and 4 speed.

Benefits, compact package, not a lot of adapters stacked up, heavy duty, front or rear disconnect capabilities. Low gear ratio variations(4 speed).

 

[Brian757]

Atlas 4-speed and never look back ...Unless your looking at your billing statement!

 

[Kraze]

Atlas comes in 2 flavors, 2 and 4 speed.

Benefits, compact package, not a lot of adapters stacked up, heavy duty, front or rear disconnect capabilities. Low gear ratio variations(4 speed).

If you go the Atlas route, do you know if they make an adapter that will mate it to our tranny?

 

[white_n_slow]

What front axle are you planning on running? Or stock IFS?

If you're going to re-do everything I would get a passenger drop axle and two gear driven cases (4.7 in the rear). Mainly because they're strong and they're cheap.

Do you know if they even make a version of the atlas that will bolt up to the r150f? Or a Toyota>atlas adapter? I can't find any info on advance adapters website. :edit: Nevermind, I found the adapter, it's 400 bucks. So that would bring your total to about $3,000 to run the atlas 2-speed or close to $4,000 for the 4-speed, not including incidentals. Unless you're made of money, I don't see the value in that.

:edit: :edit: FWIW, I talked with Scotty at Addicted at some length about drivetrain options and he didn't really see the harm in using a gear drive case in front of the chain drive. I suppose it's all in how much you abuse it though.

 

[42s on u]

If you go the Atlas route, do you know if they make an adapter that will mate it to our tranny?

I'm waiting for a return email from advanced adapters as we speak. I'll post it after I get it.

 

[TheeMikeB]

Marlin has the lefty listed on his site as in stock.

Lefty

 

[Kraze]

Nevermind, I found the adapter, it's 400 bucks.

Link?

I think I want to change my mind. Whatever you do, don't do an Atlas. Or if you do, don't post about it here. I just know I wouldn't be able to resist temptation if I see that someone put an Atlas 4 speed in a 3rd gen, and my wallet just can't handle that haha.

 

[42s on u]

Marlin has the lefty listed on his site as in stock.

Lefty

I just saw that a few ago, just shy of 3G's after shipping and that doesn't include a crawl box.


Marlin Crawler Lefty Tacoma FJ Cruiser Tundra Transfer Case Setup

Left-hand Front Output (Lefty)

Marlin Crawler is proud to offer the Inchworm Lefty, a left hand drop geared transfer case. We are now a full Tacoma, FJ Cruiser, and Tundra Rock Crawling drivetrain service shop. Our website will soon feature complete drivetrain options for your 1995 and newer Tacoma, FJ Cruiser, or Tundra, 4WD or Prerunner, automatic or manual transmission, 4-, 6-, or 8-cylinder applications. Full installation now available.



$2,589.00

Front Adapter Plate:

None, (-$349.00)

34-4CX (3.4L Manual/Auto, 2.7L Auto)

30-spline Cromoly Front Output Shaft

 

[Brian757]

I'm waiting for a return email from advanced adapters as we speak. I'll post it after I get it.

50-5710 : Toyota Tacoma Tranmission to Atlas transfer case Adapter Kit (23 spline) | Advance Adapters

Is this up your alley?

 

[42s on u]

What front axle are you planning on running? Or stock IFS?

If you're going to re-do everything I would get a passenger drop axle and two gear driven cases (4.7 in the rear). Mainly because they're strong and they're cheap.

Do you know if they even make a version of the atlas that will bolt up to the r150f? Or a Toyota>atlas adapter? I can't find any info on advance adapters website. :edit: Nevermind, I found the adapter, it's 400 bucks. So that would bring your total to about $3,000 to run the atlas 2-speed or close to $4,000 for the 4-speed, not including incidentals. Unless you're made of money, I don't see the value in that.

I'm really trying to stay IFS, I already have all my other toy on 1tons and 42's

I do have another 60 front, and a toy solid axle with a set of 23 spline duals with 4:7's sitting in the garage.

 

[42s on u]

50-5710 : Toyota Tacoma Tranmission to Atlas transfer case Adapter Kit (23 spline) | Advance Adapters

Is this up your alley?

Yep that's the adapter...

 

[nevada]

I'm really trying to stay IFS, I already have all my other toy on 1tons and 42's

I do have another 60 front, and a toy solid axle with a set of 23 spline duals with 4:7's sitting in the garage.

if you're going to stay IFS, why would you even be considering an atlas?

 

[white_n_slow]

I'm really trying to stay IFS, I already have all my other toy on 1tons and 42's

I do have another 60 front, and a toy solid axle with a set of 23 spline duals with 4:7's sitting in the garage.

Then wheel that one and stop flushing your money down the toilet!

 

[IBallEngineer]

If you go the Atlas route, do you know if they make an adapter that will mate it to our tranny?

They do make an adapter for both the R150F and the A340F transmissions. They don't offer a lot of Toyota stuff, because the market is pretty much covered with Marlin and Inchworm.

The attraction is simplicity, those I've known with dual cases will often forget what hi/low combination works best in different conditions. Not that that is a HUGE problem, I like having options. Shorter set up is cool too, but in the end it will be about cost and preferences. A 4 speed Atlas with adapter will run you over 4K, not that a Marlin dual case set up is cheap, maybe just a little cheaper. But both require crossmember work, shifters and driveshaft mods.
I say go with your gut!

:couch2:

 

[42s on u]

if you're going to stay IFS, why would you even be considering an atlas?

I said I'm trying... There's nothing that say down the road this won't be on 60 and 40's. But for now it's a nice DD, and weekend wheeler. I do a lot of snow wheeling and it's a real pain in the ass to drag the trailer queen out for snow runs.