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Marlin doubler...crawler gear

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Old Nov 12, 2012 | 03:10 PM
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From: Chattanooga TN
Marlin doubler...crawler gear

My new to me rig has this.. stock Toyota front then 4:1 marlin crawler rear. What should the stock Toyota stick be in for street use? It has 4hi neutral and 4lo then 2 hi.. i figured 2 hi for obvious reasons...but i cant seem to get it to that 2hi position
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Old Nov 12, 2012 | 03:59 PM
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From: 46 50' 36.82'' N 122 19' 41.01'' W
Your saying it wont go into 2hi, or you cant find it?
And yes it should definitely be in 2hi for road use.
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Old Nov 12, 2012 | 04:02 PM
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The kid said that for street driving (2wd) the stock Toyota stick just gets pulled all the way back..he said it doesn't move left or right cause of the doubler..just forward/backward. He said for street driving just leave the Marlin sticks in neutral and the toyota stick all the way down (which is indicated as 4lo).
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Old Nov 12, 2012 | 05:07 PM
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put the yota stick in 2hi. you dont want to be in 4 on the road. its your transfer case gears that your confused about. you have dual transfer cases. look it up on here to see how it works. Your so lucky you have that haha
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Old Nov 12, 2012 | 05:16 PM
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The Toyota case only moves forward and backward..it won't move to the side (where 2hi is). He said that cause the doubler makes the stock Toyota stick:
Low gear
N
Hi

4wd is controlled ONLY by the marlin stick... so he says.
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Old Nov 12, 2012 | 05:45 PM
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You got any pictures? I wish I had duals...
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Old Nov 12, 2012 | 05:46 PM
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wow, alot of confusion going on here. first lets get the which stick is which game over with.the stick closest to the transmission shifter becomes a hi neutral lo shifter only in this set up. the 2hi is elliminated. lo will be all the way forward, neutral is middle , and hi is all the way back.this is your doubler. use hi for street use. next is your transfer case, the shifter closest to the seat.it can be twin sticks or one stick.one stick set up will work like a stock case.2wd is towards the drivers side and forward 4wd hi is all the way back, nuetral towards the pass side and foward one notch, 4wd lo is pass side and forward all the way, or two notches.use 2wd for street use. twin sticks seperate the hi lo part from the 2wd and 4wd part of the case so that they can be used independantly. left stick forward 2wd back 4wd right stick back hi, middle ntrl, forwaerd lo. use 2wd hi for street.

Last edited by lobukbuild; Nov 12, 2012 at 05:58 PM.
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Old Nov 12, 2012 | 05:54 PM
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i suggest finding some one local that acually knows how one works and have them show you in person how to use them properlly. it can be confusing unless you have the whole set up out of the truck and can see what was actually done. the use of terms like stock or marlin are only referring to the company that built them and may not reflect on how they are being shifted. the front case is only half of a tranfercase, the part that goes from hi to lo. the rear case is a full case that controls 2wd 4wd as well as hi and lo. ultimately you can use low and low in 4wd offraod for creeping .

Last edited by lobukbuild; Nov 12, 2012 at 06:11 PM.
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Old Nov 12, 2012 | 07:04 PM
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From: southern NH
your 4 to 1 gear ratio that you mentioned is an extra bonus. first your need to understand that on stock set ups the ratio for hi is 1:1 the ratio, and for lo is around 2.28:1. the 4:1 you have (probally actually 4.70:1) is twice as lo as the stock ratio. using the 4.70 gear in one case and a 2.28 in the other case gives you three ratio options to use. assuming the 2.28 is in the front case and 4.70 is in the rear, with the front shifted to lo 2.28 and rear in hi 1:1 your at normal lo ratio. shift the front to hi 1:1 and rear to lo 4.70 you are twice as lo . shift both cases into lo 2.28 and 4.70 combined and you will be three times lo = about 6.98:1 ratio. with regular shifters all of this would be in 4wd (for the most part), with the use of twin sticks on the rear case you would be able to shift the left lever into 2wd while using any of these ratios. this option would help make extreme tight turns and menuvers easier under some conditions for a more experienced driver. basically you have the kick a$$ set up that everyone druells over,with or with out twin sticks. learn to use it and use it well !!
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Old Nov 12, 2012 | 07:18 PM
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From: 46 50' 36.82'' N 122 19' 41.01'' W
Wow. Now im confused.

Anyways. What gear are you in?
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Old Nov 12, 2012 | 07:21 PM
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From: 46 50' 36.82'' N 122 19' 41.01'' W
And once you do figure it out label your shifters. Like the guy before you could have done for $5 more. He already spent $1k plus. Why not get the cool shift knobs that say what is happening.
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Old Nov 12, 2012 | 07:35 PM
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From: matawa,wa
Or make you a little plaque for the dash with the shift pattern. That's what I did in mine.
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Old Nov 12, 2012 | 08:05 PM
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Crawl box --front box will only go low(stick forward) and high(stick to rear)
Rear box
2wd high shift to left and forward..high rang 4wd, pull to rear.
Over to right and middle = neutral, push it forward gives you 4wd low range..

And I didn't know Marlin had 4.0, maybe 4.7...advance adapters I believe had a 4.0 low range
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Old Nov 13, 2012 | 03:08 AM
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From: Chattanooga TN
Originally Posted by lobukbuild
wow, alot of confusion going on here. first lets get the which stick is which game over with.the stick closest to the transmission shifter becomes a hi neutral lo shifter only in this set up. the 2hi is elliminated. lo will be all the way forward, neutral is middle , and hi is all the way back.this is your doubler. use hi for street use. next is your transfer case, the shifter closest to the seat.it can be twin sticks or one stick.one stick set up will work like a stock case.2wd is towards the drivers side and forward 4wd hi is all the way back, nuetral towards the pass side and foward one notch, 4wd lo is pass side and forward all the way, or two notches.use 2wd for street use. twin sticks seperate the hi lo part from the 2wd and 4wd part of the case so that they can be used independantly. left stick forward 2wd back 4wd right stick back hi, middle ntrl, forwaerd lo. use 2wd hi for street.
Your a big help. Thats what i was saying...(stock t case shifter is alll the way back for hi gear). Also the kid said the hubs needed to be locked...is that a requirement too?
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Old Nov 13, 2012 | 03:13 AM
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Oh...some pics of the rig.. on top of the Crawler setup ive got front and rear lockers, full underbelly skid, sliders, nice winch bumper with a warn 9500...bilstein 5125s (will soon be up for sale), brand new km2s..pics when i get to work..app is being homo
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Old Nov 13, 2012 | 04:27 AM
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Originally Posted by DaveS
Here is the twin sticks..Still not sure exactly how the hell they work.
Right in 2WD. Left in High. 2HI. Done.

:wabbit2:
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Old Nov 13, 2012 | 05:07 AM
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Alright, I got it down. Now to get out on the rocks
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Old Nov 13, 2012 | 05:22 AM
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Mentioning you had twin sticks in your first post would have been a big help...
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Old Nov 13, 2012 | 05:28 AM
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Originally Posted by dropzone
Mentioning you had twin sticks in your first post would have been a big help...

For some reason I thought i did. So..apparently this is a pretty desirable setup? Ill be totally happy with the truck once I get it cleaned up inside, and figure out what to do with the chipping paint on the outside.
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Old Nov 13, 2012 | 09:20 AM
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like said try to find some one to show you in person it will be alot less confusing. you asked about locking hubs, thats the simple part. basically with them unlocked your tire and hub will spin freely on the axle (disconnected). when locked the tire and hub are engaged with the axle (connected) allowing the front axle and drive line to turn the front tires (4wd). lock when off road , unlock when on street. being able to unlock the hubs (disconnect) saves unnessesary wear of the front end parts and also helps to increase mpg by not having all those parts turning and causing drag. also if your using lockers in the front differential youll get extreme binding on the street if your hubs are locked. youve got one heck of a rig there, learn to use it and dont be afraid to ask for help while out offroad. most toyota folks are more than willing to help out another toyota. person to person help is the best way to learn because you can see things as its done, not read and go try it out later to figure out what they ment.
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