Doubler adapter ??

skyhighZJ

skyhighZJ

Gov retirement < needs to live
Joined
May 31, 2012
Location
Aberdeen, NC.
Looking to purchase the adapter to join my 2 Toyota cases. Who has what, pros/cons. Not afraid to spend the coin but not gonna just pay for a name either.
 
I had great success with my trailgear one in the past. 22re with 40” tsls. No bearing failure or coupler spline issues. I wish there was a clockable option still out there. Marlin and inchworm are maybe better but have never ran them.
 
I guess I should have added some details. It will be a 22r/w56/dual stock cases (for now) on 37” ish tires. The reason I’m asking is the interwebs is full of debate cause Marlin is older and Trail Gear is cheaper and, and, and....
 
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Mine were stock cases with 4.10 in the axles and it was low enough for me at the time. My build is on hold at the moment because I have decided to run duals before I finish the rear links. I just don’t know have I will fit the shifters between the seats. The forward shift is already hard at the moment and it is in front on the seats.
 
Brownsxj said:
Mine were stock cases with 4.10 in the axles and it was low enough for me at the time. My build is on hold at the moment because I have decided to run duals before I finish the rear links. I just don’t know have I will fit the shifters between the seats. The forward shift is already hard at the moment and it is in front on the seats.
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Is your front box a forward shift case? Mine will be trans/forward shift/top shift.
 
In a doubler, the front can be a forward shift but the rear can’t. My old setup in my Toyota was two top shift cases. My new setup in the samurai will be a forward shift then a top shift.
 
I had trailgear, go ahead and spend the money on a 23 spline rear input.

If you plan to go bigger and bigger you may save some money and go ahead and put an atlas in. Which is what I did.
 
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I have a Marlin MC-07 10 degree clocked adapter in mine (not sure if they are still clocking the new adapters). My drivetrain has been together for a long time in a buggy that has run 39" reds, 39.5"x18" cut boggers (heavy SOBs), and currently 42" sticky Iroks. I have blown up a TG 23 spline input and a TG 4.7 gear set (separate occurrences) in my rear case on the 42" stickies, but the adapter is still in great shape. Don't think you can go wrong with the Marlin stuff.
 
I’m running the old marlin dual adapter. My doubler adapter is similar to the current trail gear one due to it being sand casted then machined.

I would go with marlin over TG. The NEW marlin unit is machined out of one solid piece of aluminum stock which reduces the impurities, and is going to be stronger than cast...

Mine cracked a corner off at one point and I had Chris welder’ up and remachined the surface. All is good with no leaks after a fair amount of abuse.

Also running 40” sticky MTRs with 21 splines. Not going to jinks myself, or I’d tell you how it does....


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