CK5
Register an account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members.

Help with new crawler rig doubler!!!

BlaZeus

The Real Mateo
Joined
Jan 28, 2015
Posts
628
Reaction score
314
Location
Sheridan, WY
So I just picked up this 56 Willys with twin sticks. How does this work? I've done a little bit of research and haven't really found anything that tells me what position they need to be in to drive on the street, casual trail, or hard core wheeling. It also has Toyota axles under it and there is a spherical bearing type deal where the knuckle meets the axle and both sides have a ton of fluid on the end of the axles. Does this mean blown axle seals? Any wisdom is appreciated! Thanks!

image.jpeg

image.jpeg

image.jpeg

image.jpg
 
Oh wow I thought they were the same thing....:dunno::confused::doah:

Nope. Doubler means two transfer cases, like http://offroaddesign.com/catalog/doubler.htm . For a doubler you could have three sticks, one for the range box (first transfer case) and two for the second transfer case.

IIRC, if they're Toyota axles the front axle things are Birfields, about which you should Google.

-- A
 
This twin stick operates just like a tractor. One stick for HIGH/LOW range, and the other for the gear selection you want. I do not know how many gears this trans has, but for example if it has four gears, then you can put the position stick in the LOW position and go through all four gears with the gear stick; after that you can put that position stick in HIGH position, then go through all four gears again with the gear stick. If you are going to drive this jeep on the road, then the HIGH position is the only position you will want to use while going through your gears.
 
This is totally different.

One stick controls the front output, the other controls the rear. Both are low all the way forward, neutral in the middle, high range all the way back.

If you want to drive on dry asphalt, you put the rear in high, front in neutral. Both in high for 4WD high both in low for 4WD low, etc.

Tractors have the same type of two speed diffs as this old jeep. You are correct though about clarifying how to drive it on the street in 2-wheel drive though.
 
Go to trail gear info on axles they have tons of instructions online.

You need a knuckle seal kit to prevent them from leaking.

It's a closed knuckle design. Check the upper and lower trunnion bearings.

For their size Toyota axles are beefy
 
Top Bottom