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Twin Stick EA82 Oh Yeah!


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35 replies to this topic

#26 Jerry DeMoss

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Posted 07 December 2006 - 11:03 AM

I seperated the LO-HI from the 4wd stick.
Which means I can shift into LO without going into 4wd first.
So I have 2wd LO (this is what you gain), 2wd HI, 4wd LO, and 4wd High.


:headbang: :grin: OH YA!

#27 dixracing

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Posted 07 December 2006 - 08:43 PM

thank you very much.......:eek:

#28 deckerj555

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Posted 03 January 2007 - 11:19 PM

DrKrazy--have you had a chance to take some more pics?

I was checking out my EA81 and couldn't quite make the mental leap to see how you made it work. :-\

-j
--------------
EDIT:

ah-ha! i just found this little gem:

http://www.ultimates...ead.php?t=66608

makes sense now!

#29 Phizinza

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Posted 30 January 2007 - 12:12 AM

Sorry to bring this up again, but...

Have you made anything to hold the synchro in hi or lo gear? Or does it just hold itself? The reason I ask is with our (australian) EJ22 D/R gearboxes with center diffs they have a detent on the casing next to the low range shift fork which holds it in gear. But when you put the EA82 low range gearset in it needs the EA82's shift fork modified to work with the detent (pics on all that stuff are to come later.) But if it holds in low range find and in high range fine then I guess all that isn't really needed.. :-\ Confusing enough for you?

#30 DrKrazy

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Posted 30 January 2007 - 08:51 PM

Sorry guys, haven't gotten back on this to take better pics etc. Actually been driving the rig as my Daily with all the snow we've been getting the RX is still trapped in my driveway in front of several feet of snow.
Holds fine in LO and High...only times it has popped out was with a passenger that smacked it with their knee (has happened a few times, picked a bad place for it I guess), and another time when my CB stripped a screw and pulled it out of LO. When I re-do it I plan on putting some sort of pole lock (now that's confusing but I know what I mean in my brain) so the passenger knee's won't knock it out. Hope that helps some!

#31 Phizinza

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Posted 30 January 2007 - 09:03 PM

Interesting. Because all the Aussie guys who put the 1.59 low gear in the Liberty D/R box say that the detent has to be done. Because the Liberty box doesn't have the detent in the 4WD 2WD selector (cos it's AWD.) I guess they are wrong again. Oh well, it wasn't hard and my brother is a good welder. So It's all done how I was told to do it now. More on my story later. This seems like a really good idea if you want 29" tires. But I think I'll stick to my 27"s.

#32 DrKrazy

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Posted 11 February 2007 - 06:27 PM

Ok guys I know some have you have been waiting for me to get around to re-doing my twin stick mod so you could have some better pics. Well I got around to doing most of it this weekend, and have a nice little write up for you (also going to submit it to the USRM):

Twin Stick D/R EA81/EA82 (Seperate Lo Range from the 4wd stick = LO Range FWD)

First off this mod will give you the ability to run Lo Range in FWD! Good for turning big tires on the way to the trail, and real handy while on the trail when you need some torque but can sacrifice 4wd for a moment I.E. Hill climbs...

First find your Hi-Lo linkage, it's on the passenger side (driver's side on EA81's) of the tranny near the bellhousing:
Posted Image

Take out that linkage bar to get a start. You can see in my picture which way is hi and lo. In other words pull towards the passenger compartment for hi, pull towards the front for lo. So you can see it removed and the joint just hanging there.
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Take the linkage bar and do what you like with it (you may use it in your install).
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I had already set this up once, but you will need to figure out:
Where you want your second stick?
How you want to connect the linkage?
Which will lead to needing to put a hole in the floor, and laying out the new linkage for measurement, mounting ideas, etc. The following is just how I did mine and is just to help get an idea on how it can be done. My parts list included (Just remember I'm the type of guy who uses what he has laying around):
Old steel curtain rod with thread ends
A couple inch coupler
An L bracket I cut to a straight piece of metal
Two bolts that threaded into the ends of the curtain rod
A random 14mm bolt that threads into the joint on the tranny
A spare blue 4wd handle
A C bracket for holding electrical conduit
Some wire, glue, welder, other misc things:
Posted Image

The linkage really runs inside the tranny tunnel, so I needed to offset it to bring it into the passenger compartment. Did some measuring and guessing and drilled a hole through two layers of floor (because of where I choose). The curtain rod happened to very close to length I wanted, and I needed to extend it a tad/plus put in small section that will be part of lock idea. I measured the distance inbetween the layers of floor and cut myself a coupler a tad longer.
Posted Image

I then welded the coupler in place. This coupler also serves as a stick point in the body that makes it stick in Hi or Lo by catching on the holes going through the floor. I egg shapped the holes so all you have to do is pull it towards you a tad to get past the "lock".
Posted Image

I then measured the distance from my hole in the floor to the link on the tranny to get my offset bar length and where to drill the bolt holes in the bar. I drilled out the bolt hole for the link on the tranny (I messed up the first time which is why there is two holes on the link side, helped for adjustment though). I then drilled another partial hole for my new linkage bar. I drilled it just enough to stick the curtain rod in it, then drilled a smalled hole through the middle of that for the bolt. This just made it easier to weld.
Posted Image

Curtain rod fitted and bolted
Posted Image

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I then tightened up the curtain rod, and welded it up for good strength.
Posted Image

I then worked some magic with a couple bolts, welder, and glue to make myself a geniune Subaru 4wd handle that screws into the other end of the linkage! Gave the likage a coat of paint, and took a break.
Posted Image

Once the paint dried, not that it matter since it just flaked off anyways..I went to putting it all together. Put the new linkage through the floor and bolted it to the link on the tranny with a random 14mm head bolt I found that worked perfect.
Posted Image

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Once that was done I moved inside. I already had it running between my CB and console so I just kept it that way.
Posted Image

You can see the almost finished picture here, will explain the rest next. So I used a C clamp to hold it in place loosely, threaded in my home made handle, and wrapped up the bar with some electrical tape just to make it look a tad better. I then moved on to moving my lo light switch (yes I like to see the lo light up on my dashboard).
Posted Image

Your Lo light switch is located underneath your shifter. Just pull off your shifter and piece around it and you will locate it. I simply extended the wires and hung the switch on the side of console above the new linkage.
Posted Image

I then got tricky and used an old flat blade tip for a screwdriver and did some moving and marking then welded it into place on the linkage to trigger the Lo light.
In the Hi position:
Posted Image

In the Lo position (notice the little black button got pushed in to trigger the light):
Posted Image

I tested it all out and put my CB back on to hide the Lo light switch and just because that's where it belongs. So I ended up with a finished project that looks like this:
Posted Image

BEWARE! You can break front axles fairly easily with big tires and this mod...just don't go dropping your clutch for fun! Enjoy your new driveability with big tires and running the trails in front wheel drive Lo!

#33 Phizinza

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Posted 12 February 2007 - 03:56 AM

(Just remember I'm the type of guy who uses what he has laying around)


Hahaha. I like.. :lol:


BTW, I can't see your pictures :(

#34 DrKrazy

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Posted 12 February 2007 - 10:25 AM

Hahaha. I like.. :lol:


BTW, I can't see your pictures :(


One of my webserver's was down for awhile last night for maintaince, just happened to be the one that hosts these pics :lol:. Should be okay now.

#35 PonchoCatalina

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Posted 14 February 2007 - 01:37 PM

Great write up! Does anyone have any thoughts on using a manual choke cable to actuate the hi-lo selector? Would it have enough "oomph" to flip that lever back and forth, or does it require a solid linkage? What about a linear actuator or a solenoid so you could select hi or lo with a pushbutton? Obviously this mod has prodded my creative daydreaming into action. Thanks!

#36 DrKrazy

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Posted 14 February 2007 - 02:21 PM

A choke cable wouldn't work, it takes some solid force to engage it in either gear. I do however know that Beefaru has his super special RX tranny setup to use the original vacuum for the diff lock switch to engage his lo/hi on his tranny. So that is defintely doable. Maybe I can get him to post some pics up of how they did that.




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