HomemadeTurbo - DIY Turbo Forum - My Jeep AW4 shifter Update,Done and mounted! 2/7/09

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My Jeep AW4 shifter Update,Done and mounted! 2/7/09

Well I need to bypass my ECM/TCM control of my AW4 so it doesn't downshift when I force it into open loop due to the turbo. (don't ask, its a long story and has to do with the air/fuel ratio in closed loop.)

I made this simple mechanical shifter that actuates 2 normally open/closed switches. I made this with some crap I had laying around and some hardware store items.

This is a rough idea of what it will look like but this exactly how it works.

Its about 4.25"x3"x2" ish.
Attachment 10257

Attachment 10258

Its bascially just a rod welded to a big fender washer that I drilled recesses into. I used a spring and a ball bearing to give it a positive shift feel. Its pretty smooth and does have a good solid stopping point between gears.

Attachment 10259

I cut the rod and ground it down to center it. (no I didn't measure it) Then I TIG'd it on. The spacers are some 1/2 copper tubing I found in my basement.
Attachment 10260

I used the same rod and cut pieces off and welded them to the fender washer to hit the switches in correct order to shift the tranny.

Attachment 10261

Here is the schematic that you need to use to get the order correct and wired up. I printed the TCM pinout from the Shopkey at the shop.

Attachment 10262

Here is a quick vid of how it works. It will obviously be bolted down when in use but you get the idea.

http://i51.photobucket.com/albums/f3...h_DSCF2024.jpg

I need to make a nice cover for it and get rid of the bolt that is the pivot and get a 1/2 rod and some locking collars so there won't be bolts hanging out of the side. I am also going to incorporate a lighted switch on the cover to actuate the convert lock up.

Re: My Jeep AW4 shifter

can you make it say 'one!' 'two!' etc when you select a gear? that would be sweet :D

but awesome concept, i hope it works good for you :y

Re: My Jeep AW4 shifter

sweet...when i had a jeep with an aw4 i remember looking into the people doing the electronic shifter setups, looks badass. Plus, i dont think ive seen anyone do it like that, most just use buttons i think ;)

Re: My Jeep AW4 shifter

Ok, got the cover assembly all set. I went to Cable and Connectors looking for a 3pdt switch which they had so I can run the tranny on the shifter or the tranny computer. While I was there getting more switches and wire then I'll ever need I see some hobby boxes. Son of a bitch they had one that was perfect!! I was stressing about having to make a box that would work and look reasonable. I think this does the job and was only $9.

I first started out by getting some locking collars to get rid of the big bulky bolt. There is no exterior overhang now from the framing.
Attachment 10219

I drilled and tap 4 holes in the side to secure the cover to the shifter frame.
Attachment 10220

The entire side comes off with a few screws to allow access to everything.
Attachment 10221

I made sure to get the box wide enough to put a lighted toggle in for the torque converter lock up.
Attachment 10222

All I need to do it mount it and wire it up. I will fit perfectly directly in front of my cup holder and I can leave my arm on the center arm rest and shift at the same time. Very comfortable. I may add my Hella light switch to this box too. There is enough room.