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Topic: Allison trans joystick project.  (Read 929 times) previous topic - next topic

Allison trans joystick project.

I'm hoping that I've done my last mountain pass crossing with OUT the Allison joystick. I love the retarder function on the tranny but the brake pedal ( 3 stage ) activation is not getting it done on the Siskiyou pass and others.

 As I'm looking at collecting parts for this project I found this on eBay by taking others advise.  Google the part # and see what you find.  Hope it's the right one. If so , I saved some money. At least on this part.    Counting on the forum pros to confirm that I got the right part....

  Price.. $75.00
Robert and Susan
 1995 36' 280 WTBI 8.3 3060r
 1200 watts on the roof, 720 Ah of lithium's
 Build # 4637. Motorcade # 17599
        FMCA  # 451505
        18  Wrangler JLUR

Re: Allison trans joystick project.

Reply #1
  Counting on the forum pros to confirm that I got the right part....

Bob,

That is the correct number/part for what you are doing.

Mike
Pamela & Mike 97 U 320

"It's not what happens to you, but how you react to it that matters."

Re: Allison trans joystick project.

Reply #2
Thanks Mike....

  Now if I get the wiring harness part right I'll be a happy camper.    Beamalarm list the part that I think I need , although there are many, many operational choices according to the "WTEC-111 retarder controls page" (beamalarm). 

I'm just goin with the 29506474 part number. Thanks again Mike for the confirmation.
Robert and Susan
 1995 36' 280 WTBI 8.3 3060r
 1200 watts on the roof, 720 Ah of lithium's
 Build # 4637. Motorcade # 17599
        FMCA  # 451505
        18  Wrangler JLUR

Re: Allison trans joystick project.

Reply #3
Allison Joystick  #29521372
Control  module # 29506474
"Y" harness - P28173

Bob
Above are tha part numbers that I used on our sister coach to yours.
Justin & Cathy Byrd
1995 U280 "Old Faithful"
36' Build #4673
C8.3 Cummins
Allison MD3060R 6 speed - retarder
Powertech 10KW  4cyl Kubota

Re: Allison trans joystick project.

Reply #4
FT.  Thanks for the additional part numbers. I wasn't aware of the y- harness number.

  How's that new Redhead doing ?
Robert and Susan
 1995 36' 280 WTBI 8.3 3060r
 1200 watts on the roof, 720 Ah of lithium's
 Build # 4637. Motorcade # 17599
        FMCA  # 451505
        18  Wrangler JLUR

Re: Allison trans joystick project.

Reply #5
Thankfully it is doing fine! NO LEAKS! 😁

It actually drives a little better I believe, it drove good before, no complaints, but now that I can compare before and after, I'll take the after. 😉
Justin & Cathy Byrd
1995 U280 "Old Faithful"
36' Build #4673
C8.3 Cummins
Allison MD3060R 6 speed - retarder
Powertech 10KW  4cyl Kubota

Re: Allison trans joystick project.

Reply #6
The y harness is make by FOT
The selected media item is not currently available. Dave Head & Megan Westbrook
Titusville, FL - The Great Outdoors
'98 270 buying this month
Toad is a 2018 F150 XLT

Re: Allison trans joystick project.

Reply #7
Reopening an old tread.  Bear with me.

I'm wanting to add joystick retard to my 1998 U270 (with brake pedal retard).  From previous messages here, there 3 part numbers:

Allison Joystick  #29521372
Control  module # 29506474
"Y" harness - P28173

I'm uncertain as to the installation but my limited understanding has me thinking that I only need the joystick and "Y" Harness.  The Control module would only be needed if I wanted brake light & cruise interfacing.

Anyone know if that is correct?

Also, are there any instructions for the install floating around?

Thanks
1998 U270
Hood River, OR USA

Re: Allison trans joystick project.

Reply #8
Brake light & Cruise interface is only done with a new Bosch (cube) relay located next to air brake switches in streetside front bay. Easy to add, but not required. Not sure why the control module and what it does. Normal Joy stick orientation is off forward. Mount in empty slot on side dash.

Re: Allison trans joystick project.

Reply #9
...are there any instructions for the install floating around?
Try this thread from the Archives to see if it contains any helpful joystick installation tips:

Allision 3060R
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: Allison trans joystick project.

Reply #10
This is on my list to dig into and test a bit, but from what I can tell, the transmission controller is looking for a 0-5v signal to activate the retarder at different levels. The control boxes convert the pressure switch or joystick signals into the 5v signal for the controller. I think you would need the control box that matches the joystick so that the signal is correct into the transmission controller.
1991 U300 Side Aisle 6V92 Silver #3897
2004 U320 40' #6246

Re: Allison trans joystick project.

Reply #11
The thread linked earlier in this thread was indeed helpful. I'm still trying to find out the exact use of:
Control  module # 29506474
And whether or not it is required for the installation.
I know several people here have added the joystick, so just hoping to hear from one of them.

I have the Y harness coming from foretravel.

Cheers!
1998 U270
Hood River, OR USA

Re: Allison trans joystick project.

Reply #12
Pretty sure that the module is also needed. I have installed several and the joystick plugs into the module.
previous 1984 35 ft ORED 250 HP 3208 Cat       
previous 1998 40 ft U295 CAI 325 hp Cummins
previous 2003 40 Ft u320 build #6140 450 Cummins M11.                                                         
1999 Mazda Miata
Ron, Nancy, Tipper the cat, Max The dog
1997 U 270 36 ft build number 5174 8.3 Cummins

 

Re: Allison trans joystick project.

Reply #13


When Chuck & Jeannie posted a link to an old Joystick thread, it was impressive to see our 18 year-old details about adding a Joystick.

Shows the long-lasting value of Steve & Michelle's Foreforums and how old postings have a long life that can help others over decades.

Long Live the King

Barry & Cindy