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Topic: Allison shift pad (Read 5301 times) previous topic - next topic

Allison shift pad

My push button shift selector/pad is becoming increasingly slow to respond.
I seem to remember tell of a company that rebuilds them?!.
If there is no such rebuilding option any advice on where to look for reasonably priced replacement?
Thanks as always!

Re: Allison shift pad

Reply #1 –
Tom,
These folks do a top notch job Transmission Instruments    Several here have used these folks.

Mike

Re: Allison shift pad

Reply #2 –
I just got my shift pad back from Transmission instruments. Could not be happier with there work and attitude.
I did not get the same soft touch screen back, its a hard plastic push button screen, works great and has a better feel than the soft touch. Looks brand new.

Re: Allison shift pad

Reply #4 –
Quote from: Lon and Cheryl –
I just got my shift pad back from Transmission instruments. Could not be happier with there work and attitude.
I did not get the same soft touch screen back, its a hard plastic push button screen, works great and has a better feel than the soft touch. Looks brand new.


Pics? Help a Brother out!! :D

Re: Allison shift pad

Reply #6 –
I wonder if the pad would work with the newer system that only shows the selected gear not selected and actual?

Re: Allison shift pad

Reply #7 –
Brett replaced our 'one window' display in 2010 with the dual window, looks the same as Lon's,  I like the 'click' buttons !

Lon, what did you pay for it?  :-X

Re: Allison shift pad

Reply #8 –
Mike, your '93 probably came with a 2 window display from Foretravel. Hope to find out if it wasn't and that they are interchangeable.

Re: Allison shift pad

Reply #9 –
Quote from: craneman –
Mike, your '93 probably came with a 2 window display from Foretravel. Hope to find out if it wasn't and that they are interchangeable.

Correct. 1993 Allison 3000/4000 had two window displays.

I do not believe two windows can be interchanged in place of one window.  A good reason for Scan Gauge D, Silverleaf, etc if you have the one window display and are not comfortable determining gear by speed and RPM.

Re: Allison shift pad

Reply #10 –
Until I put in the VMSpc, I didn't know the coach wouldn't upshift to 6th until 63 mph. Towing in Cal. limits speed to 55 so I am running in 5th while towing and mileage suffers.

Re: Allison shift pad

Reply #11 –
Quote from: craneman –
Until I put in the VMSpc, I didn't know the coach wouldn't upshift to 6th until 63 mph. Towing in Cal. limits speed to 55 so I am running in 5th while towing and mileage suffers.
So you're saying the CHiPs don't have no sense of humor?  They won't let you fudge it a bit up to 63?  Bummer.

Re: Allison shift pad

Reply #12 –
Quote from: mike leary –
Brett replaced our 'one window' display in 2010 with the dual window, looks the same as Lon's,  I like the 'click' buttons !

Lon, what did you pay for it?  :-X

Transmission Instruments charged about $500 including return S&H. It took a few days for them to turn around.
First class service. I much prefer this new pad to the old one.

Re: Allison shift pad

Reply #13 –
Quote from: Chuck & Jeannie –
So you're saying the CHiPs don't have no sense of humor?  They won't let you fudge it a bit up to 63?  Bummer.
I have a commercial license and am not allowed to remove a violation with traffic school. Also 10 mph over the speed limit and possible suspension on commercial lic. Insurance premium goes up also, and on a crane not good. When we go to other states I can get into high towing the Jeep.

Re: Allison shift pad

Reply #14 –
Interesting as my m11 upshift into 6th occurs at 55.  I think the shift points are adjustable? Same axle ratio

Re: Allison shift pad

Reply #15 –
Quote from: Caflashbob –
Interesting as my m11 upshift into 6th occurs at 55.  I think the shift points are adjustable? Same axle ratio
We must have something different if not the rear gears. Maybe Allison computer can be programed. When not towing I have experimented by getting up to 63 and watching the VSMpc show 6th gear and then backing down, around 58 it goes back into 5th.  Did the ISM mine has change anything to the shift points?

Re: Allison shift pad

Reply #16 –
"In ECONOMY MODE, the transmission will not downshift even at WOT (Wide Open Throttle) until the engine pulls down to peak torque RPM in some application and 200 RPM lower that "regular mode" in others. And similarly, on up-shift, economy mode will shift into a higher gear EARLIER-- with the difference only at or near WOT."
Brett posted this many years ago, think the Allison 4000 can be programed to default to either normal or economy mode. Mine shifts at about 63 also, maybe Bobs is programmed for default economy mode operation.

Re: Allison shift pad

Reply #17 –
My tranny shifts to 6th at 61mph.  Not 60.5 even.

Re: Allison shift pad

Reply #18 –
Yes, the Allison ECU can be reprogrammed by an Allison dealer.  BUT (large BUT) the RPM range is what is set, so it would affect all gear changes, not just 5-6.