witec II MD3060 6th gear unlock help

PorchDog

1996 Bluebird, DT466 Mech. Spicer 5 Spd. 6 window
Joined
Aug 17, 2020
Posts
433
Location
Alabama
I have a 1995 International Mechanical DT466 with a Witec II controller for an Allison MD3060. It also has the T-handle shifter.

Which aftermarket folks can help me unlock 6th gear?

:Thanx:
 
I sent mine to "ECM Kings" in Texas as they do Allisons transmissions. I exchanged my ratchet shifter to a push button shifter and they checked out my TMC for me but mine was already 6th gear enabled. NOT cheap but thorough.
 
Well, ECM Kings immediately referred me to Memo, or meho, or something, and I called him--- he is in Houston-- 281-224-6552, and he said that he could only do it with permission from BlueBird, which is apparently almost impossible to get.

His plan B was to find a vehicle that came with 6 speed unlocked from the factory, (a truck maybe??) and get the CIN# and vin number, and he could do it that way. (Clone it?) I suspect it would need to have the exact same engine as my bus for the calibration to be correct. (Mechanical DT466)

To steal a line from Pink Floyd-- "Is there anybody out there?"...
 
i have been working with a company called transtar industries out of cleveland ohio.
havent really talked programming because i am keeping everything mechanical but they have been fair priced and i swear ship overnite without even asking for it
ordered a transfer casee fluid pump noon yesterday and it just showed up on my porch.
 
I called ECM kings back, and he said if I did NOT have a trans brake or jake brakes, he had a program he could install to unlock 6th.

I KNOW I don't have Jacob brakes-- but how do I know whether or not I have a trans brake?

???

And this ain't cheap....
 
I assume by trans brake he means hydraulic retarder. Not sure, I'd ask him for clarification. I don't think a driveline brake would matter, not sure if a 3060 ever came equipped with one anyways.
 
Well, ECM Kings immediately referred me to Memo, or meho, or something, and I called him--- he is in Houston-- 281-224-6552, and he said that he could only do it with permission from BlueBird, which is apparently almost impossible to get.

His plan B was to find a vehicle that came with 6 speed unlocked from the factory, (a truck maybe??) and get the CIN# and vin number, and he could do it that way. (Clone it?) I suspect it would need to have the exact same engine as my bus for the calibration to be correct. (Mechanical DT466)

To steal a line from Pink Floyd-- "Is there anybody out there?"...

Cloning is the most common way of getting it done.
Don’t be in a hurry to get it done. There are many old rv’s with mechanical engines from which you can find a TCM that would work for you.
Almost all rv’s are already unlocked for 6 th gear!

Be patient and you will find one!

Who knows, maybe you can get a whole rv super cheap and gut it for parts and get a free TCM out of the deal !
 
Thanks for bringing up this possibility-- and older used motor home donor...

Had not thought of that...
 
Thanks for bringing up this possibility-- and older used motor home donor...

Had not thought of that...

Patience is the key!
I waited and searched for 2 years!

I got a '99 Amtran, waited and struck gold...found a 2005 TCM with 6th already open...real cheap! ....$150 bucks!....
 
Unlock 6th

PCM Performance did my first bus, PCMPerformance.com, check them out. Mailed the TCM to them and three hundred bucks and a week later I was in business. On my next bus I used Clarke Power Services, they helped with the letter from Thomas and got the program from Allison and we were good to go. Not as cheap as PCM but very reasonable. Clarke has locations all over the eastern half of the country.
 
3060 and controls

Co parts has three or four motor homes. These are all diesel and appear to be cummins or cat motors . Search using MOTORHOME 1990 Then change the year and search again. Use 1990 to 1998 Buy the whole thing, scrap the rest. You now have the system needed to install.

William
 
Thanks for all the info. I have emailed PCMperformance, and have began my search for a TCM from a donor vehicle. There is a large motorhome salvage yard in southern KY, and they have TCM's from older units, but they want a part number-- which I don't have . My unit does not have 6th unlocked, so giving them that number will not work. I have my "thinking cap" on though. It may end up that changing the rear chunk from a 6.14 back to a 5.XX may be as cost effective. It also has 10R22.5 tires, and 11 tires would also help. I can cruise at 60 pretty effortlessly so I am not in that bad of shape. Patience... at 65 years old... drove it home 2100 miles at 63 MPH and it did fine.
 
I have a Wtec2 in my bus and it's a 1995 how about I give you my numbers and see what you can do with them? sportyricki
 
Thanks for all the info. I have emailed PCMperformance, and have began my search for a TCM from a donor vehicle. There is a large motorhome salvage yard in southern KY, and they have TCM's from older units, but they want a part number-- which I don't have . My unit does not have 6th unlocked, so giving them that number will not work. I have my "thinking cap" on though. It may end up that changing the rear chunk from a 6.14 back to a 5.XX may be as cost effective. It also has 10R22.5 tires, and 11 tires would also help. I can cruise at 60 pretty effortlessly so I am not in that bad of shape. Patience... at 65 years old... drove it home 2100 miles at 63 MPH and it did fine.

This is probably why they ask for your part number...from an email they sent me back in 2019.

per website, 500KB ROM WTEC3s = part number 29537291 or higher. https://pcmperformance.com/TCMs.html

so that is what yours needs to be, and if not then that is what you should look for. and it should be fully functional, tested, working WTEC3 unit.

anything below that part number, the ROM is to small and cannot be programmed to open up 6th gear. The older ones ran on a 250 kb ROM and the newer ones are 500 kb ROM.

part numbers source -> JULTECH
WORLD TRANSMISSION ELECTRONIC CONTROLLER 3 (WTEC 3, CEC 2)
Part Numbers:

29541227, 29528963, 29534937, 29536134, 29537291, 29538352, 29541151, 29543300


This guy has done quite a few, maybe he has a resource for TCM's ?
Express Equipment Sales
Charlie Ball
571-251-5811
cballexpressauto@aol.com
 
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SportyRick--

Maybe your TCM numbers would help. I would certainly appreciate your help. I suspect your TCM has a new CIN# of what was installed to unlock 6th, and maybe that's all I need? Thanks again for offering to help.
 
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Porchdog:
PN OR VIN 08003QC005J
PN 2034266C1
PN29521434
JOB 654735
CODE 0404321
shifter # 29514532 ratchet shifter not push button.

the vin is a new number because I sent my unit down to ECM King because i couldn't get it to work but I think I didn't have it plugged in enough so beware the plugs are hard to get "home"
 
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the VIN and CIN are 2 different things..



TCM's have a model number (like A41,A51,A59, etc) and also have a Part number.. thats for the HARDWARE itself...


the program within the TCM is the firmware and also the calibration.. the CIN is the calibration ID Number... this is where the shift tables, max RPM, throttle type, and customer modifiable values are stored like gear ratios and whether certainputs are turned on or not..


the label on the outside of a TCM is the base calibration parameters, 6 speed capable TCMs are supposed to be stamped with a primary mode of 1-6S1, 5 speed units will be stamped 1-5S1 typically.. the throttle type is generally J1939 or "auto"..



the governed RPM is important as that is the RPM the unit maxxes out at.. so if your engine only revs to 2300 max RPM foot to the floor yet you install a TCM with a 2700 RPM CIN, it will never shift to the next gear till you let off the gas pedal. likewise if you habve an engine that maxxes at 2700 RPM and you install a 2200 RPM TCM it will always shift much earlier than you want it to..



there are CIN numbers all over the interwebs and many of them show the RPM, gear pattern and throttle type.. but there are other vocations which you may not want.. ie if it requires an inhibit input for say a bucket truck where the transd expects a circuot to close from the bucket.. program that into a TCM where the wires arent even connected and it may result in you never getting out of neutral..


allison dealers can look up CIN numbers and read a report.. some of the 3rd party guys have a whole library of calibrations and the CIN printouts so when you mail them your TCM they know what you are trying to do therefore know which CIN to burn to your TCM.. I have a set of the allison programming books and there are literally 100s of options that can be set in the calibrations... most often this never needs touched as allison works directly with the manufacturers of these busses and trucks.. and provides the calibrations for their vocations.. often a completely different calibration for every gear ratio, every tire size, etc..


its important to pay attention to what you are buying..
 
but there are other vocations which you may not want.. ie if it requires an inhibit input for say a bucket truck where the transd expects a circuot to close from the bucket.. program that into a TCM where the wires arent even connected and it may result in you never getting out of neutral..

This is so true !!!

TCM from fire trucks, ambulances, construction vehicles, school bus wheelchair lift....can and will have options that interact with the TCM.

Most of it is easy to overcome by either software adjustment or re-configuring the TCM wiring, which is easy to do if you have the wiring diagrams.
 

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