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Old 02-08-2018, 12:00 PM   #1
Mini-Skoolie
 
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Identify transmission through VIN number

Greetings All,

I'm trying to identify which Allison transmission is used in a 2006 Freightliner/Thomas short school bus with a Mercedes 6.4 Liter diesel engine, F65 body. The VIN is 4uzaawct46cu72666. I'm not getting any results for transmission type in a web search. Anyone have info on this? Thank you most kindly! -N
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Old 02-08-2018, 12:47 PM   #2
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Call the freightliner dealer with the VIN
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Old 02-08-2018, 03:01 PM   #3
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Allison 2000 and MD3060 automatic
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Old 02-08-2018, 04:52 PM   #4
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I was just work around a shop that was doing an in frame rebuild on a big Mercedes diesel.
They don't like them but actually do quite a few.
A new engine of that size is 27'000$
And a rebuild is (only?) 16,000$.
And I know others with the big work vans with the Mercedes in them that is probably closer to the size you are looking at and they constantly have problems with them and finding a mechanic that can figure out the problem.
But like them when they actually run.
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Old 02-08-2018, 05:54 PM   #5
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Took your advice Kubla and called a couple of dealers. The model is 2500 PTS which is the 2500 series transmission. From what I have read, it seems to be a respectable transmission although I have not yet determined if it can "lockup in top gear and will be night and day better at pulling a load and operating at highway speeds" (Brokedown contribution in a former discussion) or "provide engine braking" (Tango).

And, Jolly Roger Bus, in my search for a bus one of the most perplexing things is the wide divergence of opinions about engine reliability etc, etc. Prior to your reporting, I had come to think that in general, the 6.4 liter Mercedes was a fairly well respected and reliable diesel engine? This one has about 136,000 miles on it and is retired from a school.
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Old 02-08-2018, 06:08 PM   #6
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Quote:
Originally Posted by Pine Sap View Post
Took your advice Kubla and called a couple of dealers. The model is 2500 PTS which is the 2500 series transmission. From what I have read, it seems to be a respectable transmission although I have not yet determined if it can "lockup in top gear and will be night and day better at pulling a load and operating at highway speeds" (Brokedown contribution in a former discussion) or "provide engine braking" (Tango).

And Jolly Roger Bus, in my search for a bus one of the most perplexing things is the wide divergence of opinions about engine reliability etc, etc. Prior to your reporting, I had come to think that in general, the 6.4 liter Mercedes was a fairly well respected and reliable diesel engine? This one has about 136,000 miles on it and is retired from a school.
This will help you:

https://www.carolinathomas.com/wp-co...ors-manual.pdf
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Old 02-08-2018, 06:27 PM   #7
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I was working at an Allison shop this week and had them look a friends serial number up and he was a 2200 MH meant motor home. So now I want to know what PTS is?
I know what PTSD is before it ever was a thing?
Can you get tranny serial numbers?
I am gone from the job but might get a day there in a couple of weeks.
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Old 02-08-2018, 06:35 PM   #8
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Quote:
Originally Posted by Jolly Roger bus 223 View Post
I was working at an Allison shop this week and had them look a friends serial number up and he was a 2200 MH meant motor home. So now I want to know what PTS is?
I know what PTSD is before it ever was a thing?
Can you get tranny serial numbers?
I am gone from the job but might get a day there in a couple of weeks.
I believe "PTS" is Pupil Transport/Shuttle Series
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Old 02-08-2018, 06:38 PM   #9
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Quote:
Originally Posted by Jolly Roger bus 223 View Post
I was working at an Allison shop this week and had them look a friends serial number up and he was a 2200 MH meant motor home. So now I want to know what PTS is?
I know what PTSD is before it ever was a thing?
Can you get tranny serial numbers?
I am gone from the job but might get a day there in a couple of weeks.
Model is 2500PTS

Serial # 6310467760

Thank you!
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Old 02-08-2018, 06:52 PM   #10
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Guess I need to get my head into the game TWIGG.
As long as I can keep that Detroit/Allison shop happy I can get whatever I ask when I am there.
Just starting the parts game with them but so,far they are very receptive.
But the building owner did use fleabay heaters with NO manual?
So piped in for propane and don't know what the unit is set up for until fire up but even if good for propane they will have NG in two months so I have two go back for a conversion either way.
Buy the time all that happens they won't need heaters.
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