Allison Transmission

[jburgessx2]

I want to service my Allison transmission but was unsure which one I had. I
have the Bluebox paperwork but it lists two different model numbers: MT 644 and
MT 654CR. The paperwork states "up to 300 hp." I was sure this 6V92 was 330 hp
with the turbo. I don't believe the motor or tranny was changed - at least I
have no reason to believe it. What's the easiest way to tell which tranny I
have? Or, does it make any difference when it comes to the filters?

Thanks.

Jerry
85 PT40
Port Hueneme, CA

[John Wyatt]

--- In WanderlodgeForum@yahoogroups.com, "jburgessx2" wrote:

I want to service my Allison transmission but was unsure which one I had. I
have the Bluebox paperwork but it lists two different model numbers: MT 644 and
MT 654CR. The paperwork states "up to 300 hp." I was sure this 6V92 was 330 hp
with the turbo. I don't believe the motor or tranny was changed - at least I
have no reason to believe it. What's the easiest way to tell which tranny I
have? Or, does it make any difference when it comes to the filters?

Thanks.

Jerry
85 PT40
Port Hueneme, CA


Hi Jerry,

I used to own a 1984 ½ PT-36 with the 6V92 - 330 hp engine. That coach had an
Allison MT 654CR Transmission. The Internal Filter kit that I used was Allison
number 29502302 and the spin-on filter that I used was a Fram PH3519A. The
Allison MT 654CR Transmission is a 5 speed and I believe the Allison MT 644 is a
4 speed.

John
91 40' WB
Batavia, OH

[John Churchill]

--- In WanderlodgeForum@yahoogroups.com, "John Wyatt" wrote:
>
> --- In WanderlodgeForum@yahoogroups.com, "jburgessx2" wrote:
>
> I want to service my Allison transmission but was unsure which one I had. I
have the Bluebox paperwork but it lists two different model numbers: MT 644 and
MT 654CR. The paperwork states "up to 300 hp." I was sure this 6V92 was 330 hp
with the turbo. I don't believe the motor or tranny was changed - at least I
have no reason to believe it. What's the easiest way to tell which tranny I
have? Or, does it make any difference when it comes to the filters?
>
> Thanks.
>
> Jerry
> 85 PT40
> Port Hueneme, CA
>
>
> Hi Jerry,
>
> I used to own a 1984 ½ PT-36 with the 6V92 - 330 hp engine. That coach had an
Allison MT 654CR Transmission. The Internal Filter kit that I used was Allison
number 29502302 and the spin-on filter that I used was a Fram PH3519A. The
Allison MT 654CR Transmission is a 5 speed and I believe the Allison MT 644 is a
4 speed.
>
> John
> 91 40' WB
> Batavia, OH
>

All trannies and engines are marked with either a plate, tag stamped or cast in
info. The owner's or service manual should show where on the tranny to find the
spot with the model and serial # info.
For the filters, they may be the same if they are in the sane "family". You can
go online to a filter website or Allison and cross-reference between the models.
John Churchill
1980 FC33

[slckPurdy@...]

You can either get the number off the service tag on the transmission or depending on where your ECU is for the shift panel it is usually listed on the box underneath that panel. If you have a serial number from the transmission a W.W.Williams facility or any Allison dealer will give you a hand. They will also be able to guide you in what direction you want to go for fluid be it synthetic or regular plus the correct filters.

-----Original Message-----

From: John Wyatt

To: WanderlodgeForum@yahoogroups.com

Sent: Thu, 19 Mar 2009 12:59 am

Subject: [WanderlodgeForum] Re: Allison Transmission

--- In WanderlodgeForum@yahoogroups.com, "jburgessx2" ...> wrote:



I want to service my Allison transmission but was unsure which one I had. I have the Bluebox paperwork but it lists two different model numbers: MT 644 and MT 654CR. The
paperwork states "up to 300 hp." I was sure this 6V92 was 330 hp with the turbo. I don't believe the motor or tranny was changed - at least I have no reason to believe it. What's the easiest way to tell which tranny I have? Or, does it make any difference when it comes to the filters?



Thanks.



Jerry

85 PT40

Port Hueneme, CA



Hi Jerry,



I used to own a 1984 ½ PT-36 with the 6V92 - 330 hp engine. That coach had an Allison MT 654CR Transmission. The Internal Filter kit that I used was Allison number 29502302 and the spin-on filter that I used was a Fram PH3519A. The Allison MT 654CR Transmission is a 5 speed and I believe the Allison MT 644 is a 4 speed.



John

91 40' WB

Batavia, OH

---

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[Wayne Kotila]

I have a 1985 PT40 with a 6V92 Turbo also and mine is 330HP, I think the tranny is a MT654.

Wayne

---

From: John Wyatt
To: WanderlodgeForum@yahoogroups.com
Sent: Wednesday, March 18, 2009 11:59:32 PM
Subject: [WanderlodgeForum] Re: Allison Transmission

--- In "WanderlodgeForum%40yahoogroups.com", "jburgessx2" wrote:

I want to service my Allison transmission but was unsure which one I had. I have the Bluebox paperwork but it lists two different model numbers: MT 644 and MT 654CR. The paperwork states "up to 300 hp." I was sure this 6V92 was 330 hp with the turbo. I don't believe the motor or tranny was changed - at least I have no reason to believe it. What's the easiest way to tell which tranny I have? Or, does it make any difference when it comes to the filters?

Thanks.

Jerry
85 PT40
Port Hueneme, CA

Hi Jerry,

I used to own a 1984 ½ PT-36 with the 6V92 - 330 hp engine. That coach had an Allison MT 654CR Transmission. The Internal Filter kit that I used was Allison number 29502302 and the spin-on filter
that I used was a Fram PH3519A. The Allison MT 654CR Transmission is a 5 speed and I believe the Allison MT 644 is a 4 speed.

John
91 40' WB
Batavia, OH

[Jerry Burgess]

John,

Thanks! I appreciate the information.

Jerry

85 PT40

---

From: John Churchill
To: WanderlodgeForum@yahoogroups.com
Sent: Thursday, March 19, 2009 5:46:24 AM
Subject: [WanderlodgeForum] Re: Allison Transmission

--- In "WanderlodgeForum%40yahoogroups.com", "John Wyatt" wrote:
>
> --- In "WanderlodgeForum%40yahoogroups.com", "jburgessx2" wrote:
>
> I want to service my Allison transmission but was unsure which one I had. I have the Bluebox paperwork but it lists two different model numbers: MT 644 and MT 654CR. The paperwork states "up to 300 hp." I was sure this 6V92 was 330 hp with the turbo. I don't believe the motor or tranny was changed - at least I have no reason to believe it. What's the easiest way to tell which tranny I have? Or, does it make any difference when it comes to the filters?
>
> Thanks.
>

> Jerry
> 85 PT40
> Port Hueneme, CA
>
>
> Hi Jerry,
>
> I used to own a 1984 ½ PT-36 with the 6V92 - 330 hp engine. That coach had an Allison MT 654CR Transmission. The Internal Filter kit that I used was Allison number 29502302 and the spin-on filter that I used was a Fram PH3519A. The Allison MT 654CR Transmission is a 5 speed and I believe the Allison MT 644 is a 4 speed.
>
> John
> 91 40' WB
> Batavia, OH
>

All trannies and engines are marked with either a plate, tag stamped or cast in info. The owner's or service manual should show where on the tranny to find the spot with the model and serial # info.
For the filters, they may be the same if they are in the sane "family". You can go online to a filter website or Allison and cross-reference between the models.
John Churchill
1980 FC33