Allison Transmission

[Wayne Kotila]

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

Wayne

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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