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Old 05-08-2014, 06:51 PM   #1
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StevieG's Avatar
Fleetwood Owners Club
Join Date: Jan 2013
Location: Milton, NY
Posts: 923
Help with Allison Transmission service

Okay so I just had a complete spring service at a truck shop that wasn't so complete... I thought I got a full transmission service, but as it turns out, I got a transmission flush at best... So now I'm thinking if I can do most services on all of my other toys, why not try this... How hard can it be? My mh is a 2003 Discovery with a 330 Cat and Allison transmission.

Since I purchased the motorhome last year and have no real records to go by, I have to assume a real service has never been done or at least not in the recent past. In doing some reading, it seems that Transynd is the stuff to put in it. Here are my questions:

1) is there a specific fluid type of Transynd I should be asking for? I called my local Freightliner shop and they have 5 gallon buckets for $200.

2) How much will it take? I think I read 22 quarts if I can get it completely empty?

3) in looking at a YouTube video, it looks like there are 2 filters. I assume I should change both. Is there a specific filter # I should be using?

4) I've read about doing this in 2 stages. Is that the only way or mostly the recommended way?

Obviously I don't know much about this, but want to start doing this stuff myself. Like everything else I service on my own, once you know what you're doing, you will do it better than somebody you pay to do it.

All advise is appreciated.

Steve & Beth - Milton, New York
2009 Monaco Diplomat 41 SKQ
2016 Ram 1500 Quad Cab 4x4
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Old 05-08-2014, 06:56 PM   #2
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Location: Georgia
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Best advise get the serial number off the tranny and call Allison. I serviced my with new filters and fluid fairley simple the 2012 February MH magizine has a great step by step if you can find one.
2007 Fleetwood Revolution LE 40V
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allison, service, transmission

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