What Trans?
Post Fiend
Joined: Feb 2009
Posts: 8,005
Likes: 7
From: Ottawa, Ontario
In 1991 there was 2 different 5 speed trannys, but one was for F150's only, witch is the M5OD Mazda transmission.
The other would be the ZF5 S-42 heavy duty witch is found only in F250HD's and up.
No idea for the door code.
The other would be the ZF5 S-42 heavy duty witch is found only in F250HD's and up.
No idea for the door code.
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Freshman User
Joined: Apr 2006
Posts: 29
Likes: 0
From: Dauphin, PA
Ok, I knew I saw somewhere that there were 2 transmissions available that year, but didn't know the specifics. I thought one was a Mazda trans. Do you know if there are any common problems with the Mazda trans? Mine has 142K on it and works great. Thanks for the input.
Post Fiend
Joined: Feb 2009
Posts: 8,005
Likes: 7
From: Ottawa, Ontario
The 3 shift tower rubber plugs love to leak, and only leak as you drive, the tranny runs dry, and eats the bearings and causes all the problems known to those transmissions.
Heres what i'm talking about. Really easy to access, just unbolt your floor hump, and there right there.
Heres what i'm talking about. Really easy to access, just unbolt your floor hump, and there right there.
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Freshman User
Joined: Apr 2006
Posts: 29
Likes: 0
From: Dauphin, PA
Thanks. I do have a slight leak at the trans and thought I remembered seeing somewhere that there were some plugs that leaked. Do you know if you can still get these plugs from Ford yet? Thanks again.
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Freshman User
Joined: Apr 2006
Posts: 29
Likes: 0
From: Dauphin, PA
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Elder User
Joined: Feb 2009
Posts: 704
Likes: 2
From: louisville, ky
they have the rubber ones, but most replace with either a copper, or brass plug if i remember correctly....the rubber will just dryrot over time again anyways..
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