ZF5 Tranny fluid
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Junior User
Joined: May 2009
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ZF5 Tranny fluid
I have a ZF547 5 speed
I run the Mercrun synthetic ATF in it
I'ts a professional freshly rebuilt Tranny.
It's kind of loud
What type of other fluid could I run in it, I've heard of Royal purple and even straight 30 wt motor oil
Also I have a growling noise around 1000rmp when costing under no load,give it gas or push in on the clutch and it goes away
The old tranny made the same noise at the same RPM
I do have a South bend clutch and solid flywheel in it
Thanks
I run the Mercrun synthetic ATF in it
I'ts a professional freshly rebuilt Tranny.
It's kind of loud
What type of other fluid could I run in it, I've heard of Royal purple and even straight 30 wt motor oil
Also I have a growling noise around 1000rmp when costing under no load,give it gas or push in on the clutch and it goes away
The old tranny made the same noise at the same RPM
I do have a South bend clutch and solid flywheel in it
Thanks
Post Fiend
Joined: Jan 2005
Posts: 8,402
Likes: 10
https://www.ford-trucks.com/forums/7...heel-help.html Have a read through this thread. ZF5 noise is common after fitting a SMF to a diesel. The noise you had before may have been due to a bad DMF.
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,730
Likes: 2,657
From: SE Florida
The reason the dual mass existed in the first place was to eliminate this noise that you're hearing. You are always going to have that noise with a single mass flywheel.
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