NornIron91
Well-Known Member
- Joined
- Aug 1, 2015
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- 9
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- 1,197
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- Location
- Northern Ireland
- First Name
- Paul
- Vehicle(s)
- 2018 Mustang GT
Yep it's working nowShould all work now, try F5 or CTRL+F5![]()

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Yep it's working nowShould all work now, try F5 or CTRL+F5![]()

Thanks Dave - useful info there!The part number breaks down into three parts.
Prefix - base part number - suffix
The prefix denotes year (F = 2015) model (R3 = Mustang) engineering area (C = Chassis)
Hence why all parts are FR3 something. There is a breakdown of this elsewhere on the net.
The base part number is specific to the part so a 5310 is always a front spring, 5560 is a rear spring and so on.
The suffix usually starts as an AA - this goes to an AB when there is a design revision but the part is still interchangeable.
If it's not interchangeable or it's for a different application it would go to a BA
The Ford Racing part numbers always seem to start with an M and often seem to use the base part number but I don't know how they allocate them other than that.
Hope that helps somewhat.
Racing/Track have more rebound, particular in rear, hence why the bounce is cured, but the shorter higher poundage spring also helps.Gibbo
did they explain the difference in the dampers between track and PP spec?
Yes but it does so much more, it centre's the cradle and solid bushes it, the car is vastly more dynamic with it, no more rubberized feeling in the rear and no NVH, but a little NVH when combined with Steeda diff bushing inserts, but very minimal and only 1000-1200rpm in traffic when pulling off very slow.It was the BMR vid for the cradle lockout that did it for me. Wasn't going to touch it until I saw how dramatic the hop/tramp was.