Thread: 2004-2008 FX4 Gears?
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Old 06-24-2009, 09:49 PM
hockeyfanjeff hockeyfanjeff is offline
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Join Date: Oct 2005
Location: Parker, CO
Vehicle: 2000 Ford F150
Posts: 299
Question 2004-2008 FX4 Gears?
A couple quick questions for you guys please. First off, did Ford offer the FX4 with a 3.55 LS, or was it just the 3.73 LS rear end?

If it were the 3.73LS only, would it be difficult to replace it with a 3.55 LS and what modifications would need to be made i.e. the ECU or PCM?

Thanks

Jeff
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