Thread: FU or FU2
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Old Wed, September 15th, 2010, 04:26 PM
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The shifts shouldn't be neck-snapping with the FU and a valve body, but you will definitely know that it shifted!! Most people find the shifts too hard, but if you like hard shifts, you should be right at home. Keep in mind that with the FU and without sending in your PCM, the PATS system will by bypassed.

Really, neck-snapping shifts aren't really good for things, but for the most part, firmer is better. The torque converter input shaft splines and intermediate one way clutch are the main things to worry about.
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Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years.
Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim.