There are a lot of things going on there.....and quite frankly, depending on the year of the truck in question, may or may not work just the way you want it to. In either case, you are looking at a TON of trial and error with the tuning to make it work just right.
The 4x4 low shifts are handled the same as the high range shifts....only divided by 2.7.
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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.
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