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I had the 3.73 in my 2002 7.3 PSD and it was good, and I liked it. BUT, I also had the 4.10 in my 1997 7.3 PSD and it was real good also, all the way through the power band. My 2002 had a big lag ontake off and took a while to bild some poop, and then kicked ass. My 1997 had great power up to 90 and then backed off. The 2002 kept on going to 126. If we are talking about top end, the 3.73 is for you. If you are towing, then the 4.10 is the best all around IMHO.
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2002 F-350 SRW Lariat,4X4, PSD with too many goodies to list. 182k and a very strong 7.3. SOLD
2008 F-250, SC Lariat, 4X4,Shortbed, Pueblo Gold/black, V-10, 4.10, auto, Delivered on 9/7/07, great looking rig. South Texas bumpers front/rear, Air Raid Intake System, Diablosport Predator, Magnaflow, Husky's, JJ's, Ford alarm/remote start, Marathon seat covers, Sirius, PIAA, Access cover, Weatherguard tool box, Rhino liner, Michelins, Duraflap mud flaps, Escort 9500i, MagHytec rear dif cover.
2007 Lincoln LT (wifer's grocery getter),Superchip,Magnaflow duels, K&N dropin, Leer Browning Special
1996 Ford Bronco EB; almost stock
2007 Kubota 900 RTV diesel with goodies.
pappy's truck
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