Join Date: Jul 2010
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I can pull some some 3.73 trucks with similar mods to me. Most of the time it happens around 70ish is where the 3.55's start to kick in.
When I used to race cars the more power you put down the lower gear you needed to not run out of rpm before you got to the end of the track. Like a 450rwhp car can be good with 3.73's or 4:10's , while a 650rwhp car would run a lot better with say a 3.55 or 3.27 is what i used on my big block mustangs.
2010 Ford F250 CCSB Afe stage 2 si, Spartan 300,310,350 tunes, 5" flow pro down pipe back straight pipe,powerstroke67 ceramacoated downpipe, powerstroke67 Cold side pipe, Afe intercooler, Turbo socks, and a lot more to come.