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Power Strokes
6.7 Aftermarket
3.73 and 4.10 gearing Q&A
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[QUOTE="Morgan@Midwest Diesel & Auto, post: 1241191, member: 8143"] When I ditched the 3.31's for 3.73's my 1/4 mile improved. The 3.31's and 2nd gear launch were just too much to pull through. Wish I did 4.10's If you are not towing and not running a larger non vgt it will work fine. I had a s366 on my ccsb with 35's/3.55's and it worked fine. I even towed fairly heavy 25k or so. Just couldn't tow heavy and use 6th or it would downshift too much. For anyone one who is anal about what they drive, you will not regret the gear swap. Mine feels much more effortless when taking of and city driving and even with 33's the 3.73's. It cruises at 80mph on the interstate just fine. If your not really that worried about your combo being absolutely perfect it is fine because these transmissions are awesome at making up for steeper rear end gears in most situations. 35's and 3.73's or 37's and 4.10's it's hard to go wrong with either of those combos. And for a truck wanting to go fast, the 3.73's with a set of 32.5-33" nitto 420's is an absolute riot. Sent from my iPhone using Tapatalk [/QUOTE]
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6.7 Aftermarket
3.73 and 4.10 gearing Q&A
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