331 gears with 20" wheels
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Joined: Dec 2013
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331 gears with 20" wheels
I know this subject has been beat to death but I would like some opinions from anyone with a similar truck. I currently own a 2019 F250 King Ranch 6.7 20" wheels with 355 gears. The only towing I do is my enclosed car trailer, not real heavy, well under 10,000 lbs. I put an order in for a new truck back in Novemder 2021, that is identical. I was at the dealership yesterday and my salesman said my truck was built and on a train. I asked for a window sticker and that is when I saw that the dealer put the order in specifying 331 gears. My concern is with the 20" wheels and 331 gears. I test drove one with that configuration and I had to get above 60 mph to get into 10th gear. I also test drove a 21 limited with 355's and would go into 10th gear between 50 and 55. Understanding their are 3 overdrive gears i am assuming it is okay if 10th is never used unless on the highway. My 2019 with the 6 speed has very good bottom end acceleration. Would the 331 with the 10 speed and the additional torque and horsepower have comparable bottom end performance?
Lead Driver
Joined: Nov 2005
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The 20" wheels make absolutely no difference, it is the diameter of the tires that might, but they won't in this case because all the tires included on SRW trucks are very close in diameter.
And, there is very little difference between 3.31 and 3.55 gears, like less than 50 rpm at highway speed.
And, there is very little difference between 3.31 and 3.55 gears, like less than 50 rpm at highway speed.
Hotshot
Joined: Jun 2003
Posts: 12,343
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From: SW VA
The 20" wheels make absolutely no difference, it is the diameter of the tires that might, but they won't in this case because all the tires included on SRW trucks are very close in diameter.
And, there is very little difference between 3.31 and 3.55 gears, like less than 50 rpm at highway speed.
And, there is very little difference between 3.31 and 3.55 gears, like less than 50 rpm at highway speed.
Cargo Master
Joined: Apr 2021
Posts: 2,020
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From: Texas
i have 3.31 and i get into 10 th at 45 mph
it all depends on your right foot
the 6.7 has GOBSSSSS of torque
it all depends on your right foot
the 6.7 has GOBSSSSS of torque
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