3.73's or 4.10's
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Cargo Master
Joined: Aug 2005
Posts: 2,051
Likes: 1
From: Alberta, Canada
3.73's or 4.10's
It looks like the 4.10's may be available next year on the CC SRW trucks. I'm trying to decide, if this is true, should I go for the 4.10's and the 20" wheels or stay with the 3.73's and 18" wheels. Makes a difference of 122rpm at 65 mph. 1745rpm with the 3.73's & 18's vs. 1867rpm with the 4.10's & 20's. I tow a 30' fiver that weighs about 10K in the summer. Annually I tow about 3k miles and put about 15k on the truck total. What are your opinions on this????
Elder User
Joined: Sep 2006
Posts: 622
Likes: 0
From: Lincoln, NE
I dont think the wheel makes a lick of difference. The overall tire diameter on that wheel does. If you're staying stock or near, the 3.73 is going to do you a little better on mileage. The 4.10 is going to do a little better on pulling. I have a CC 4x with 3.73, my tires are right around 33" (285 75 16) and the trailer is about 12000 or just under. I would only consider gear change if I changed tires up - to a 35 for instance. Which I'd have to lift to fit in there.
That being said, the deeper the distance between the tread and the rim, the harder it is to get a heavy load rating. In theory, you really shouldn't have any issues getting an E on an 18 or 20, but if you did move sizes up in the future, the 20 might limit your tire selection options less than the 18. I know with 16's is darn hard to get a 35" with an E rating.
That being said, the deeper the distance between the tread and the rim, the harder it is to get a heavy load rating. In theory, you really shouldn't have any issues getting an E on an 18 or 20, but if you did move sizes up in the future, the 20 might limit your tire selection options less than the 18. I know with 16's is darn hard to get a 35" with an E rating.
Post Fiend
Joined: May 2006
Posts: 10,007
Likes: 4
From: Central Florida
You didn't say gas or diesel. My Crewcab with a 5.4l and 35" tires need allot more gear than 3.73s. The 20" wheels will push more weight away from the axis, it might add a 1/10th or 2 to a 1/4 mile time but you shouldn't have a problem.
Posting Guru
Joined: Jul 2006
Posts: 1,191
Likes: 0
From: New York
Originally Posted by Stoner
It looks like the 4.10's may be available next year on the CC SRW trucks. I'm trying to decide, if this is true, should I go for the 4.10's and the 20" wheels or stay with the 3.73's and 18" wheels. Makes a difference of 122rpm at 65 mph. 1745rpm with the 3.73's & 18's vs. 1867rpm with the 4.10's & 20's. I tow a 30' fiver that weighs about 10K in the summer. Annually I tow about 3k miles and put about 15k on the truck total. What are your opinions on this????
