4.10 or 4.30
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Tuned
Joined: Aug 2005
Posts: 499
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From: Brew City, USA New Berlin
4.10 or 4.30
anyone know which gears will give me the best mileage in my 06 PSD?
When I went to 35" tires I have lost about 1-2 mpg.
Speedo and odo are dead on (according to my gps) and I'm getting about 50 miles less per tank of gas with identical driving schedules etc.
So I'm going to swap the 3.73's and just need to decide 4.10 or 4.30
When I went to 35" tires I have lost about 1-2 mpg.
Speedo and odo are dead on (according to my gps) and I'm getting about 50 miles less per tank of gas with identical driving schedules etc.
So I'm going to swap the 3.73's and just need to decide 4.10 or 4.30
Junior User
Joined: Apr 2005
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From: Southern California
I to put the 35" tires on my truck. I decided to go with the 4.10 gears and I am glad I did. The 4.10 gears put my RPM's almost back to what it was with the stock tires on. I feel that the 4.30 would have been a little bit too low for everyday driving, but it may work better for you if you do a lot of towing. If you are after mileage, I would go with the 4.10. Just my opinion!
Thread Starter
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Tuned
Joined: Aug 2005
Posts: 499
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From: Brew City, USA New Berlin
Originally Posted by Harkes2k
Im getting ready to buy an 06 as well and was also curious which one to go with...? There forums have been great and have helped me out a ton!
If you get a dually you can go 4.10 or 4.30
Senior User
Joined: Apr 2005
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From: South of Alvin, TX
It also depends on what your doing with the truck. IMO, on a truck that is 4x4 I would stick with the 3.73LS. Mine is an F350 SRW 4x4 and I opted for the single axle for 4x4 capabilities and get very good milage. My last two trucks (4x4) had 3.55 and perfrom great off-road (deep sand). Only hwy driving? Then the 4.10 and 4.30 may be a good choice but I pull a 30' fiver with 3.73 and get 11/13.5 mpg.
I personally prefer the 3.73LS since I do a lot of off road on the coast.
I personally prefer the 3.73LS since I do a lot of off road on the coast.
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Joined: Aug 2005
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I have an 03 SRW crew cab, 4X4 with 35" tires and I switched gearing to 4:56 (equivalant to 4:10s with stock tires). This is not a daily driver (I have 16,300 miles on it); I drive it on weekends and during the summer we tow to the river often. I love the gearing and no, I have not calculated milage--I didn't buy for milage. If it were a daily driver, I probably would have went with 4:10s.At 65mph I tach at 2500 RPM.
