Wheel and Tire Swap Question for OBX 2.7L 3.73 Gear Ratio

[Tteape0]

I have an OBX 2.7L 3.73 gear ratio. I do mostly road driving with very light off roading for camping. I plan to install the ford performance tuner and ford performance 2” lift kit before I swap wheels and tires. Will I have any issues to be aware of swapping my 32” OBX wheels to some SAS or WT take offs? Will this effect me at highway speeds (75-80 mph) with the extra 45hp and 30 lbs of torque from the tuner? Are there any long term suspension issues I should worry about and other things I need to plan for on the swap? Will putting SAS or WT take offs void my warranty since the lift kit is covered by ford?

Edit : would the extra 20 lbs per wheel and tire stress anything too much if I have a roof tent as well?

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[derichio02]

With the 3.73 I honestly would go with 33’s rather than 35’s. Is it doable, yes but a C rated 33 (285/70/17) would ride a bit better, be nicer to your mpg, fit on the tire carrier with no modifications. That is the stock size on the Badlands. Also they actually fit without a lift with the correct offset. That being said, I love the look of 35’s too

It won’t be too bad on the highway. You will lose some pep but your not racing anyway. No long term effect on suspension, but gearing could be an issue way down the road if you go with a heavy E rated tire as it will stress the gearing over time.


I thought with the 2.7 gearing was upgraded to 4.46?

This is the Wife’s 2.3 OBX 3.73, 1” Level, 33’s with 17x8 +18 Outlaws. Setup fits without removing the crash bars.

 

[Tteape0]

Thanks for the info but it didn’t really answer my question too much. I thought stock SAS wheels and tires were pretty light weight (only 20lbs more per wheel and tire than outer banks stock). I would stick with the ford stock tires so I don’t think weight will be an issue, unless I am misinformed about SAS wheel and tires weight.
I’m also not worried about lose of pep and power as the ford tuner adds 45 hp and 30 lbs of torque with a better gear shift patterns.

 

[2020FordRaptor]

I have an OBX 2.7L 3.73 gear ratio. I do mostly road driving with very light off roading for camping. I plan to install the ford performance tuner and ford performance 2” lift kit before I swap wheels and tires. Will I have any issues to be aware of swapping my 32” OBX wheels to some SAS or WT take offs? Will this effect me at highway speeds (75-80 mph) with the extra 45hp and 30 lbs of torque from the tuner? Are there any long term suspension issues I should worry about and other things I need to plan for on the swap? Will putting SAS or WT take offs void my warranty since the lift kit is covered by ford?

Edit : would the extra 20 lbs per wheel and tire stress anything too much if I have a roof tent as well?

You'll be perfectly fine. They fit and look great. Good luck!

 

[AMTRV]

Something to consider is that those torque and hp figures are at RPMs that you’ll seldom reach in everyday driving. Especially with the 3.73 gears.
Just saying that the Ford Performance tune is not a fix(or even much of a help)for on “over-tired” situation.

 

[Tteape0]

Something to consider is that those torque and hp figures are at RPMs that you’ll seldom reach in everyday driving. Especially with the 3.73 gears.
Just saying that the Ford Performance add is not a fix(or even much of a help)for on “over-tired” situation.

Do you think it’ll be “overtired” with the extra 100 lbs difference from the wheels? Any way to prevent this beside regearing?

 

[AMTRV]

If you stay with no larger than 33”s I don’t believe weight will matter a whole lot. Most 285 70 17s won’t be much heavier than your stock tires and they‘ll look great. Most have actual diameters of 32.8”.
The 3.73 ratio axles a really a good all-around axle ratio.
Just don’t get crazy with tire size and weights.
I‘ve seen the 285s do everything the 315s will do off-road…..literally

 

[Spooled]

A tune doesn't magically cancel out being undergeared. It's only going to help when you're accelerating. The quoted gains are only at full throttle and are peak numbers. That being said, if you just had to do it, sasquatch takeoffs is the way to go since they are a light tire for being a 315/70 size.

 

[Snacktime]

Put 35s on and don't look back. I was perfectly happy with my 2.3, 35s and sport mode. On the 3.73 geared broncos sport mode locks out 9&10th gear.

 

[prospectfour]

With the 3.73 I honestly would go with 33’s rather than 35’s. Is it doable, yes but a C rated 33 (285/70/17) would ride a bit better, be nicer to your mpg, fit on the tire carrier with no modifications. That is the stock size on the Badlands. Also they actually fit without a lift with the correct offset. That being said, I love the look of 35’s too

It won’t be too bad on the highway. You will lose some pep but your not racing anyway. No long term effect on suspension, but gearing could be an issue way down the road if you go with a heavy E rated tire as it will stress the gearing over time.


I thought with the 2.7 gearing was upgraded to 4.46?

This is the Wife’s 2.3 OBX 3.73, 1” Level, 33’s with 17x8 +18 Outlaws. Setup fits without removing the crash bars.

Good advice, don’t get hung up on having 35’s. Sure you could make it work, but the 33’s will make your live easier and look damn good too.

 

[RADRide]

With the 3.73 I honestly would go with 33’s rather than 35’s. Is it doable, yes but a C rated 33 (285/70/17) would ride a bit better, be nicer to your mpg, fit on the tire carrier with no modifications. That is the stock size on the Badlands. Also they actually fit without a lift with the correct offset. That being said, I love the look of 35’s too

It won’t be too bad on the highway. You will lose some pep but your not racing anyway. No long term effect on suspension, but gearing could be an issue way down the road if you go with a heavy E rated tire as it will stress the gearing over time.


I thought with the 2.7 gearing was upgraded to 4.46?

This is the Wife’s 2.3 OBX 3.73, 1” Level, 33’s with 17x8 +18 Outlaws. Setup fits without removing the crash bars.

@derichio02 did you see any hit to mpg or performance I'm looking at a very similar set up inwheel/tire weight

 

[derichio02]

@derichio02 did you see any hit to mpg or performance I'm looking at a very similar set up inwheel/tire weight

Lost about 1-2mpg initially but got better once after break in of 2k miles. Make sure your tires are Load C rated the tire store tried to vive me Load E initially in the exact same size.

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