Gearing upgrade?? after Leveling kit + 33” tires

[DigiSnapMark]

I'm running 33" Toyo OC AT3's, stock gearing, level lift, ford tune. While the speedo is slightly in error, that's the only issue I can find. Even with the spool-up/gear selection lag, I'm consistently the first through an intersection, and get 22MPG in Colorado.

I also tow a 6000 lb trailer, and yup, the mileage drops in half, but that's pretty much expected. Tows fine, no problem in the slightest even through the high steep tunnel climbs on I70.

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[Yama_Ranger]

My APG built ProRunner with FP tune, 35’s and. GFC, gets 15.5 - 16 MPG at 70-75 MPH on level’ish ground in SoCal. Pulling 75-80 MPH in Montana with a bit of wind it drops to sub-10 MPG and approximately 150 mile useable range.

I’ve played around with various shifting approaches and have found manual shifting to deliver the best fuel economy with tow mode a close second. With 35’s if you leave it in drive and non-tow, it will consistently try to pull too high of gear which results in a bunch of load and boost. Naturally, gas mileage plummets when building a ton of boost. Keeping the RPMs up either via tow mode or manual shifting gets the engine a little closer to the sweet spot for power and torque and out of boost.

Pretty bummed we’re still waiting on gears. APG is working on test fitting a Bronco m220 front diff swap that will address our fragile front diff and open up gearing options. Fingers crossed!

 

[Blmpkn]

My APG built ProRunner with FP tune, 35’s and. GFC, gets 15.5 - 16 MPG at 70-75 MPH on level’ish ground in SoCal. Pulling 75-80 MPH in Montana with a bit of wind it drops to sub-10 MPG and approximately 150 mile useable range.

I’ve played around with various shifting approaches and have found manual shifting to deliver the best fuel economy with tow mode a close second. With 35’s if you leave it in drive and non-tow, it will consistently try to pull too high of gear which results in a bunch of load and boost. Naturally, gas mileage plummets when building a ton of boost. Keeping the RPMs up either via tow mode or manual shifting gets the engine a little closer to the sweet spot for power and torque and out of boost.

Pretty bummed we’re still waiting on gears. APG is working on test fitting a Bronco m220 front diff swap that will address our fragile front diff and open up gearing options. Fingers crossed!

I was wondering about the m220 the other day. Isn't it like 4.77:1 or something? Should be perfect for 35s

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