Tire/wheel weights

[ThumperF150]

Thats cool your F150 must be amazing offload now, does it keep up with the jeep?
I'd think a 3.73 would help a lot, do you have the 9.75" rear locking diff? Check out the diff cover in my signature.

You can change the gear ratio with a tune or Forscan, and tire size - (revs per mile) so your speedo is correct.

Honestly, I have my truck all fixed up but it is going to be a dedicated garage gal, street queen, pavement princess or mall maiden. Whatever anyone wants to call it. Don't care. I like it this way. The most off road it will ever see is carrying my dirt bike down a graded dirt road. My Jeep does the heavy lifting off road and it for sure has been used, with multiple parts broken and replaced.

Are you SURE Forscan works on the 24s? I have seen posts that it does and that it does not. Additionally, I do not have a laptop so for me to get in Forscan it will be a bit of an investment.

On my Jeep I have different gears and a Tazer to adjust tire diameter and gears and a bunch of other stuff. The speedo is exactly the same as my GPS.

With my truck, my GPS is a solid 10% faster than the speedo (44 mph vs 40 mph) which makes sense because my new tires are right at 10% taller. Going from the stock 3.73's in my 9.75 down to 4.11s is about a 10% difference as well so it should get me within 1 mph for speedo accuracy, Forscan or not.

I hope.

Oops, there it is . Yes. I have the Dana Spicer version of that diff cover sitting on my bench now.

Thanks

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[Calson]

Even the Nitto tires on my diesel truck that were load rated for 3750 lbs at 80 PSI weighed 43 lbs. More weight means more energy just to keep the wheels spinning at that wastes gas.

 

[ThumperF150]

Even the Nitto tires on my diesel truck that were load rated for 3750 lbs at 80 PSI weighed 43 lbs. More weight means more energy just to keep the wheels spinning at that wastes gas.

Yep. I’m fully aware of all of that. And rotational weight is worse.

I. Don’t. Care. My truck is almost 5 months old and has less than 800 miles. I work from home so milage does not matter.

 

[Babbage]

Re: Forscan on 24's - I don't know, I'm sure they will update it soon. You could also perhaps just have the Ford dealer make the revs per mile change along with the rear gear change to 4.10's

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