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fumble Enthusiast

fumble

Posted
Posted

I know this topic has been covered many times, but I can't seem to find an answer to my question. I went from 245/75/16 to 265/75/16.

 

Did any of you notice that there was a loss of "Gitty up" when you get on the pedal? I just feel like the truck is doggin now! Will this change when I get the speedo recalibrated?

 

Any help would be greatly appreciated.

 

Thanks,

 

Dan

1ntimid8r Enthusiast

1ntimid8r

Posted
Posted

You increased the tire size and increased it's rotating mass, so of course you are going to lose some accelleration and decelleration.

 

Typically when you jump to a bigger tire size you change out the rear end gear and install larger brakes. a 245 to a 265 swap doesn't seem like that big of a change, maybe it just seems like it has lost some of it's oomph

Wingnut Senior Enthusiast

Wingnut

Posted
Posted

A tune will straighten out your speedo/odometer calibration and restore a bit of lost power...But gears are what's really going to help.

fumble Enthusiast

fumble

Posted
  • Author
Posted

It currently has 4.10 rearend. What would be optimal?

J45p3r Enthusiast

J45p3r

Posted
Posted

With 4.10s thats about as good as you'll get with that setup. I went from 265 to 285 and it was very noticeable (I only have 3.73 gears).

svensk Senior Enthusiast

svensk

Posted
Posted
With 4.10s thats about as good as you'll get with that setup. I went from 265 to 285 and it was very noticeable (I only have 3.73 gears).

I have 265's with 3.73's and my new gear ratio is something like 3.56 I believe.

rdessewffy Enthusiast

rdessewffy

Posted
Posted
I know this topic has been covered many times, but I can't seem to find an answer to my question. I went from 245/75/16 to 265/75/16.

 

Did any of you notice that there was a loss of "Gitty up" when you get on the pedal? I just feel like the truck is doggin now! Will this change when I get the speedo recalibrated?

 

Any help would be greatly appreciated.

 

Thanks,

 

Dan

 

It has to be in your head. You are only 1.18 inches taller.

Original tire

245x.75x2 Divide by 25.4=14.7+16=30.47inches

New tire

265x.75x2 Divide by 25.4=15.65+16=31.65inches

fumble Enthusiast

fumble

Posted
  • Author
Posted
I know this topic has been covered many times, but I can't seem to find an answer to my question. I went from 245/75/16 to 265/75/16.

 

Did any of you notice that there was a loss of "Gitty up" when you get on the pedal? I just feel like the truck is doggin now! Will this change when I get the speedo recalibrated?

 

Any help would be greatly appreciated.

 

Thanks,

 

Dan

 

It has to be in your head. You are only 1.18 inches taller.

Original tire

245x.75x2 Divide by 25.4=14.7+16=30.47inches

New tire

265x.75x2 Divide by 25.4=15.65+16=31.65inches

 

 

Probably is! When I had the Jeep, everytime I did a mod, it seemed like something was right as soon as I got in!

z85violator Enthusiast

z85violator

Posted
Posted

if the old tires were p245 and the new tires are lt265s they will wiegh quite a bit more, more plys=more wieght.

i went from p245s to bfg lt285s w/4.10 and could tell the difference right away.

brnr17 Enthusiast

brnr17

Posted
Posted
I know this topic has been covered many times, but I can't seem to find an answer to my question. I went from 245/75/16 to 265/75/16.

 

Did any of you notice that there was a loss of "Gitty up" when you get on the pedal? I just feel like the truck is doggin now! Will this change when I get the speedo recalibrated?

 

Any help would be greatly appreciated.

 

Thanks,

 

Dan

 

It has to be in your head. You are only 1.18 inches taller.

Original tire

245x.75x2 Divide by 25.4=14.7+16=30.47inches

New tire

265x.75x2 Divide by 25.4=15.65+16=31.65inches

 

that's not necessarily the case ... although they say they are 265 the actual diameter of the tire varies from manufacturer ... if you look up the specs it will tell you. just in the 265 size it can vary by as much as an inch

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