Speedo Calibration

[firewrench]

I am considering uping my tire size from 265/70R16 to 285/75R16. Thais will increase my tire height by almost 2 inches, puttting my spedo off about 3-5 MPH. Does anyone out there know of a way to recalibrate the speedo, or is there an aftermarket chip that calculates tire size? Trying to do the research before I make a decision. Thanks in advance

[mhadden]

Originally Posted by firewrench

I am considering uping my tire size from 265/70R16 to 285/75R16. Thais will increase my tire height by almost 2 inches, puttting my spedo off about 3-5 MPH. Does anyone out there know of a way to recalibrate the speedo, or is there an aftermarket chip that calculates tire size? Trying to do the research before I make a decision. Thanks in advance

As far as I know, there is nothing for speedo or engine recal. I'm not sure if Toyota can do it for you either...

[gkeas]

Originally Posted by firewrench

I am considering uping my tire size from 265/70R16 to 285/75R16. Thais will increase my tire height by almost 2 inches, puttting my spedo off about 3-5 MPH. Does anyone out there know of a way to recalibrate the speedo, or is there an aftermarket chip that calculates tire size? Trying to do the research before I make a decision. Thanks in advance

Hypertec(h?) has a chip for speedo calibration up to 39" for our trucks. I don't have a link, but it's $299.

I get mine put in tomorrow along with a few other things.

[TUNDRA TIMES]

Originally Posted by firewrench

I am considering uping my tire size from 265/70R16 to 285/75R16. Thais will increase my tire height by almost 2 inches, puttting my spedo off about 3-5 MPH. Does anyone out there know of a way to recalibrate the speedo, or is there an aftermarket chip that calculates tire size? Trying to do the research before I make a decision. Thanks in advance

HYPERTECH MAKES ONE FOR 2007 TUNDRA. BOUGHT IT THROUGH 4 WHEEL PARTS. NEW ON MARKET. HAVE TO REMOVE ODOMETER FACING TO INSTALL. UNIT HAS TO BE UPGRADED VIA COMPUTER AND CD DISK BEFORE INSTALLATION. AROUND $200.