changing speedometer gear in xfer case

[ed hess]

anybody know if gm offers a selection of gears for the speedometer to go into the transfer case.

the syty cd only shows one which is for the 3.42 dif gear ratio.


I am just about t go out on a witch hunt for something that can change the calibration electrically....

ed

 

[protosy]

if i am not mistaken you change out the DRAC that (the white box that attaches to the stock ecm) to modify the speedo calibration.

chad

 

[4C FED]

:flash:

 

[Mad Mike]

Re: changing speedometer gear in xfer case

anybody know if gm offers a selection of gears for the speedometer to go into the transfer case.

the syty cd only shows one which is for the 3.42 dif gear ratio.


I am just about t go out on a witch hunt for something that can change the calibration electrically....

ed

What are you up to now Ed?