Can anyone confirm that the bullydog programmer with the latest firmware can change to the DIC/Speedo etc. for 35" tires or bigger?

Yes, You Need To Have The Latest Version For It To Work. Mine Works With 35's .

I am not sure but I think 35's are as big as the Bully Dog can adjust for. Anyone confirm this? I have not gotten mine back from BD or I would check myself.

you can adjust up to 45" but over 35" sets off the abs light.

I'm running 285's (32.8") and set for 33"... still about 1-2mph slow at 70. I'm thinking about reprogramming for 33.5" or 34".
I'll be doing a distance check tomorrow comparing pre-Pup with current to make sure the ODO also updated.

you can adjust up to 45" but over 35" sets off the abs light.

thats lame....I am going to try to update my stock computer with a tech 2 to the h2 tire size (315/75/18) and see if that works since thats a 35" tire anyway. I will post back the results!

I don't think the Tech2 will go over 285, and even at that, it's only for the ABS functions.

I am thinking that the BD on higher than 35's causes the ABS light because of the mismatch between the ABS and VSS data.
Stock, you can run 40s and not get an ABS light because both the ABS and the VSS still indicate that you are doing the same (relative) speed.

When you switch the VSS to indicate that you have 35's or larger, there is now a 10% discrepancy between what the VSS and ABS are "reading" as the vehicle speed.

I would think that if you could use the Tech-II to get at least a 285/75 into the ABS, then you should be able to go as high as 38s without tripping the ABS light.

I don't think the Tech2 will go over 285, and even at that, it's only for the ABS functions.

I am thinking that the BD on higher than 35's causes the ABS light because of the mismatch between the ABS and VSS data.
Stock, you can run 40s and not get an ABS light because both the ABS and the VSS still indicate that you are doing the same (relative) speed.

When you switch the VSS to indicate that you have 35's or larger, there is now a 10% discrepancy between what the VSS and ABS are "reading" as the vehicle speed.

I would think that if you could use the Tech-II to get at least a 285/75 into the ABS, then you should be able to go as high as 38s without tripping the ABS light.

Thats a great idea. I will give that a try assuming that I can't put the h2 tire calibration in there!