Speed Limiter issue on m 08 Tahoe

[ANTIVNM]

hi all,
I got tired of the AFM/DOD and the speed limiter on my Tahoe. I went in and turned off the AFM/DOD and set the speed limiter to 250mph (first number that popped into my head), and wrote the file to the Tahoe.

The AFM/DOD disable worked fine, but the speed limiter is still there. Now I only adjusted the speed limiter 1 and 2. there were a few other places that had limit set, but after reading the description on them decided to leave them be.

My question is which one should I set to 250mph like the other 2, or set them all that hi?

thanks for the help

[5FDP]

You have to change the on table from GMLAN to calibration to make it work.

Also just be aware that if your truck has a factory aluminum driveshaft, it is not rated for speed above 100mph. They are known to explode above those speeds. A new built driveshaft is something you should seriously consider if you plan to go that quick.

[ANTIVNM]

You have to change the on table from GMLAN to calibration to make it work.

Also just be aware that if your truck has a factory aluminum driveshaft, it is not rated for speed above 100mph. They are known to explode above those speeds. A new built driveshaft is something you should seriously consider if you plan to go that quick.

My 1998 Camaro is the only thing I have tuned prior to my truck. I didn't have to mess with anything like that on the camaro.

I'm curious now, what does GMLAN mean and/or stand for? Will that effect anything else? And will I have to change that anytime I see it where I make other changes?

On the driveshaft issue, I'm not planning on adding any extra power to the truck, I just want to get rid of the speed limiter for when I get some asshole that won't let me by that way I'm not limited to 98. You're not saying that I would be a custom driveshaft built for just that for you?

[Bill@HPTuners]

Theres a reason the speed limiter is set to 98mph and its not because GM doesn't want you to be able to pass people on the highway ;-)

[jaydubb71]

On the driveshaft issue, I'm not planning on adding any extra power to the truck, I just want to get rid of the speed limiter for when I get some asshole that won't let me by that way I'm not limited to 98. You're not saying that I would be a custom driveshaft built for just that for you?

Yep, unless you want to turn your Tahoe into a Fred Flintstone's special...

[ANTIVNM]

Theres a reason the speed limiter is set to 98mph and its not because GM doesn't want you to be able to pass people on the highway ;-)

Ya well if I need a new driveshaft I guess I'll get one made.

I just hate knowing my shit is limited, it bothers me

Does anyone know what driveshaft is used in police tahoes? Is there a part number for it to buy one from GM maybe? They have to be rated to run triple digits, cause them fuckers do it here in Florida on a regular basis and their shit most definitely isn't speed limited by the pcm!