I have a 2015 Silverado 1500 with 6.2l I'm taking the truck to the 1/4 mile track in a few months and don't know if the driveshaft is good to over 100mph. I have heard some guys say 100 is the max speed before they fail. What do you guys think.

 

If it's the factory aluminum shaft it's not rated for speeds above that.

It's why they have the stock speed limiter at around 100 mph.

 

Had my 2014 RCSB up to 140mph and still climbing once...and 120 several times.

RT

 

I'd like to upgrade it for a little peace of mind. dont need anything crazy just something that can handle 750hp and 120mph. just to have some overhead.

 

i am def going to upgrade mine!

RT

 

Driveshaft Specialists out of San Antonio did me right. Wish I would have done it sooner.

 

Does anyone have specs on what they got. I went to a well recommended driveshaft shop local to me and he said I can get an aftermarket aluminum one that would have thicker walled outter. Or get carbon fiber from some guy in FL.