rjw

iTrader: (3)

Am I going to have a problem with the driveshaft on a 2105 Silverado LTZ? on the dyno or on the road, it has already hit 135 mph (beyond the tire rating) on several occasions? (truck was stolen...lol)

thx

wuznme

iTrader: (2)

Not much good for anything over what speed limiter was set to and we know it is not set anymore.

rjw

iTrader: (3)

well it wuznme...

Does this apply to 4x4's which I imagine have a much shorter driveshaft?

thx

03sierraslt

iTrader: (22)

Yes it still applies.

rjw

iTrader: (3)

ok, so 100 mph limit, how about on a dyno??

03sierraslt

iTrader: (22)

I am not saying 100mph limit just saying they are weak and I would be careful. The driveshaft doesn't care if you are on a road or a dyno, critical speed is critical speed.

07Softail

FYI the PPV Tahoe's speed limited to 140MPH so these shafts are fine. And I have had mine for an extended time at 140MPH after the BB Tune.

RT

Det

I'm ordering an upgraded shaft just to be safe. Unless you know the exact wall thickness you can't know for sure what speed it's save up to.

FFDP

iTrader: (2)

But do they come with a different driveshaft is the question. Possible they are steel shafts and not thin wall aluminum??

After seeing many pictures of NNBS driveshafts that have exploded, I'd never want to chance it.

07Softail

My work Truck came with a steel shaft and the PPV's do also. Yeah there will still be a chance it will let go especially behind a boosted motor and in reality I will probably upgrade mine to a better one in the future. Do the DC and CC come with two piece shafts?

RT