^^ I notice most the ones breaking are 2wd also.

 

i know you didnt direct it to me but to give you reference i paid like 520 for mine. i bought a used nascar dynotech driveshaft for super cheap, pulled off the billet yoke and sent it to brent at DSS. so i paid for the shaft with u joints, they put my yoke on.
JSYK i priced out the parts used to make them and if you were to buy the parts it would cost you the same as having it built so it is not a crazy mark up. iirc the tube itself was around $300 and the ends around 70 a piece

 

Just posted a video of me going over 100. The video ends at 90ish but almost everyday I open her up

 

Nothing done to heads or motor except headers, under drive pulley, cust tune thru Diablewtunes( hes a tuner that works thru Diablo programmers to load cust tunes) A few asthetic mods to get it sittin n lookin right all in my sig at bottom of my posts... Im not sure what it pushes .. Hoping to add more in future but right now in need of transmission .. I run 110-115 until i get a vibration but im most sure its the tires ..Driveshaft Specialties says it can handle a lot more torque and HP than what i have but on top end all shafts have a limit ..beings i only have 3:42s in rear end im good ..they said Its when u go to tall gears and bigger cams and still run on top end the rpms on the shaft is what pops em .. They ask u all that info when u call for one so they kno what ur in need of .. I cud have gotten 4" n saved cple dollars but i kno im gunna put more into it so i just went ahead and got 5" for ease of mind ..

 

ECSB 4x4 here, stock limiter has been hit once, no vibration

 

even if this thread is old, after my bbp tune before i was lifted i had mine at 5500rpm in 3rd gear. i put my gear ratio's into a calculator and it said it could be around 140.

 

the vibration is a sign of ****'s about to explode in your future.

 

The 2WD shafts are a few inches longer then the 4WD. At 100+mph, a few inches can make a world of difference. (That's what she said)

 

I see your in Swamp People land, AKA south LA. I live in Gonzlaes. Any chance your ever out that way? Id like to take a look at it for mine.

 

i have 08 rcsb have had it over 130 couple of times back when i first got it then got little smaller tire and it exploded on me about 120 and then it went under my tire n blew it out pretty scary so i got a stock replacement and now it starts vibrating at 115mph its steel can i justget it high speed balanced?? thanks