Alright well I knew it was going to happen sooner or later... my driveshaft broke the other night. Its had a pretty noticeable vibration lately around 50 mph to 60 mph but I fig it was just one of my tires didnt think it was the driveshaft. Well when it happend I was going about 70-75 then all of a sudden it started howling real bad then boom lol. Pulled over right away I already knew what had happen cuz I can hear the damn thing hitting everything under the truck. Look under the front half was still in the trans and the other half laying on the ground connected to the rear axle. Inspected it earlyer today and nothing got messed up at all thankfully, the muffler has a lil dent but nothing major happend. Just called onstar too there gunna come and pick it up here in a few min. Now dont think that oh **** it broke at such a low speed mine will brake too. No honostly I have taken my truck way over 100 SEVERAL times so I guess slowly but surely the structural integrity of the driveshaft was going to ****, hence starting to vibrate from 50 to 60. Well fig whats a story without pictures lol here are some pics of it...




Alright well looking to upgrade now anyone have any ideas? I was thinking of sending in some specs to The Driveshaft Shop and having them make me a 2 piece one but still not sure. My truck isnt making alot of power right now but when I go with the 408 I want somthing thats going to last.

 

How low are you? Seems like it was rubbing the crossmember.

 

Thats kind of an odd failure, usually its not so clean and even...

 

the only reason it was rubbing the crossmember was because the trans was still spinning after it broke and that front half was resting on it. My truck is stock hight right now minus the factory rear lift blocks

 

2 piece shaft? I've never heard of them breaking. why are gm driveshafts such pieces of ****!?

 

no mine is a one piece (well 2 if you look at it right now) and I want to put in a 2 piece because they are alot stronger.

 

2 piece is the way to go IMO. i havent seen one break over the years. i did see a u-joint break though.

 

I picked up my friends stock drive shaft and it was lifting a piece of a cloud. Can't believe they even hold together during normal driving.

 

just install a 2 peice thats built for your truck imo.

all you need is a crossmember and a 2 peice dshaft

 

you got lucky. mine took out a built trans, and muffler and cross member and.....well you get it. what pissed me off was the $500 billet output shaft bent and took out the planets.... oh well...i have to run it stock ish till income tax.