Broke drive shaft...new one too short?

[jonathancasey19]

I broke my old drive shaft during the sled pull event at OBX and had one delivered from a local junk yard. It was suppose to be the right size according to my WB and specs. From the looks after install it appears the yoke is sticking too far out which means the drive shaft is too short???? I've driven the truck around but I'm still nervous. Any ideas?

 

[RENODMAX]

See the rust line? That's how much too short it is. How far does it go into the t case

 

[TIM Z]

That sucks Johnathan, Im with the above, You shaft looks short! :hug:

 

[hondarider552]

x3 on the shaft being to short. :rofl:
From the looks of it, you dont have but and inch or so mated with the splines

 

[jonathancasey19]

I'm just confused as to why it is too short for my truck. It supposedly came off a 03 2500hd ec/sb 143.5 wheel base which is nearly identical as mine. There is roughly 3 inches into the splines. Is that even safe to drive???

 

[jonathancasey19]

Okay I just went outside and measured the old yoke and new one. The new yoke is 6" L.O.A. with 3 1/4" exposed & 2 3/4" mated with the splines. The old yoke began to develop a new thin rust line around the 3 1/4" mark after the lift kit was installed a few months ago. I think it might be alright.

 

[RENODMAX]

If only 3 inches goes into the splines id order a longer drive shaft. That just doesnt seem right

 

[MMLMM]

Remember its not going to rust up to the seal, as the shaft slides in and out as the suspension travels up and down, and axle wrap....

 

[McRat]

I keep seeing TV ads about some dude who can't stop grinning when I read this thread.

 

[jonathancasey19]

lol thanks pat

that's a whole separate issue

 

[JoshH]

Maybe it has something to do with your avatar... :drool:

 

[ruffmanatv]

Maybe it has something to do with your avatar... :drool:

Some how I would think that would make the shaft longer.

 

[othrgrl]

Looks to me like the heavy rust line is the furthest it makes it into the seal, the next line is where it normally sat in the seal on the stock truck it came off of. With your truck lifted it looks like you got the right shaft.

 

[TIM Z]

So the answer is to order some EXTENZE ??:spit:

 

[ruffmanatv]

So the answer is to order some EXTENZE ??:spit:

You sound like you have some experience with this. :rofl:

 

[TIM Z]

Not yet.........

 

[racinmike77]

a longer shaft is good but you want to avoid having it bottom out in the TC

 

[RENODMAX]

a longer shaft is good but you want to avoid having it bottom out in the TC

I doubt you've ever had that problem

 

[racinmike77]

I doubt you've ever had that problem

I dont f and tell ask your sister though. Seriously though my buddy had a driveshaft too long for his car and it slammed into the trans so hard it ended up breaking some snaprings and stuff inside. Not a duramax but the same probably applies here.

 

[Mike]

Genetics