Two piece drive shaft vs one

I'm wanting to go to a two price driveshaft. I'm passing the critical speed on the one piece and don't want it blowing up. I've already developed a vibration at high speed and now have it at certain speeds.

I know from 2011+ some CCSB came with two piece driveshafts. Anyone have the part number and would I have the bolt holes already for the carrier bearing?


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Jomax,

if you plan on bumping the power on the truck at some point, and you're going to already be spending the money on a two-piece, take the time and go with F450 driveshaft.

the F450 driveshaft comes with bigger u-joints and a larger slip joint. I've never gotten around to this, but a lot of other members here have. I know Jared has for sure.

Good Luck.

-PM.

I'll trade you?

actually I have a single steel one pice lol nvm

This is the first I've ever heard of someone wanting a 2 piece... why???


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95cobby said:

This is the first I've ever heard of someone wanting a 2 piece... why???


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A two piece would have a higher critical speed. I'm way over the safe zone on the factory single piece (as are most guys here if you run it over 95mph)

I called driveshaftspecialists in TX yesterday and they can build me a 5in aluminum one piece that will be safe up to 160mph in my truck. I'll be going with that. It'll also have bigger U joints then factory.


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PrecisionEngine said:

Jomax,



if you plan on bumping the power on the truck at some point, and you're going to already be spending the money on a two-piece, take the time and go with F450 driveshaft.



the F450 driveshaft comes with bigger u-joints and a larger slip joint. I've never gotten around to this, but a lot of other members here have. I know Jared has for sure.



Good Luck.



-PM.

Click to expand...

That might be bolt in for a long bed. But mine is a short bed. I'll look into it though!


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One piece 5" al...done

TitoBandito78 said:

One piece 5" al...done

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Yup, 750$ shipped to my door. Ordering it today.


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can you please send me a link? does that increase u joint size or just the shaft? would 450 shaft be able to be used on 250 joints?(interchangeable)

BIG JUICE said:

can you please send me a link? does that increase u joint size or just the shaft? would 450 shaft be able to be used on 250 joints?(interchangeable)

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U joints are increased as well. I'll send you the link when I get home.


I would never buy another truck again without checking max critical speed on a driveshaft. It's crazy how many people out there are taking a risk. (Unless everyone stays under 100mph).....


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Used to be a video going around showing the flex in a normal driveshaft at speed.

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BIG JUICE said:

can you please send me a link? does that increase u joint size or just the shaft? would 450 shaft be able to be used on 250 joints?(interchangeable)

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Here it is. Talk to Jeff over there. Tell him you want the same driveshaft as David with the 2015 F-250. That guy knows his stuff..


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There is no link. Where did you order it from? I went through cci for the 5"

TitoBandito78 said:

There is no link. Where did you order it from? I went through cci for the 5"

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No idea why the link didn't post. Here it is.

http://www.driveshaftspecialist.com/Aluminum html/TruckAluminum.html


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So I installed it and man, all the vibrations are gone at big speed!!! Sucker is beafy! I highly recommend guys that mod their trucks to upgrade their driveshaft...











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Nice! Looks great!

Jomax said:

So I installed it and man, all the vibrations are gone at big speed!!! Sucker is beafy! I highly recommend guys that mod their trucks to upgrade their driveshaft...

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Thats a good deal!I can't believe you havent installed the NO LIMIT INTERCOOLER .

Sportchassis06 said:

Thats a good deal!I can't believe you havent installed the NO LIMIT INTERCOOLER .

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I did install it. Leaking has stopped but my water pump is bad. I think the impeller is spinning in place, temps are still high. Will get the pump changed out here shortly. But at thing point, it'll be fixed then traded in.


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Hope you keep all your aftermarket parts off it...