CCSB 1 Piece Driveshaft?

ToMang07 · Jun 28, 2015

ncollins64 said:
My local guy in nashville built mine no problem. Think it was around 500 total but that was all labor, joints etc. told him it was going behind a 1k hp diesel and he told me if it breaks then he will fix it for free. It's balanced and I have zero issues. He does ship also. It's daves driveshaft in Nashville tn. Let me know and I can get his number.

I'll check him out, doesn't look like he has a website tho.

ncollins64 · Jun 28, 2015

I don't think he does, he's old school. Just google him and it should pop up. He doesn't even weld weights on, uses a lathe and the old school heat method. I actually just showed up and he built it right in front of me.

IHPowerstroke7.3 · Jun 28, 2015

I think some of the 6.7 ccsb trucks came with a one piece aluminum shaft from factory. Might have to change the yoke at the transmission or transfer case and rear diff. But lengths might be close.

ToMang07 · Jun 29, 2015

That damn thing is totally FUBAR'd.

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gman1 · Jun 29, 2015

ToMang07 said:
So after doing more research, I think I will be going with the CCI 4" steel shafts, they use either 1410 or 1480 u-joints, which as far as I can tell offer both more u-joint flex as well as being beefier. Price is a bit more, ~$100 more. Still not 100% decided tho, I'll be getting my measurements for them and calling both on Monday.

CCI built my 5'' steel 1 piece rear drive shaft for my pulling truck. They do excellent work. Well worth the money. You wont be sorry!

ToMang07 · Jun 30, 2015

Well, just ordered from CCI. Nice guys to talk to, very straightforward.

Ended up going with 5" Aluminum, after talking to the guy he made a good point that at high speeds I could end up over-spinning 4", and I'd rather not have to worry about it, and with a 10% off discount, It was only $50 more to go from 5" Steel to Aluminum.

Also did the upgraded u-joints, so between the shaft and the beefy u-joints the new drive shaft will most certainly outlast the truck, lol

I'll post up pics and a review after I get it installed. Final size was just a hair under 72"

ncollins64 · Jun 30, 2015

Great looking forward to pics and reviews.

TyCorr · Jun 30, 2015

Thats awesome Tom!! Cannot wait to see it. Did he give you any caveat about 1 piece vibrating or anything?

ToMang07 · Jun 30, 2015

TyCorr said:
Thats awesome Tom!! Cannot wait to see it. Did he give you any caveat about 1 piece vibrating or anything?

Not at all, he was just worried about over spinning a 72" long 4" shaft, which made sense to me. I don't go THAT fast too often, but I've had it up over 100, so I figured better safe than sorry. Might as well do it right, eh?

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TyCorr · Jun 30, 2015

Yea. Whats the math there? What is the factor in overspinning a 4"

ToMang07 · Jun 30, 2015

TyCorr said:
Yea. Whats the math there? What is the factor in overspinning a 4"

I didn't write it down, but basically to many RPMs could cause it to bow and fail.

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TyCorr · Jun 30, 2015

Oh, yea, duh...i can see that. Hence the carrier bearing. Takes the yawl out of the shaft. So they keep increasing diameter to counter it.

ToMang07 · Jul 2, 2015

http://www.therangerstation.com/Magazine/summer2008/ujoints.htm

ToMang07 · Jul 8, 2015

Wow...I should have done this year's ago.

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Isobaric · Jul 8, 2015

TyCorr said:
Yea. Whats the math there? What is the factor in overspinning a 4"

Critical speed of a shaft, or the speed where it folds itself up into a taco, increases as shaft diameter and wall thickness increases.
Decreases as shaft length increases.
Modulus of elasticity, mass, and CG also play in.

If you are feeling mathy : http://www.roymech.co.uk/Useful_Tables/Drive/Shaft_Critical_Speed.html

If you want to plug-and-play:
http://www.wallaceracing.com/driveshaftspeed.htm

TyCorr · Jul 8, 2015

Mod of E? I know what that is but i wasnt sure that was the correct critical principle.

Ill read the links.

The first link is excellent. Didnt even look at the second.

TyCorr · Jul 8, 2015

Did the definition of Modulus of Elasticity change somewhere? Or are these guys taking kiberties with its meaning?

I learned it long ago and seems to have been explained differently.

TyCorr · Jul 8, 2015

ToMang07 said:
Wow...I should have done this year's ago.

Sent from the pocket porn device.

Are you going to regale us with pictures of it installed? And if you want to pm me Tom, or eight one five/five 0 three///43eighty three some details Id be happy.

I did mine two summers ago. I had a biiiiiitsh of a time removing the carrier bearing. It gets more difficult after every rust cycle. I thought "why not replace those 250k mile universals?" Apparently that was a dumb idea. They were meant to last forever. They were ok still. I was getting some feedback as vibration which was most likely the bearing piece not the joints.

Anyway, never again! What a pita.

Now thanks to your tireless research Ill just follow suit and get one of these shafts.

ToMang07 · Jul 8, 2015

CCI 1-piece Drive Shaft Review

So as anyone following along knows, I ordered a 1-piece, 5" aluminum drive shaft from CCI. (http://www.ccidriveline.com)

I ordered 6/30, (Tuesday) they contacted me Thursday and said it was done. I paid and they shipped it out that day. Even with the holiday weekend (Independence Day) it arrived in excellent condition yesterday. (7/7/15) It was shipped in a hard round cardboard tube, inside a long box.

So from ordering, to fabrication, to shipping, it took a week for me to get it.

I did end up cutting out the bracket for the carrier bearing as there was less than 2" of clearance, and I didn't want to take any chances with the new shaft, that took all of 5 minutes.

Installation was a snap. Installed it myself with no help, took maybe 20 minutes.

First impressions is there really isn't much loss of clearance. The shaft looks great, very clean.

Driving, I have taken it off-road to test for any binding and found none, performed as good as or better than stock. As far as speed, only up to 75 so far, I'll take it further when the opportunity arises.

Biggest win.... NO MORE VIBRATION!!! I've had the truck for ~5 years and always had some sort of vibration from u-joints, carrier bearing, or combo thereof.

No more. Smoother than it's ever been, great investment! Very happy with it!

Pics to follow!