converting to a straight drive shaft? - Ford Powerstroke Diesel Forum
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Old 12-17-2013, 05:56 PM
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converting to a straight drive shaft?

so i found out my center bearing on my drive shaft is going out due to not having enough of a drop bracket. so to put in a new drop bracket and have the bearing pulled and replaced i can have a solid driveshaft made.

SO my question is what are the cons to do this im not running much for mods but a chip,intake,exhaust, would i be better off with a solid drive shaft or just replacing the bearing?
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Old 12-17-2013, 05:57 PM
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i have a solid DS, i dont see any CONS to it?
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Old 12-17-2013, 06:00 PM
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Quote:
Originally Posted by Young-SC-Owner View Post
i have a solid DS, i dont see any CONS to it?
AWESOME!!! I've just heard **** from people that don't even run them so i figured id see if some one who had one like them

Thanks for your input!
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Old 12-17-2013, 06:00 PM
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I dont see any pro's to it...

For every 1" of lift over 3" add 1/4" of spacer to the center support...
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Old 12-17-2013, 06:09 PM
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Quote:
Originally Posted by CSIPSD View Post
I dont see any pro's to it...

For every 1" of lift over 3" add 1/4" of spacer to the center support...
I see plenty of pros with it.

1 its 150 buck cheaper than having the driveshaft pulled and have and new bearing pressed in and buying an adjustable carrier bracket.

2 you never have to worry about that bearing again.

3 it a straight shot to the rear end. in my eyes its a weak point with the carrier bearing cuz it is a pivot point but thats my opinion.

4 When pull a heavy load when im just taking off or creeping at a light it has a slight bounce and i can see that bearing move when it dose this but it is fine when i haul lighter stuff.
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Old 12-17-2013, 06:16 PM
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there is a reason that many shops reportedly won't make them that long IMHO

I like having a center support and I use an adjustable drop carrier bracket that allows for the angle to be adjusted
I have an 8 inch lift for the last 20,000 and for the first 60,000 I had a 6 inch truck just rolled 100,000 miles

still on all the original u joints and carrier

I just bought a carrier bearing from ford for 60 bucks and will replace it for PM


the cost for a 1 piece is a con if the 700 estimate I have seen is true ?

the damage it will do if it gets loose is a con

less parts is a plus

other than that if I had a vibration i couldn't find I might spend the 700 bucks for one
but you won't be alone here are more and more folks giving them a try


EDIT I was typing when u posted can u explain your math of the 1 piece being 150 cheaper? not calling you out just curious

I bought my carrier bearing for 60 bucks and 3 u joints for 80 the pmf drop was 150 IIRC

the one piece was reportedly just over 650 I thought ? I guess you do have resale value in your old DS or maybe a discount from the shop who builds the 1 peice if you find a local shop willing to do this

Last edited by ZMANN; 12-17-2013 at 06:24 PM.
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Old 12-17-2013, 06:18 PM
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The reason they don't use a one piece in the first place is that it's not strong or safe enough.

You have to realize that thing is spinning at a tremendous speed and the smallest amount of off balance or alignment can cause it to bend and toss itself out from under the truck.

It has happens numerous time on the dyno when people hotrod 1/2 ton Chevy pick ups.
It's just too long of a shaft.
Really, if it's cheaper (which it is) don't you think the factory would have been happy to use a one piece shaft if it was a good idea?
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Old 12-17-2013, 06:19 PM
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Just to add, the damage ANY DS will do if it gets loose without a hoop is a CON. So that argument is invalid
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Old 12-17-2013, 06:22 PM
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Quote:
Originally Posted by Young-SC-Owner View Post
Just to add, the damage ANY DS will do if it gets loose without a hoop is a CON. So that argument is invalid
Not really.
A 6" wooden dowel is much harder to snap than a 12" wooden dowel.
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Old 12-17-2013, 06:27 PM
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invalid argument it is not plus it's just a discussion ;-)

think about it and both ends the carrier is a drive shaft loop so it is captured in the loop a failure at the other ends will not be as violent IMHO

and i have had a long DS let go it was bad news

if u want to pole vault far do you want a short or long pole LOL
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