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Old 03-24-2005, 13:01   #1 (permalink)
Mark C.
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Drive shaft question

Can I safely have the stock two piece drive shaft in my '71 F-100 longbed
converted to a single shaft?

--
Mark
--
I was thinking of the immortal words of Socrates who once said, "I drank
what?".






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Old 03-24-2005, 13:01   #2 (permalink)
Peter Arnold
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Re: Drive shaft question

Safe? Probably, when it breaks I doubt that it would injure anyone.

Why would you want to do this?

--

Peter T. Arnold
Windsor, Connecticut
U.S.A.

1987 Mercedes 300SDL, 224 Kmi on Delvac @ 20 Kmi Changes

1995 Ford F-250 W/PSD, 178 Kmi on Rotella @ 5 Kmi Changes

2002 PT Cruizer, 67 Kmi, Every 5 Kmi with what's on sale

1954 Metropolitan {My Hanger-Queen}

None use oil between changes, go figure ;-)



On Thu, 24 Mar 2005 10:32:36 -0800, "Mark C."
<mustango656@comcast.net> wrote:

>Can I safely have the stock two piece drive shaft in my '71 F-100 longbed
>converted to a single shaft?
>
>--
>Mark


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Old 03-24-2005, 15:01   #3 (permalink)
lugnut
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Re: Drive shaft question

On Thu, 24 Mar 2005 10:32:36 -0800, "Mark C."
<mustango656@comcast.net> wrote:

>Can I safely have the stock two piece drive shaft in my '71 F-100 longbed
>converted to a single shaft?
>
>--
>Mark



Before you do that, you should do a bit of research. One of
the factors that determines the maximum RPM of a drive shaft
is the length. That is because the longer the shaft is, the
more critical balance becomes and the more likely it is that
the shaft will "whip" as the RPM increases. This also
influences the torque rating of the shaft and reduces the
critical RPM of the shaft. You can find one calculator for
critical speed here:

http://www.wallaceracing.com/driveshaftspeed.htm

The two section design also safely allows for greater
overall driveline or U joint angles which help reduce joint
failure.
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Old 03-26-2005, 23:01   #4 (permalink)
Ernie Sparks
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Re: Drive shaft question

You can probably do this if you increase the driveshaft diameter to about 6
inches with 1/4-inch wall oil pipe.


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Old 03-27-2005, 10:01   #5 (permalink)
Tyrone
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Re: Drive shaft question


"Ernie Sparks" <earnest37@sbcglobal.net> wrote in message
news:0Kr1e.15915$C47.6162@newssvr14.news.prodigy.com...
> You can probably do this if you increase the driveshaft diameter to

about 6
> inches with 1/4-inch wall oil pipe.
>
>


Yeah Ernie, you must be an automotive engineer or something, more like a
sand lot mechanic. Next thing you will be telling us is to use 4"
diameter pipe and 1/2" wall thickness. And, don't forget to fill that
pipe up with lead or concrete. Why would we expect that you know any
more about driveshafts than you do about quoting, when posting to
newsgroups?


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Old 03-29-2005, 21:01   #6 (permalink)
Steve Barker
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Re: Drive shaft question

My local drive shaft place won't make one over 77". I'm with everyone else,
why would you want to change it?

steve


"Mark C." <mustango656@comcast.net> wrote in message
news:mu2dnT8C0Ohfmt7fRVn-gw@comcast.com...
> Can I safely have the stock two piece drive shaft in my '71 F-100 longbed
> converted to a single shaft?
>
> --
> Mark
> --
> I was thinking of the immortal words of Socrates who once said, "I drank
> what?".
>
>
>
>
>
>



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Old 03-31-2005, 10:01   #7 (permalink)
Mark C.
Guest
 
Posts: n/a
Re: Drive shaft question

Cause a two piece is a pain in the butt

--
Mark
--
I was thinking of the immortal words of Socrates who once said, "I drank
what?".





"Steve Barker" <railphotonut@not.hotmail.com> wrote in message
news:Z2p2e.221$Nn.185@tornado.rdc-kc.rr.com...
> My local drive shaft place won't make one over 77". I'm with everyone
> else, why would you want to change it?
>
> steve
>
>
> "Mark C." <mustango656@comcast.net> wrote in message
> news:mu2dnT8C0Ohfmt7fRVn-gw@comcast.com...
>> Can I safely have the stock two piece drive shaft in my '71 F-100 longbed
>> converted to a single shaft?
>>
>> --
>> Mark
>> --
>> I was thinking of the immortal words of Socrates who once said, "I drank
>> what?".
>>
>>
>>
>>
>>
>>

>
>



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Old 03-31-2005, 13:01   #8 (permalink)
The OTHER Kevin in San Diego
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Posts: n/a
Re: Drive shaft question

On Thu, 31 Mar 2005 08:09:51 -0800, "Mark C."
<mustango656@comcast.net> wrote:

>Cause a two piece is a pain in the butt


How so???
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Old 04-05-2005, 00:01   #9 (permalink)
Ernie Sparks
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Posts: n/a
Re: Drive shaft question

As a matter of fact a mechanical engineer, made a lot of money over the
years designing many different types of machines and equipment ranging from
mining to EPS fabrication, as well as RVs. The laws of physics apply to
everyone and everything, given the same situation. Twisting a long shaft
produces interesting results, especially when a lot of torque is applied at
one end and considerable resistance at the other. It's pinheads like
yourself who don't understand what takes place that gets people killed and
maimed when they refuse to seek sound advice. In driveshafts larger
diameters with hollow interiors are much more sound than solid shafts. I'd
go into the physics of why but I'm sure it would sail far above your
carrot-top hairdo.


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Old 04-05-2005, 13:01   #10 (permalink)
Tyrone
Guest
 
Posts: n/a
Re: Drive shaft question

Speaking of "Pinheads" Ernie, who are you replying to? How would anyone
know? Have you ever heard of quoting?


"Ernie Sparks" <earnest37@sbcglobal.net> wrote in message
news:Ofp4e.9364$FN4.3073@newssvr21.news.prodigy.com...
> As a matter of fact a mechanical engineer, made a lot of money over

the
> years designing many different types of machines and equipment ranging

from
> mining to EPS fabrication, as well as RVs. The laws of physics apply

to
> everyone and everything, given the same situation. Twisting a long

shaft
> produces interesting results, especially when a lot of torque is

applied at
> one end and considerable resistance at the other. It's pinheads like
> yourself who don't understand what takes place that gets people killed

and
> maimed when they refuse to seek sound advice. In driveshafts larger
> diameters with hollow interiors are much more sound than solid shafts.

I'd
> go into the physics of why but I'm sure it would sail far above your
> carrot-top hairdo.
>
>



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