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Aluminum driveshaft, real world difference??
#371221
07/09/09 06:39 PM
07/09/09 06:39 PM
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Joined: Oct 2003
Posts: 3,698
NE Oklahoma
Von
OP
master
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OP
master
Joined: Oct 2003
Posts: 3,698
NE Oklahoma
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Had to take the shaft from our truck to be rebalanced.
I noticed the guy had a sign about aluminum drivelines. Thought Id ask how much, just for the heck of it.
Turns out they have 6 pallets of new aluminum shafts that are for Crown Vics. Bought em from a defunct Ford dealership and got them for way cheap.
They have them in 3.5 and 4 inch diameters.
The price is good at 250 for the shaft, (cut and balanced to what I need) plus the price of joints.
I need another shaft for another car Im slowly putting together and I could use my current shaft for it.
Any track results from swapping to aluminum?
Thanks
72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72.
Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.
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Re: Aluminum driveshaft, real world difference??
[Re: Von]
#371223
07/09/09 06:41 PM
07/09/09 06:41 PM
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Joined: Jan 2003
Posts: 2,697
Renton Wa
topfueldart
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master
Joined: Jan 2003
Posts: 2,697
Renton Wa
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Depends on your goals.. I think Mark Williams limits their 3.5 inch Aluminum driveshafts to like 500 horse... So if your planning on making much more than that, your pushing the limit...
11.48 @ 120 with a 1.80 60' 318, stock 1.88 heads, stock 904, Pump Gas, 13 lbs of boost.
9.94 @ 134, 318 on pump gas, 14 lbs w/ Eddies, transbrake 727, 3600 lbs, 3.54 gear and 28's.
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Re: Aluminum driveshaft, real world difference??
[Re: topfueldart]
#371224
07/09/09 06:47 PM
07/09/09 06:47 PM
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Joined: Jun 2003
Posts: 9,225
Charleston
sixpackgut
Drag Week Mod Champion
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Drag Week Mod Champion
Joined: Jun 2003
Posts: 9,225
Charleston
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dynotech told me and quicktree that they run aluminum shafts in cars with over 1000hp. moore and moore on here gave a bigs thumbs up to a aluminum shaft after he kept slightly bending a chromemolly shaft i believe
Gen 3 power 6.22@110, 9.85@135
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performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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Re: Aluminum driveshaft, real world difference??
[Re: Von]
#371225
07/09/09 08:23 PM
07/09/09 08:23 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Is this another trick question???  It's not worth ANY ET.......I wouldn't run one unless you're trying to get weight out of the car........ 
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Re: Aluminum driveshaft, real world difference??
#371227
07/09/09 08:36 PM
07/09/09 08:36 PM
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Joined: Jan 2003
Posts: 5,894
Florida
Locomotion
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master
Joined: Jan 2003
Posts: 5,894
Florida
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Quote:
Is this another trick question???
It's not worth ANY ET.......I wouldn't run one unless you're trying to get weight out of the car........
Any reduction in weight, especially rotating, is worth "something" in ET's, even if it is not easily seen.
Not sure about durability comparisons, but it may be possible that a broken aluminum driveshaft will produce less collateral damage than a steel one!
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Re: Aluminum driveshaft, real world difference??
[Re: Locomotion]
#371228
07/09/09 08:49 PM
07/09/09 08:49 PM
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Joined: Jan 2003
Posts: 6,591
Canton, Ohio
Sport440
master
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master
Joined: Jan 2003
Posts: 6,591
Canton, Ohio
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Quote:
I never looked into aluminum driveshafts, but what about differences in wall thickness and are there different grades of aluminum used for different applications?
Aluminum driveshafts can handle some power but using some Crown Vic production shaft units for a racing shaft ??
Id want to know the grade of aluminum and thickness too. Id also feel more safe if they were production F 150 shafts. mike
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Re: Aluminum driveshaft, real world difference??
[Re: 408Dust]
#371230
07/09/09 09:45 PM
07/09/09 09:45 PM
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Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
70Cuda383
Too Many Posts
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Too Many Posts
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Posts: 21,345
Marysville, O-H-I-O
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my dakota is so long that I have a 2 piece shaft from the factory, and I HATE it! I think that's my weakest link right now and would love to toss in an aluminum shaft, but everyoen says no go
I don't really care if it ends up being made out of a solid steel rod! but everyone says it's too long and a 1 piece shaft cannot be made for it.
when I swapped in the 4.56s I noticed a driveshaft vibration now too...when the rear axle had 3.21s I would have had to drive 125mph to feel this vibration, but now the 4.56s and tire diameter change, my driveshaft speed is MUCH higher, and I can feel the vibration at 65mph.
what's the longest shaft anyone has ever used?
**Photobucket sucks**
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Re: Aluminum driveshaft, real world difference??
[Re: 70Cuda383]
#371231
07/09/09 10:04 PM
07/09/09 10:04 PM
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Joined: Jan 2003
Posts: 6,591
Canton, Ohio
Sport440
master
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master
Joined: Jan 2003
Posts: 6,591
Canton, Ohio
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Quote:
what's the longest shaft anyone has ever used?
The max length of the shaft will depend on RPM, Diameter and the strength of the material its made of.
Based on www.markwilliams.com , 60" is about tops for most race units for typical size shafts. mike
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Re: Aluminum driveshaft, real world difference??
[Re: 70Cuda383]
#371232
07/09/09 10:44 PM
07/09/09 10:44 PM
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Joined: Jan 2003
Posts: 2,567
Appalachia
RedRam
master
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master
Joined: Jan 2003
Posts: 2,567
Appalachia
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Quote:
my dakota is so long that I have a 2 piece shaft from the factory, and I HATE it! I think that's my weakest link right now and would love to toss in an aluminum shaft, but everyoen says no go
I don't really care if it ends up being made out of a solid steel rod! but everyone says it's too long and a 1 piece shaft cannot be made for it.
when I swapped in the 4.56s I noticed a driveshaft vibration now too...when the rear axle had 3.21s I would have had to drive 125mph to feel this vibration, but now the 4.56s and tire diameter change, my driveshaft speed is MUCH higher, and I can feel the vibration at 65mph.
what's the longest shaft anyone has ever used?
BTDT,
First trip to the track in my old LWB 85 D100 w/493 resulted in a tossed stock shaft.
Started calling around all the big name companies looking for a replacement. Once I told them it was for a LWB truck and it would be occasionally raced they said no deal
All sugested a 2pc or carbon.
I wanted a 1pc, name brand shop referred me to Dynatech in MI.
Called them up and they agreed to build me a MMC shaft that was 67.5" long w/1350 Ujoints. They warned me not to exceed the critical speed of 5900rpm(determined by the length), past that and I am on my own. Only ran 1/8th mile after that with that long shaft.
Switched to a SWB 87, had that shaft shortened to 49.5".
I have total confidence in my Dynatech MMC shaft.
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Re: Aluminum driveshaft, real world difference??
[Re: qwkmopardan]
#371234
07/09/09 10:59 PM
07/09/09 10:59 PM
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Joined: Jun 2003
Posts: 9,225
Charleston
sixpackgut
Drag Week Mod Champion
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Drag Week Mod Champion
Joined: Jun 2003
Posts: 9,225
Charleston
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Quote:
My Inland Empire aluminum D-shaft in the Demon has been in there since 1996. Same 1350 U-joints. 3000+ passes. On the 4th Ring and Pinion 3rd motor, 7th transmission, same driveshaft, just clean it and put it back in. Better knock on some wood.
that pretty much ends that debate. NEXT 
Gen 3 power 6.22@110, 9.85@135
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performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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Re: Aluminum driveshaft, real world difference??
[Re: sixpackgut]
#371235
07/09/09 11:11 PM
07/09/09 11:11 PM
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Joined: Jan 2003
Posts: 6,591
Canton, Ohio
Sport440
master
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master
Joined: Jan 2003
Posts: 6,591
Canton, Ohio
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Quote:
Quote:
My Inland Empire aluminum D-shaft in the Demon has been in there since 1996. Same 1350 U-joints. 3000+ passes. On the 4th Ring and Pinion 3rd motor, 7th transmission, same driveshaft, just clean it and put it back in. Better knock on some wood.
that pretty much ends that debate. NEXT
Wrong! Was his shaft a production leftover Crown Vic shaft??
I didnt feel this thread was a debate about aluminum shafts. 
But just thought it was about some leftover Crown Vic Aluminum shafts of Unknown diameter and grade.  mike 
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Re: Aluminum driveshaft, real world difference??
[Re: Sport440]
#371237
07/09/09 11:18 PM
07/09/09 11:18 PM
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Joined: Jun 2003
Posts: 9,225
Charleston
sixpackgut
Drag Week Mod Champion
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Drag Week Mod Champion
Joined: Jun 2003
Posts: 9,225
Charleston
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Quote:
Quote:
Quote:
My Inland Empire aluminum D-shaft in the Demon has been in there since 1996. Same 1350 U-joints. 3000+ passes. On the 4th Ring and Pinion 3rd motor, 7th transmission, same driveshaft, just clean it and put it back in. Better knock on some wood.
that pretty much ends that debate. NEXT
Wrong! Was his shaft a production leftover Crown Vic shaft??
I didnt feel this thread was a debate about aluminum shafts.
But just thought it was about some leftover Crown Vic Aluminum shafts of Unknown diameter and grade. mike
your right, i was just trying to be funny 
Gen 3 power 6.22@110, 9.85@135
Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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