Aluminum Driveshaft - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


General Miata Chat A place to talk about anything Miata

Reply
 
 
 
LinkBack Thread Tools
Old 10-27-2009, 02:03 AM   #1
Junior Member
Thread Starter
 
Join Date: Aug 2008
Location: Los Angeles, CA
Posts: 79
Total Cats: 0
Default Aluminum Driveshaft

I found out my driveshaft has a dying U-joint on my highly modded, tracked MSM. Unfortunately, I heard the U-joint on the OEM part isn't serviceable, so I'm looking at this as a chance to upgrade to a lighter, stronger unit.

I was given a quoted price in the $300 range from one place in Southern California that offers an aluminum piece with serviceable U-joints. Sounds enticing to me, but is there anything I should know before buying such a driveshaft like strength compared to an OEM MSM unit?
VagaXt is offline   Reply With Quote
Old 10-27-2009, 02:16 AM   #2
Boost Pope
iTrader: (8)
 
Joe Perez's Avatar
 
Join Date: Sep 2005
Location: Delicious and Moist.
Posts: 26,327
Total Cats: 1,926
Default

That's a more reasonable price than I'd have expected, actually.

I've heard of shops that will rebuild an OEM driveshaft (with serviceable joints) in the $200s, though I couldn't quote an exact price off the top of my head.

Something to consider, anyway. The stock unit is surprisingly lightweight.
Joe Perez is offline   Reply With Quote
Old 10-27-2009, 02:25 AM   #3
:(
iTrader: (7)
 
Join Date: Jul 2006
Location: nowhere
Posts: 8,281
Total Cats: 2
Default

stock unit weights like 10-15 lbs man i would take it out and make a few wiegh ins before you make your decission any 1.8 driveshaft will drop right in on your car so a new to you driveshaft can be had for as little as 50 bucks. something to consider imo.
magnamx-5 is offline   Reply With Quote
Old 10-27-2009, 02:37 AM   #4
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,199
Total Cats: 2,584
Default

Sounds badass, but honestly how much weight will you be saving? The stock one is VERY light last time I picked it up which is a few weeks ago. If you're rolling in cash go ahead and get the baller aluminum unit. If you're not I'd suggest a stock replacement.
18psi is offline   Reply With Quote
Old 10-27-2009, 02:41 AM   #5
Junior Member
Thread Starter
 
Join Date: Aug 2008
Location: Los Angeles, CA
Posts: 79
Total Cats: 0
Default

I know the stock unit's pretty light, but if the replacement is close to the price of the Al unit that's lighter and stronger, I'd say why not. However, I'm just concerned of the strength of an Al unit and to see if anyone's had experience with one.
VagaXt is offline   Reply With Quote
Old 10-27-2009, 02:48 AM   #6
Elite Member
iTrader: (1)
 
Join Date: May 2009
Location: Jacksonville, FL
Posts: 4,685
Total Cats: 216
Default



only 800 bucks, haha
Full_Tilt_Boogie is offline   Reply With Quote
Old 10-27-2009, 02:51 AM   #7
Trackspeed Engineering
iTrader: (9)
 
Join Date: Jan 2008
Location: Bay Area, California
Posts: 937
Total Cats: 10
Default

Never seen aluminum driveshaft failure on a Miata, but it happens quite often on other high power modified cars.





I would just replace it with another OEM one.
crashnscar is offline   Reply With Quote
Old 10-27-2009, 03:02 AM   #8
Junior Member
Thread Starter
 
Join Date: Aug 2008
Location: Los Angeles, CA
Posts: 79
Total Cats: 0
Default

I'm aware of the CF one. Baller piece indeed, but I'll save that for a more crazy build in the future.


Quote:
Originally Posted by crashnscar View Post
Never seen aluminum driveshaft failure on a Miata, but it happens quite often on other high power modified cars.





I would just replace it with another OEM one.
Yikes, that looks like that happened at AAA Auto Club Speedway (Fontana, CA), based on the garage the car's in. I can see that happening there on a high HP car.
VagaXt is offline   Reply With Quote
Old 10-27-2009, 03:05 AM   #9
Boost Pope
iTrader: (8)
 
Joe Perez's Avatar
 
Join Date: Sep 2005
Location: Delicious and Moist.
Posts: 26,327
Total Cats: 1,926
Default

Quote:
Originally Posted by magnamx-5 View Post
stock unit weights like 10-15 lbs
Having never actually weighed one, I'd still say that the stock 1.8 unit is less than 10 lbs. You can easily pick it up and swing it around with two fingers.

Quote:
Originally Posted by VagaXt View Post
However, I'm just concerned of the strength of an Al unit and to see if anyone's had experience with one.
Well, for the reason that Magna points out (good junkyard units are cheap as hell) I'm guessing that there aren't a lot of folks who can actually weigh in here (pun intended) with first-hand experience. Searching turns up nothing...

On the other hand, if someone had experienced a failure with an aluminum unit, I'm sure we'd have heard about it.

On the gripping hand, here is a brand-new steel unit for $197: Car Part Wholesale - Auto Parts and Accessories Catalog - Powertrain Driveshaft For 2004 Mazda Miata
Joe Perez is offline   Reply With Quote
Old 10-27-2009, 10:26 AM   #10
Elite Member
iTrader: (2)
 
miata2fast's Avatar
 
Join Date: Aug 2009
Location: Dover, FL
Posts: 2,901
Total Cats: 109
Default

There are other reasons to go with aluminum driveshafts. The harmonics are softer, and that puts a little less stress on the drivetrain.
miata2fast is offline   Reply With Quote
Old 10-27-2009, 11:03 AM   #11
Ben
Supporting Vendor
iTrader: (33)
 
Ben's Avatar
 
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,689
Total Cats: 99
Default

The MSM driveshaft has replaceable joints. So just replace the joint and be done.

Or replace it with a non-MSM driveshaft. They interchange. The non-MSM shaft does not have user servicable joints (though not intended by mazda, you still can replace u-joints with some work).
Ben is offline   Reply With Quote
Old 10-27-2009, 11:06 AM   #12
Senior Member
iTrader: (5)
 
Join Date: Jan 2008
Location: Central, TX / Bay area, CA
Posts: 1,272
Total Cats: 3
Default

There are to many variables to say yes the Aluminum shaft is stronger or not, It depends on the type of Aluminum and wall thickness. It could be stronger or, they could make it out of old soda cans and it would not be stronger. Ask the shop that is making it. I know the shop in my area wont make a shaft unless its stronger than the one its replacing.
Gotpsi? is offline   Reply With Quote
Old 10-27-2009, 11:07 AM   #13
Elite Member
iTrader: (1)
 
NA6C-Guy's Avatar
 
Join Date: Feb 2008
Location: Birmingham Alabama
Posts: 8,038
Total Cats: 43
Default

Stock unit IS surprisingly light. Every time I have gone to pick one up I have put way too much *** into expecting it to be 25-30lbs, then I find it weighs probably less than a gallon of milk. One of those parts that just weigh much less than they look like they would.
NA6C-Guy is offline   Reply With Quote
Old 10-27-2009, 11:38 AM   #14
meatbag
iTrader: (50)
 
gospeed81's Avatar
 
Join Date: Nov 2008
Location: Houston, TX
Posts: 7,357
Total Cats: 26
Default

Quote:
Originally Posted by NA6C-Guy View Post
Stock unit IS surprisingly light. Every time I have gone to pick one up I have put way too much *** into expecting it to be 25-30lbs, then I find it weighs probably less than a gallon of milk. One of those parts that just weigh much less than they look like they would.
Just for reference...a gallon of milk is just over 8lbs.
gospeed81 is offline   Reply With Quote
Old 10-27-2009, 11:49 AM   #15
Ben
Supporting Vendor
iTrader: (33)
 
Ben's Avatar
 
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,689
Total Cats: 99
Default

IIRC standard 1.8 shaft is 11lbs and MSM shaft is 14lbs
Ben is offline   Reply With Quote
Old 10-27-2009, 11:55 AM   #16
Elite Member
iTrader: (12)
 
Join Date: Aug 2006
Location: Central-ish VA
Posts: 4,449
Total Cats: 16
Default

I was under the impression that the stock unit is Al. The whole point of this thread for vagaxt is the fact that this new one would have servicable, removable?, u-joints.
neogenesis2004 is offline   Reply With Quote
Old 10-27-2009, 11:57 AM   #17
Ben
Supporting Vendor
iTrader: (33)
 
Ben's Avatar
 
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,689
Total Cats: 99
Default

I'm pretty sure it's steel.

The whole point of the thread is he already has serviceable joints.
Ben is offline   Reply With Quote
Old 10-27-2009, 12:16 PM   #18
Elite Member
iTrader: (12)
 
Join Date: Aug 2006
Location: Central-ish VA
Posts: 4,449
Total Cats: 16
Default

I'm lost...whatever.
neogenesis2004 is offline   Reply With Quote
Old 10-27-2009, 12:52 PM   #19
Tour de Franzia
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

is this the one that will not impale you?
hustler is offline   Reply With Quote
Old 10-27-2009, 01:20 PM   #20
Boost Pope
iTrader: (8)
 
Joe Perez's Avatar
 
Join Date: Sep 2005
Location: Delicious and Moist.
Posts: 26,327
Total Cats: 1,926
Default

Quote:
Originally Posted by hustler View Post
is this the one that will not impale you?
For you, I'd think that would be considered a desirable trait?
Joe Perez is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
OTS Bilstein to motorsports ASN conversion stoves Suspension, Brakes, Drivetrain 5 04-21-2016 04:00 PM
ACT race clutch and AASCO 7lb. aluminum flywheel graexodus Miata parts for sale/trade 5 10-26-2015 02:48 PM
FS/FT: 03.5 Mazdaspeed Protege leatherface24 Cars for sale/trade 15 10-16-2015 12:35 PM
Moroso Air Oil Separator Catch Can Aroundcorner Miata parts for sale/trade 2 10-01-2015 04:20 PM
Stripped clutch slave bell housing threads. EricJ Suspension, Brakes, Drivetrain 6 09-13-2015 10:44 PM


Tags
aluminum driveshaft

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 04:27 AM.