home register FAQ memberlist calendar

Go Back   Turbobricks Forums > Mechanical > maintenance & nonperformance

Reply
 
Thread Tools Display Modes
Old 09-04-2008, 07:25 PM   #1
Patdon10
Board Member
 
Patdon10's Avatar
 
Join Date: Oct 2007
Location: Fairfax, Virginia
Default M46 = m47 driveshaft?

I have an AWful70 installed in my car, and I plan on converting to an M47.

I was going to try to find the front half of the drive shaft from a 240, but if I can't find one, can I pull one that has an m46?
__________________
The 245 Restoration.
http://forums.turbobricks.com/showthread.php?t=132952

Buyer/Seller Feedback
http://forums.turbobricks.com/showth...light=Patdon10


Quote:
Originally Posted by adrianpike View Post
You cannot reduce a Volvo's value, as they're already worthless.
Patdon10 is offline   Reply With Quote
Old 09-04-2008, 07:27 PM   #2
wildmanben
Board Member
 
wildmanben's Avatar
 
Join Date: Jan 2003
Location: Atlanta, GA
Default

I think the answer is no, but I'll let someone else tell you for sure.

Edit: not even all of the 240's with M46's have front half driveshafts that are compatible with other 240's with M46's, so for at least some 240s the answer is definitely no.
__________________
Project: 1983 244, B23F+T, 10.3:1, 15 psi, A cam, MSnS-E
Company: Southern Dynamics Consulting. We specialize in data analysis, instrumentation, and monitoring solutions for heavy machinery.
wildmanben is offline   Reply With Quote
Old 09-04-2008, 07:29 PM   #3
Patdon10
Board Member
 
Patdon10's Avatar
 
Join Date: Oct 2007
Location: Fairfax, Virginia
Default

is this because of a length issue or a yoke issue?
Patdon10 is offline   Reply With Quote
Old 09-04-2008, 07:31 PM   #4
fredsanford740t
Board Member
 
fredsanford740t's Avatar
 
Join Date: Oct 2005
Location: Chapel Hill North Carolina
Default

Quote:
Originally Posted by Patdon10 View Post
I have an AWful70 installed in my car, and I plan on converting to an M47.

I was going to try to find the front half of the drive shaft from a 240, but if I can't find one, can I pull one that has an m46?
I think the front half of the d/s may be shorter for the M46 due to the overdrive (5th gear) box. The 47 does away with the latter part of the o/d and incorporates 5 true gears.

To be safe just find a complete donor car with all the parts you need and you will have the correct d/s.
__________________
Anamorphic Equalizer_ Line-Xesque paint_ M47_ Auto Meter A/F Ratio, Boost, temp_ Tethys_ Racing seats _ GT steering wheel_ 2.5" drop_ 242 GT intake tube_ Python 871XP_ Rebuilt, ported, 10* clipped 42/48 trim Garret_ ported/milled 90+ manifold_ 3" V-band Turbine outlet_ Porsche BOV_ Ported, polished, grooved 530 head_ Stage 3 Clutch_ 20lb. Flywheel

fredsanford740t is offline   Reply With Quote
Old 09-04-2008, 07:52 PM   #5
Tick
ASSFACEHOLE
 
Tick's Avatar
 
Join Date: Oct 2005
Location: Atascadero, CA
Default

You can use the rear section of the m46 shaft but you'll need an m47 front half.
__________________
67' 220
84' Honda sabre v65
85' Ford Econoline E350 Box Van
90' 740 16v
90' 740 turbo (parts)
00' xc70

Quote:
Originally Posted by Disco Inferno View Post
**** you, filthy ****ing non-smoker. I hate your type, and when I see you coming I intentionally exhale strongly in your direction.
Tick is offline   Reply With Quote
Old 09-04-2008, 07:55 PM   #6
Karl Buchka
Board Member
 
Join Date: Mar 2007
Location: Los Angeles
Default

The M47s I've pulled out of 240s have all had guibos between the tranny and the driveshaft, whereas every M46 I've pulled has been a direct bolt on deal.

You're probably going to need an M47 specific front half.
Karl Buchka is offline   Reply With Quote
Old 09-04-2008, 08:29 PM   #7
500dollar744ti
still rides with MrDoug
 
500dollar744ti's Avatar
 
Join Date: Feb 2007
Location: Falls Church, VA
Default

Quote:
Originally Posted by Karl Buchka View Post
The M47s I've pulled out of 240s have all had guibos between the tranny and the driveshaft, whereas every M46 I've pulled has been a direct bolt on deal.

You're probably going to need an M47 specific front half.
later m46's have guibos as well, like 1985+ or something, well at least on 740's... either way the front part of the driveshaft is diff than the m46 and the shifter cage is different.
__________________
-Matt

1989 Volvo 744T- 16v turbo, '94 FD-block, RSI pistons/rods, GT35R, Tial 38mm, RFL, MSnS-E, DSM spark, 100lb Delphis, 4.6 springs, Bondo header, Heebspeed intake, Q45 90mm TB, Bosch 044 FP, 12x24x3 ebayIC, w/c t5, Clutchnet 4puck/PP, 4.10 G80, IPD sways, 960 brakes.
1998 Volvo S70 T5m- Stock, 229k
1998 Jeep Cherokee XJ- Stock, 154k
1983 Ford F150- '89 5.0 H.O, C6/4x4, F+R LSD 4.10, 7" lift, 35s.
1990 Cobia San Marino 225 ECS- MCM 350 Mag, GM Bowtie Intake, HR-Titan 19p.
500dollar744ti is offline   Reply With Quote
Old 09-04-2008, 10:50 PM   #8
dl242gt
Old and boxy but good.
 
dl242gt's Avatar
 
Join Date: Jun 2002
Location: S NJ, a suburb of Phila.
Default

You could get by with only getting the front section for the M47 driveshaft. But it would be more ideal if you got the complete M47 driveshaft. That's because the rear half of an M46 and the automatic driveshaft has a rubber insert and is a pressed together back half section. The back half of an M47 driveshaft is solid with the rubber guibo joint up by the transmission doing the job of absorbing driveline shock.
__________________
Dave,
1982 242 turbo. 338k miles. MVP coilovers and 3" exhaust. Flowed 405 with a V15. Cossie turbine housing with upgraded compressor housing. 90+, IPD remote oil filter. Some other goodness, too. Been lots of fun over 25 years. Restored in 2k. Now ready for a 2nd restoration.

1993 245 Classic, 440k miles, enem V15. IPD bars and chassis braces. Simons sport exhaust from Scandix. sbabbs ezk chip. Been a good road warrior. Genuine Volvo rebuilt leaky M47.
dl242gt is offline   Reply With Quote
Old 09-05-2008, 08:36 AM   #9
wildmanben
Board Member
 
wildmanben's Avatar
 
Join Date: Jan 2003
Location: Atlanta, GA
Default

Quote:
Originally Posted by Patdon10 View Post
is this because of a length issue or a yoke issue?
The flange was the problem, not only was the bolt pattern different but the flange wasn't the right thickness, which made the driveshaft the wrong length. We ended up putting a different flange on the transmission to fit the driveshaft.
wildmanben is offline   Reply With Quote
Old 09-05-2008, 08:42 PM   #10
Kjets On a Plane
Board Member
 
Kjets On a Plane's Avatar
 
Join Date: Nov 2002
Location: Californicated Oregone
Default

Quote:
Originally Posted by 500dollar744ti View Post
later m46's have guibos as well, like 1985+ or something, well at least on 740's... either way the front part of the driveshaft is diff than the m46 and the shifter cage is different.
No guibos on 240 M46s, even 86 cars, interestingly.

Interestingly, 84-86 740/760 with J-type overdrive have a plug and the speedo gear already installed in the tailhousing. You can remove the plug and install the speedo cable fitting/worm gear from a 240, but 86 240s have no plug and an undrilled boss in the tailhousing for the cable speedo. Makes things interesting when putting an 86 240 M46 in a 78 car having to update the reverse and OD wiring and put a different tailhousing and gear on it. Managed to get the job done in 6 hours, but it was a bit of a learning experience and involved pressing a couple bearings and swapping a tailhousing. I knew about the reverse lamp change, circular flange diameter change for the small driveshaft, and 4th gear switch/shifter bracketry changes going in and knew that would add some time, but the undrilled boss for the speedo cable on a J-type OD was a new one.

You should get the whole driveshaft form an M47 240 for an M47 240 honestly. The parts and u-joints will match, you get the stronger 2.5" rear section on the late model cars, and it just fits. In a pinch, the large diameter rear half from an M46 car can be used and still use the same support bearing if you gotta ship one i guess.
__________________
How PSI a stock can support?
Always Be Crushing!

Quote:
Originally Posted by JohnMc View Post
If you send me $20$14.99, I'll send you a how-to explaining how to make $20$14.99 from people on the internet.
Kjets On a Plane is offline   Reply With Quote
Old 03-11-2022, 05:30 PM   #11
Old Iron
I Roll
 
Old Iron's Avatar
 
Join Date: Jun 2009
Location: Dela-Where?
Default

Curious to know if I can use the back half of an aw70 driveshaft with the front half of an m47 driveshaft for my m47 swap. Will it cause any vibration issues or noises? Are they the same between both setups?

Old thread recycling.
__________________
Turbobricked


Quote:
Originally Posted by Anonymous View Post
No sarcastic replies from Redwood Chair necessary
Old Iron is offline   Reply With Quote
Old 03-11-2022, 07:01 PM   #12
esmth
Board Member
 
Join Date: Jul 2016
Location: MA/NH
Default

I'm using the back half of an aw70 driveshaft with an m46 front shaft. No perceptible vibration difference for my mix-n-match. At least for M46 the rear shaft has the rubber damper, where the aw70 shaft didn't. I think for the m47 the giubo takes over that job. I would think they would work together but cannot confirm.
__________________
1991 244 LH3.1 M46 393k miles
esmth is offline   Reply With Quote
Old 03-12-2022, 01:11 PM   #13
white855T
Board Member
 
Join Date: Sep 2013
Location: Dallas,TX
Default

Quote:
Originally Posted by Old Iron View Post
Curious to know if I can use the back half of an aw70 driveshaft with the front half of an m47 driveshaft for my m47 swap. Will it cause any vibration issues or noises? Are they the same between both setups?

Old thread recycling.
You can do it but won't know if you have vibrations till you install it. But it's much better to just get the 2 pieces.
white855T is offline   Reply With Quote
Old 03-16-2022, 06:59 AM   #14
Otto Mattik
board member
 
Otto Mattik's Avatar
 
Join Date: Dec 2015
Location: Upper Midwest more or less
Default

Quote:
Originally Posted by white855T View Post
You can do it but won't know if you have vibrations till you install it. But it's much better to just get the 2 pieces.
On my old 92 m47, the rear DS section is larger in diameter(I can measure if someone needs the diameter).


__________________
Desperate need of elf assistant for interior work - Cash/Beer option $


Feedback thread: http://forums.turbobricks.com/showthread.php?t=323689
Otto Mattik is offline   Reply With Quote
Reply

Thread Tools
Display Modes

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 On

Forum Jump


All times are GMT -4. The time now is 12:13 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, vBulletin Solutions Inc.