drive shaft removal for FWD?

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mhmarcherman@yahoo.com

drive shaft removal for FWD?

Post by mhmarcherman@yahoo.com »

Can I remove the drive shaft from my 1990 4wd legacy and drive it as
a front wheel drive auto? I'm planning some long road trips that will
see only southern highway miles and I'd like to be able to squeeze a
few more mpg out of the car - I won't need the 4wd at all. Can I just
remove the shaft and drive like that or do I need to do anything to
the trans output that leads towards the rear diff? What type of mpg
increase can I expect?
Thanks,
Marc


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INCEv@webtv.net

drive shaft removal for FWD?

Post by INCEv@webtv.net »

Do you fave a 4WD plug on the passenger side shock tower? Dan
(Southwestern,WA{Brooklyn})


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mhmarcherman@yahoo.com

drive shaft removal for FWD?

Post by mhmarcherman@yahoo.com »

I forgot to mention - it's a manual transmission so there's no fuse.

--- In BC-BFLegacyWorks@y..., INCEv@w... wrote:
> Do you fave a 4WD plug on the passenger side shock tower? Dan
> (Southwestern,WA{Brooklyn})


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Dave C

drive shaft removal for FWD?

Post by Dave C »

Well, in all the multitude of information i've seen on this board, i
can't say i've ever seen anyone ask this question.

Technically, yes, you should be able to convert it to FWD by
removing the rear shaft, but i see two possible problems.

1: What is the center differential going to think? Will it simply
transfer all power to the front, all the time?

2. If #1 is correct, what effect will this have on the life of the
differential?

Unless you have the facilities to remove the part and replace it, i
can't see it being cheaper to remove and install than to just drive
it. Honestly, gas is really, really cheap right now...

One word of advice, go to the i-club and do a search to see if
anyone has done this before.

--- In BC-BFLegacyWorks@y..., mhmarcherman@y... wrote:
> Can I remove the drive shaft from my 1990 4wd legacy and
drive it as
> a front wheel drive auto? I'm planning some long road trips that
will
> see only southern highway miles and I'd like to be able to
squeeze a
> few more mpg out of the car - I won't need the 4wd at all. Can I
just
> remove the shaft and drive like that or do I need to do anything
to
> the trans output that leads towards the rear diff? What type of
mpg
> increase can I expect?
> Thanks,
> Marc


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jason grahn

drive shaft removal for FWD?

Post by jason grahn »

>Technically, yes, you should be able to convert it to FWD by
>removing the rear shaft, but i see two possible problems.
>

Something else to thing about, if you pull out your drive shaft to the rear,
then all your tranny fluid will go out the back end.

>One word of advice, go to the i-club and do a search to see if
>anyone has done this before.

And as great as a board as i-club is (and i'm gunna smack myself for saying
this publicly, so i'm going to say it as PC as possible), it's full of
seriously UN-informed people. ANYTHING that i read on that board i take with
a grain of salt. Probably 1 in 200 people on that board are actually fit to
do any sort of serious modification to their car. The other problem with
that, is that 1 in 200 person doesn't post to the board because they know if
they post an intelligent thought it'll just get shot down by the 199 morons
that outnumber him/her.

Do some research yourself, look around the net, call some subaru
technitians.

-Jason

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Gary Grahn

drive shaft removal for FWD?

Post by Gary Grahn »

I do not believe that you can drive with only the rear drive shaft disconnected to make a WWD. I am almost posistive you will need some internal transmission work to make this work correctly.

And in the end, it all works out the same... You aren't driving four wheels... just lugging around all that extra weight. Ask my bother how to get good gasmileage.. he lives for it :)

-----Original Message-----
From: Dave C [mailto:legacycentral@yahoo.com]
Sent: Monday, November 05, 2001 10:25 AM
To: BC-BFLegacyWorks@yahoogroups.com
Subject: [BC-BFLegacyWorks] Re: drive shaft removal for FWD?


Well, in all the multitude of information i've seen on this board, i
can't say i've ever seen anyone ask this question.

Technically, yes, you should be able to convert it to FWD by
removing the rear shaft, but i see two possible problems.

1: What is the center differential going to think? Will it simply
transfer all power to the front, all the time?

2. If #1 is correct, what effect will this have on the life of the
differential?

Unless you have the facilities to remove the part and replace it, i
can't see it being cheaper to remove and install than to just drive
it. Honestly, gas is really, really cheap right now...

One word of advice, go to the i-club and do a search to see if
anyone has done this before.

--- In BC-BFLegacyWorks@y..., mhmarcherman@y... wrote:
> Can I remove the drive shaft from my 1990 4wd legacy and
drive it as
> a front wheel drive auto? I'm planning some long road trips that
will
> see only southern highway miles and I'd like to be able to
squeeze a
> few more mpg out of the car - I won't need the 4wd at all. Can I
just
> remove the shaft and drive like that or do I need to do anything
to
> the trans output that leads towards the rear diff? What type of
mpg
> increase can I expect?
> Thanks,
> Marc


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Daniel Wilson

drive shaft removal for FWD?

Post by Daniel Wilson »

No unless you have a diff lock fuse under the bonnet, you will not be
going anywhere in a hurry by taking the drive shaft out.

Dan

--- In BC-BFLegacyWorks@y..., mhmarcherman@y... wrote:
> Can I remove the drive shaft from my 1990 4wd legacy and drive it
as
> a front wheel drive auto? I'm planning some long road trips that
will
> see only southern highway miles and I'd like to be able to squeeze
a
> few more mpg out of the car - I won't need the 4wd at all. Can I
just
> remove the shaft and drive like that or do I need to do anything to
> the trans output that leads towards the rear diff? What type of mpg
> increase can I expect?
> Thanks,
> Marc


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Daniel Wilson

drive shaft removal for FWD?

Post by Daniel Wilson »

Glad some one actually knows what they are talking about I have
posted some pics in the photo section what is required to make your
Subaru FWD or RWD, which we have actually done on a number of Subarus
making them rear wheel drive. The only other way is with the auto
trans vehicles with the diff lock.

What does the centre diff do? It slips to transfer the power to the
front or the rear if you remove the drive shafts the AWD will be
slipping the centre diff which will absolutley screw it plus you
would only get a maxiumum of 30% power to the front wheels, actaully
requiring more power and fuel consumption to keep the same speed.

Dan


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Josh Colombo

drive shaft removal for FWD?

Post by Josh Colombo »

Personally I wouldn't even think of doing this.

But to answer your question, you are really not going to get much better mileage, because the center diff and drive shaft and such are all spinning too. Plus you'd probably end up frying the center diff.

-----Original Message-----
From: mhmarcherman@yahoo.com
Sent: Mon 11/5/2001 11:56 AM
To: BC-BFLegacyWorks@yahoogroups.com
Cc:
Subject: [BC-BFLegacyWorks] drive shaft removal for FWD?



Can I remove the drive shaft from my 1990 4wd legacy and drive it as
a front wheel drive auto? I'm planning some long road trips that will
see only southern highway miles and I'd like to be able to squeeze a
few more mpg out of the car - I won't need the 4wd at all. Can I just
remove the shaft and drive like that or do I need to do anything to
the trans output that leads towards the rear diff? What type of mpg
increase can I expect?
Thanks,
Marc


To unsubscribe from this group, please send an email to:
BC-BFLegacyWorks-unsubscribe@egroups.com



Josh Colombo

drive shaft removal for FWD?

Post by Josh Colombo »

Ditto what jason said about i-club. I've posted stuff on there, and I either get no response and in one day it's burried by tons of useless crap posts.

-----Original Message-----
From: jason grahn
Sent: Mon 11/5/2001 12:56 PM
To: BC-BFLegacyWorks@yahoogroups.com
Cc:
Subject: Re: [BC-BFLegacyWorks] Re: drive shaft removal for FWD?



>Technically, yes, you should be able to convert it to FWD by
>removing the rear shaft, but i see two possible problems.
>

Something else to thing about, if you pull out your drive shaft to the rear,
then all your tranny fluid will go out the back end.

>One word of advice, go to the i-club and do a search to see if
>anyone has done this before.

And as great as a board as i-club is (and i'm gunna smack myself for saying
this publicly, so i'm going to say it as PC as possible), it's full of
seriously UN-informed people. ANYTHING that i read on that board i take with
a grain of salt. Probably 1 in 200 people on that board are actually fit to
do any sort of serious modification to their car. The other problem with
that, is that 1 in 200 person doesn't post to the board because they know if
they post an intelligent thought it'll just get shot down by the 199 morons
that outnumber him/her.

Do some research yourself, look around the net, call some subaru
technitians.

-Jason

_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp


To unsubscribe from this group, please send an email to:
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D. Doug Mallow

drive shaft removal for FWD?

Post by D. Doug Mallow »

If your car has the FWD switch, just put the fuse in and drive on. A transmission mechanic checked it out and said as long as you drive it occasioinally in 4 WD mode, it's fine. The central diff. on automatics is just a electric clutch, it's either on or off.


Oh by the way, I drove my 93 Legacy to VA Beach fm Atlanta, got over 29 mpg on one tankful.





Josh Colombo <jcc189@psu.edu> wrote:


Personally I wouldn't even think of doing this.

But to answer your question, you are really not going to get much better
mileage, because the center diff and drive shaft and such are all
spinning too. Plus you'd probably end up frying the center diff.

-----Original Message-----
From: mhmarcherman@yahoo.com
Sent: Mon 11/5/2001 11:56 AM
To: BC-BFLegacyWorks@yahoogroups.com
Cc:
Subject: [BC-BFLegacyWorks] drive shaft removal for FWD?



Can I remove the drive shaft from my 1990 4wd legacy and drive
it as
a front wheel driv! e auto? I'm planning some long road trips that
will
see only southern highway miles and I'd like to be able to
squeeze a
few more mpg out of the car - I won't need the 4wd at all. Can I
just
remove the shaft and drive like that or do I need to do anything
to
the trans output that leads towards the rear diff? What type of
mpg
increase can I expect?
Thanks,
Marc


To unsubscribe from this group, please send an email to:
BC-BFLegacyWorks-unsubscribe@egroups.com



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acroxford@hypermall.net

drive shaft removal for FWD?

Post by acroxford@hypermall.net »

I will have to agree with Josh on this not being a very good idea. One
other thing to keep in mind for the AWD to FWD cars is that they
can become a completly different car as far as handling goes and they
can even be a bit nasty in the slick stuff.
AL(CO)



--- In BC-BFLegacyWorks@y..., "D. Doug Mallow" <ddmallow@y...> wrote:
>
> If your car has the FWD switch, just put the fuse in and drive on.
A transmission mechanic checked it out and said as long as you drive
it occasioinally in 4 WD mode, it's fine. The central diff. on
automatics is just a electric clutch, it's either on or off.
> Oh by the way, I drove my 93 Legacy to VA Beach fm Atlanta, got over
29 mpg on one tankful.
>
> Josh Colombo <jcc189@p...> wrote: Personally I wouldn't even think
of doing this.
>
> But to answer your question, you are really not going to get much
better
> mileage, because the center diff and drive shaft and such are all
> spinning too. Plus you'd probably end up frying the center diff.
>
> -----Original Message-----
> From: mhmarcherman@y...
> Sent: Mon 11/5/2001 11:56 AM
> To: BC-BFLegacyWorks@y...
> Cc:
> Subject: [BC-BFLegacyWorks] drive shaft removal for FWD?
>
>
>
> Can I remove the drive shaft from my 1990 4wd legacy and drive
> it as
> a front wheel drive auto? I'm planning some long road trips
that
> will
> see only southern highway miles and I'd like to be able to
> squeeze a
> few more mpg out of the car - I won't need the 4wd at all. Can
I
> just
> remove the shaft and drive like that or do I need to do
anything
> to
> the trans output that leads towards the rear diff? What type
of
> mpg
> increase can I expect?
> Thanks,
> Marc
>
>
> To unsubscribe from this group, please send an email to:
> BC-BFLegacyWorks-unsubscribe@egroups.com
>
>
>
> Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
>
>
>
>
>
>
>
> ADVERTISEMENT
>
> To unsubscribe from this group, please send an email to:
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>
>
>
> zZz.
> > ATTACHMENT part 2 application/ms-tnef name=winmail.dat
>
>
> ---------------------------------
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D. Doug Mallow

drive shaft removal for FWD?

Post by D. Doug Mallow »

It is true that the car reacts differently in FWD as opposed to 4 WD but there are lots of FWD cars out there that seem to function ok, you just don't have the advantage of 4 WD.


I actually have been thinking about putting a switch in the switch line and running it in the car to so as to have AWD on demand... not just all the time.


I'm not sure how the center diff. would fry by not being engaged, as Spock would say, it isn't logical. And while it is true the drive shaft and rear diff are still turning, the engine is not being taxed (just like the reason you get better mileage when the A/C is off than on, the weight is the same and the pully is still turning).


I would love to hear other views on this. I guess I will be a test bed for now.


acroxford@hypermall.net wrote:


I will have to agree with Josh on this not being a very good idea. One
other thing to keep in mind for the AWD to FWD cars is that they
can become a completly different car as far as handling goes and they
can even be a bit nasty in the slick stuff.
AL(CO)



--- In BC-BFLegacyWorks@y..., "D. Doug Mallow" <ddmallow@y...> wrote:
>
> If your car has the FWD switch, just put the fuse in and drive on.
A transmission mechanic checked it out and said as long as you drive
it occasioinally in 4 WD mode, it's fine. The central diff. on
automatics is just a electric clutch, it's either on or off.
> Oh by the way, I drove my 93 Legacy to VA Beach fm Atlanta, got over
29 mpg on one tankful.
>
> Josh Colombo <jcc189@p...> wrote: Personally I wouldn't even think
of doi! ng this.
>
> But to answer your question, you are really not going to get much
better
> mileage, because the center diff and drive shaft and such are all
> spinning too. Plus you'd probably end up frying the center diff.
>
> -----Original Message-----
> From: mhmarcherman@y...
> Sent: Mon 11/5/2001 11:56 AM
> To: BC-BFLegacyWorks@y...
> Cc:
> Subject: [BC-BFLegacyWorks] drive shaft removal for FWD?
>
>
>
> Can I remove the drive shaft from my 1990 4wd legacy and drive
> it as
> a front wheel drive auto? ! I'm planning some long road trips
that
> will
> see only southern highway miles and I'd like to be able to
> squeeze a
> few more mpg out of the car - I won't need the 4wd at all. Can
I
> just
> remove the shaft and drive like that or do I need to do
anything
> to
> the trans output that leads towards the rear diff? What type
of
> mpg
> increase can I expect?
> Thanks,
> Marc
>
>
> To unsubscribe from this group, please send an email to:
> BC-BFLegacyWorks-unsubscribe@egroups.! com
>
>
>
> Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
>
>
>
>
>
>
>
> ADVERTISEMENT
>
> To unsubscribe from this group, please send an email to:
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>
>
>
> zZz.
> > ATTACHMENT part 2 application/ms-tnef name=winmail.dat
>
>
> ---------------------------------
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Josh Colombo

drive shaft removal for FWD?

Post by Josh Colombo »

You have to look at two main things. Auto vs. Manual tranny. In an auto you can use the FWD fuse and it's no big deal the tranny just takes away line pressure to the rear. However you aren't going to really get alot better fuel mileage. The auto tranny legacy's normally run 90/10 split. So normally you are getting 90% power to front. So an additional 10% to front when fuse is in, is not going to give you any better mileage.

As for manual transmission. That just plain will not work. The center diff, the way it works it senses change in rotation between the front and rear drive shafts. If they are the same, the split is 50/50. When the front or rear starts to slip, it spins faster. The center diff wants the other one to catch up, hence transfers power. Let's say you take the drive shaft out. You would then have no rotation in the rear, and rotation in the front. It would want to transfer power to the back, when there is nothing there, it will just fry the viscous center diff.

So in summary. This is NOT a viable option to get better mileage or more power. I have a FWD legacy, and yah I do probably get a little better mileage, but I would rather have AWD, trust me, the safety and performance, far outweighs what little you save in gas.



************************************
Josh Colombo
jcc189@psu.edu

"Life, an ever-changing melody
of beats and rhythm" - ME
************************************

-----Original Message-----
From: D. Doug Mallow [mailto:ddmallow@yahoo.com]
Sent: Sunday, November 11, 2001 66 PM
To: BC-BFLegacyWorks@yahoogroups.com
Subject: Re: [BC-BFLegacyWorks] Re: drive shaft removal for FWD?



It is true that the car reacts differently in FWD as opposed to 4 WD but there are lots of FWD cars out there that seem to function ok, you just don't have the advantage of 4 WD.


I actually have been thinking about putting a switch in the switch line and running it in the car to so as to have AWD on demand... not just all the time.


I'm not sure how the center diff. would fry by not being engaged, as Spock would say, it isn't logical. And while it is true the drive shaft and rear diff are still turning, the engine is not being taxed (just like the reason you get better mileage when the A/C is off than on, the weight is the same and the pully is still turning).


I would love to hear other views on this. I guess I will be a test bed for now.


acroxford@hypermall.net wrote:


I will have to agree with Josh on this not being a very good idea. One
other thing to keep in mind for the AWD to FWD cars is that they
can become a completly different car as far as handling goes and they
can even be a bit nasty in the slick stuff.
AL(CO)



--- In BC-BFLegacyWorks@y..., "D. Doug Mallow" <ddmallow@y...> wrote:
>
> If your car has the FWD switch, just put the fuse in and drive on.
A transmission mechanic checked it out and said as long as you drive
it occasioinally in 4 WD mode, it's fine. The central diff. on
automatics is just a electric clutch, it's either on or off.
> Oh by the way, I drove my 93 Legacy to VA Beach fm Atlanta, got over
29 mpg on one tankful.
>
> Josh Colombo <jcc189@p...> wrote: Personally I wouldn't even think
of doi! ng this.
>
> But to answer your question, you are really not going to get much
better
> mileage, because the center diff and drive shaft and such are all
> spinning too. Plus you'd probably end up frying the center diff.
>
> -----Original Message-----
> From: mhmarcherman@y...
> Sent: Mon 11/5/2001 11:56 AM
> To: BC-BFLegacyWorks@y...
> Cc:
> Subject: [BC-BFLegacyWorks] drive shaft removal for FWD?
>
>
>
> Can I remove the drive shaft from my 1990 4wd legacy and drive
> it as
> a front wheel drive auto? ! I'm planning some long road trips
that
> will
> see only southern highway miles and I'd like to be able to
> squeeze a
> few more mpg out of the car - I won't need the 4wd at all. Can
I
> just
> remove the shaft and drive like that or do I need to do
anything
> to
> the trans output that leads towards the rear diff? What type
of
> mpg
> increase can I expect?
> Thanks,
> Marc
>
>
> To unsubscribe from this group, please send an email to:
> BC-BFLegacyWorks-unsubscribe@egroups.! com
>
>
>
> Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
>
>
>
>
>
>
>
> ADVERTISEMENT
>
> To unsubscribe from this group, please send an email to:
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>
>
>
> zZz.
> > ATTACHMENT part 2 application/ms-tnef name=winmail.dat
>
>
> ---------------------------------
> Do You Yahoo!?
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