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MentaL_FLoss
Samba Member
Joined: July 17, 2014
Posts: 10
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 Posted: Wed Sep 03, 2014 4:54 am Post subject: transaxle |
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| I guess I'm missing the post about this, so I will just ask here and see if I can get a re-direct. I want to switch out the transaxle from single drive to 2 wheel drive. Surely there is a starting point, that does'nt start @ $2500 for the Pro-Street trans. Anybody want to sound off on this one? |
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VOLKSWAGNUT
Fastest VW Belt Changer
Joined: October 14, 2007
Posts: 11156
Location: Flippin' a Belt........ .... Off-n-On ... NC USA
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| Posted: Wed Sep 03, 2014 5:51 am Post subject: |
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Do you mean .. changing from an open differential to a limited slip or locking differential?
http://www.thesamba.com/vw/forum/search.php?search..._chars=200
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aka Ken {o\!/o}
Its your vehicle- stop askin' for approval-do what YOU like for cryin' out loud
Better to roll em' how you want and wear em' out-than lettin' em' rot out
Its about the going not the showing
Rebuilt to drive not decorate
WANTED: Local Eatin' Joints, Triple D for TheSamba contributions here http://www.thesamba.com/vw/forum/viewtopic.php?t=570510
Search "VOLKSWAGNUT" on YouTube since you cant watch a "certain" BELT change video round here
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Glenn 
Mr. 010
Joined: December 25, 2001
Posts: 79473
Location: Sneaking up behind you
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| Posted: Wed Sep 03, 2014 5:59 am Post subject: |
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If you're looking for a Limited Slip Diff, be prepared to spend major $$$$.
A ZF LSD for a swingaxle will cost over $1500 alone for a used one.
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Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
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עַם יִשְׂרָאֵל חַי
Last edited by Glenn on Wed Sep 03, 2014 5:59 am; edited 1 time in total |
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MentaL_FLoss
Samba Member
Joined: July 17, 2014
Posts: 10
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| Posted: Wed Sep 03, 2014 5:59 am Post subject: transaxle |
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| I'm talking about making both wheels drive instead of just the right rear. Or am I missing something? |
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Northof49
Samba Member
Joined: July 22, 2013
Posts: 1759
Location: Winnipeg, Manitoba, Canada
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| Posted: Wed Sep 03, 2014 6:37 am Post subject: |
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Both rear wheels get equal torque with the factory differential.
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VOLKSWAGNUT
Fastest VW Belt Changer
Joined: October 14, 2007
Posts: 11156
Location: Flippin' a Belt........ .... Off-n-On ... NC USA
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| Posted: Wed Sep 03, 2014 7:31 am Post subject: Re: transaxle |
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| MentaL_FLoss wrote: |
| I'm talking about making both wheels drive instead of just the right rear. Or am I missing something? |
Both wheels receive the "power" in an open differential.. that is.,. until one rear wheel becomes stuck or slips.. then the one with least resistance gets the most power..
An open differential is not optimal for conditions where it warrants the most traction...
Thats where a limited slip or a locking differential is sometimes wanted...needed.
As then.. the "power" is more evenly transmitted to both wheels during slip event..
Rarely does a rear engine Vw need a limited slip differential as it has the majority of weight on the rear axle...
I guess the next questions to you.. are,
Why do you think you need one?..
Why are you asking?
Maybe if we knew why.. we can advise specifically...
This is a common question and condition....
If you are wondering why your RR wheel spins with the rear drive axle raised and the engine running in with the transaxle in gear......
It simply means the RR has the least resistance when raised..
Maybe the brake is dragging on the left.. or its just simply easier to turn the RR then the LR..
It could be a number of reasons why...
If you were to slow down and then hold the RR... . the LR will be the one spinning.. as it has the least resistance..
If you were to have equal resistance on both.. they both spin equally..
In addition.. when a vehicle makes a turn... the outside of the car takes a longer path in the circle than the inside... the open differential allows ease of turning.. by allowing the outside and inside drive axles to rotate at different speeds.. .. (just like the front)...
Thats the way a common open differential works..
Class dismissed...
Link
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_________________
aka Ken {o\!/o}
Its your vehicle- stop askin' for approval-do what YOU like for cryin' out loud
Better to roll em' how you want and wear em' out-than lettin' em' rot out
Its about the going not the showing
Rebuilt to drive not decorate
WANTED: Local Eatin' Joints, Triple D for TheSamba contributions here http://www.thesamba.com/vw/forum/viewtopic.php?t=570510
Search "VOLKSWAGNUT" on YouTube since you cant watch a "certain" BELT change video round here
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BotanyBandit
Samba Member
Joined: February 13, 2013
Posts: 224
Location: Kansas City
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| Posted: Wed Sep 03, 2014 10:02 am Post subject: |
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| Awesome Video ! Thnx for the post |
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bdub475
Samba Member
Joined: April 05, 2009
Posts: 577
Location: Los Lunas, New Mexico
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| Posted: Wed Sep 03, 2014 11:58 am Post subject: |
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| I knew how a differential worked but that video was cool thanks for posting it. |
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Jon Schmid
Samba Member
Joined: May 29, 2012
Posts: 2125
Location: Southern California
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| Posted: Wed Sep 03, 2014 6:13 pm Post subject: transaxle |
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| Would a Torsen differential work here? |
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Jon Schmid
Samba Member
Joined: May 29, 2012
Posts: 2125
Location: Southern California
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| Posted: Wed Sep 03, 2014 6:59 pm Post subject: transaxle |
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Does anyone actually make a Torsen diff for old Vw's? Think.
I don't know, that's why I threw it out there. Apparently they made them for 356's and I know certain parts, like the halfshafts, are VW but used on the Porsches. |
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glutamodo
The Android
Joined: July 13, 2004
Posts: 26530
Location: Douglas, WY
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| Posted: Wed Sep 03, 2014 7:17 pm Post subject: |
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Not sure what Torsen means.
VW did offer an optional, limited slip differential as a little-known, very-rarely ordered option...
One page of the technical bulletin is shown below, many more can be found here:
http://www.thesamba.com/vw/archives/manuals/techbulletins/h1.php
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Jon Schmid
Samba Member
Joined: May 29, 2012
Posts: 2125
Location: Southern California
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| Posted: Wed Sep 03, 2014 8:10 pm Post subject: transaxle |
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| Torsen = torque sensitive. It's a trademarked name. |
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glutamodo
The Android
Joined: July 13, 2004
Posts: 26530
Location: Douglas, WY
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| Posted: Wed Sep 03, 2014 8:41 pm Post subject: |
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| Okay, well I'm more used to hearing "posi" and "limited slip diff". |
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VOLKSWAGNUT
Fastest VW Belt Changer
Joined: October 14, 2007
Posts: 11156
Location: Flippin' a Belt........ .... Off-n-On ... NC USA
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| Posted: Thu Sep 04, 2014 5:49 am Post subject: Re: transaxle |
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| Jon Schmid wrote: |
Does anyone actually make a Torsen diff for old Vw's? Think.
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Maybe...
| clearsurf2001 wrote: |
| Quaife makes a Torsen (torque sensing) diff - $1295 U.S. for swing axle, $1095 U.S. for IRS. Beef-a-diff (and its clones) add two more spiders into a heavy duty diff housing. Spools are available from numerous sources (good for drag racing but not much else)-BTW-cutting (steering) brakes do not work with a spool. Berg used to offer a "poor man's Posi" (no longer made) which consisted of a spacer and shims mounted between the side gears. Two wheel traction has becomes expensive! |
_________________
aka Ken {o\!/o}
Its your vehicle- stop askin' for approval-do what YOU like for cryin' out loud
Better to roll em' how you want and wear em' out-than lettin' em' rot out
Its about the going not the showing
Rebuilt to drive not decorate
WANTED: Local Eatin' Joints, Triple D for TheSamba contributions here http://www.thesamba.com/vw/forum/viewtopic.php?t=570510
Search "VOLKSWAGNUT" on YouTube since you cant watch a "certain" BELT change video round here
Usually and often edited
Last edited by VOLKSWAGNUT on Thu Sep 04, 2014 5:50 am; edited 1 time in total |
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gears
Samba Member
Joined: October 28, 2002
Posts: 4411
Location: Tamarack, Bend, Kailua
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| Posted: Thu Sep 04, 2014 5:49 am Post subject: Re: transaxle |
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| Quote: |
Does anyone actually make a Torsen diff for old Vw's?
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Sure. We've made them for both the early split case and tunnel type swingaxles. (This is the one you're thinking of for the 356, Jon. Zexel Torsen never made them for VW.)
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9.36 @ 146 in '86 Hot & Sticky
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