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#4618645 - 12/30/17 10:03 AM AWD to FWD conversion: done it (temporary)
Superflan Offline


Registered: 04/28/15
Posts: 336
Loc: Reunion Island
So, in a previous topic, I questioned if it was safe to drive in 2WD mode while waiting for a decent rear diff replacement on my wifeís car, which is a front wheel dominant 4WD car.

Long story short, the 2WD button was tipped of by the keys, and the rear diff case splitted, almost in two.

So to get things rolling while awaiting a decent rear diff replacement, I decided to remove the driveshaft, diff, axle shafts, separate the cv joint bowls and put them back in the hubs to hold the bearings.

Well, it took a few steps:
Jack up the car, remove catback exhaust (2 bolts, 4 rubber mounts) and rear wheels
Remove driveshaft (4 screws on front, 4 bolts on the rear diff, 2 bolts that holds the halfway mount)
Remove diff (1 electrical connector, 2 pipes, 2 screws upside, one bolt on rear), bring it down halfway
Remove axle shafts from diff (a good lever is needed to pull them out of the diff case) and pull diff away
Remove axle shafts from hubs: Unscrew the big nut in the center of rear hubs and push the shafts inside with a hammer, holding on the other side to prevent them from falling
Separate the cv joint ends from the shafts: need to open the big end collars, slide boots and pull them off with a hammer and piece of wood
Screw them back in the hubs after sealing
Refit exhaust and wheels, put car on ground, ride smile
_________________________
Yaris 1.0 200mkm 10W40 ACEA A3/B4
Kangoo 1.5 DCi 120mkm 15W40 ACEA E7
Wife's Koleos 2.0 dCi DPF eco-map 158mkm 5W30 C3

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#4618691 - 12/30/17 10:37 AM Re: AWD to FWD conversion: done it (temporary) [Re: Superflan]
andyd Offline


Registered: 09/25/04
Posts: 6892
Loc: Marshfield , MA
How does it go? You are on a dot in the middle of the Indian Ocean. Resources are limited. Fix it,make do, go without. You made the best of what you had to work with. Bonne Annee grin2
_________________________
'16 Camry LE STP synth 0w20 and STP filter. the Fridge

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#4618692 - 12/30/17 10:37 AM Re: AWD to FWD conversion: done it (temporary) [Re: Superflan]
Linctex Offline


Registered: 12/31/16
Posts: 5724
Loc: Waco, TX
Good on you!

How much to do the repair back to original?
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"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."

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#4618717 - 12/30/17 10:57 AM Re: AWD to FWD conversion: done it (temporary) [Re: Superflan]
Donald Offline


Registered: 03/21/04
Posts: 20250
Loc: Upstate NY
I would have rented a car while I waited.
_________________________
2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)


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#4618744 - 12/30/17 11:19 AM Re: AWD to FWD conversion: done it (temporary) [Re: Superflan]
5AcresAndAFool Offline


Registered: 12/18/16
Posts: 375
Loc: Indiana
When I was an auto tech there was a AWD Ford Tempo that a customer had that had the rear driveshaft removed and it seemed to cause no harm.

If I ever have rear differential trouble with our sienna I will just pull the driveshaft.
_________________________
2005 Toyota Sienna LE AWD 67k
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Plethora of outdoor power equipment.

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#4618844 - 12/30/17 01:26 PM Re: AWD to FWD conversion: done it (temporary) [Re: Superflan]
ctrcbob Offline


Registered: 01/01/06
Posts: 606
Loc: Mount Dora FL, Penfield NY, R...
Off Subject.

How far is Mauritius from la Reunion?

I have friends who normally go to Reunion, but this year, they went to Mauritius.
_________________________
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Roswell NM

2018 Sonata 2.0T Limited
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#4618899 - 12/30/17 02:58 PM Re: AWD to FWD conversion: done it (temporary) [Re: Superflan]
SR5 Online   content


Registered: 07/07/15
Posts: 4291
Loc: Down Under
Nice work OP
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Penrite Vantage 10W40 SN & A3/B4 + Wesfil-Cooper Z154

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#4618967 - 12/30/17 04:11 PM Re: AWD to FWD conversion: done it (temporary) [Re: 5AcresAndAFool]
fdcg27 Offline


Registered: 09/25/09
Posts: 15444
Loc: OH
Originally Posted By: 5AcresAndAFool
When I was an auto tech there was a AWD Ford Tempo that a customer had that had the rear driveshaft removed and it seemed to cause no harm.

If I ever have rear differential trouble with our sienna I will just pull the driveshaft.


Well, if the case was split, there'd be no lube at all and the OP was probably afraid that it would lock up in use, with potentially dire results.
My first thought was also simply to remove the driveshaft, but after thinking a bit, I came to understand why the OP did what he did to take the rear diff out of the equation entirely.
I recommend that we name OP DIY mechanic of the year 2017 for having thought through the problem and then doing a whole lot of work to remedy it, all of which work he knows he'll have to repeat when he gets a new diff.
_________________________
17 Forester 12K MSS 0W-20
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96 Accord LX 104K T5 10W-30
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#4618986 - 12/30/17 04:28 PM Re: AWD to FWD conversion: done it (temporary) [Re: Superflan]
oil_film_movies Offline


Registered: 06/13/16
Posts: 2261
Loc: MN
I recommend never installing a new AWD rear diff.
You don't need AWD on an island at that latitude. Snow? Ice? No.

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#4619083 - 12/30/17 06:27 PM Re: AWD to FWD conversion: done it (temporary) [Re: oil_film_movies]
fdcg27 Offline


Registered: 09/25/09
Posts: 15444
Loc: OH
Originally Posted By: oil_film_movies
I recommend never installing a new AWD rear diff.
You don't need AWD on an island at that latitude. Snow? Ice? No.


An abundance of rain along with high, muddy hillsides?
Yes.
Hence the need for AWD.
Nobody as thoughtful as the OP buys an AWD on a lark, unlike many Sunbelt Subaru owners.
_________________________
17 Forester 12K MSS 0W-20
12 Accord LX 86K PP 5W-20
09 Forester 95K M1HM 10W-30
01 Focus ZX3 118K PP 5W-20
96 Accord LX 104K T5 10W-30
95 318i

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#4619161 - 12/30/17 08:03 PM Re: AWD to FWD conversion: done it (temporary) [Re: andyd]
Superflan Offline


Registered: 04/28/15
Posts: 336
Loc: Reunion Island
Originally Posted By: andyd
How does it go? You are on a dot in the middle of the Indian Ocean. Resources are limited. Fix it,make do, go without. You made the best of what you had to work with. Bonne Annee grin2

It goes alright! Only have the service light on, and a ďCheck 4WD systemĒ displayed on instrument cluster.

Originally Posted By: Linctex
Good on you!

How much to do the repair back to original?

I can source some used rear diff for around 1000 USD + shipping from a salvage yard. Hope Iíll find one with no problem. The thing is the service manual says that the output seals are to be replaced each time removing the shafts. Plus Iíll need new cv joint boots collars.


Edited by Superflan (12/30/17 08:04 PM)
_________________________
Yaris 1.0 200mkm 10W40 ACEA A3/B4
Kangoo 1.5 DCi 120mkm 15W40 ACEA E7
Wife's Koleos 2.0 dCi DPF eco-map 158mkm 5W30 C3

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#4619173 - 12/30/17 08:18 PM Re: AWD to FWD conversion: done it (temporary) [Re: fdcg27]
Superflan Offline


Registered: 04/28/15
Posts: 336
Loc: Reunion Island
Originally Posted By: Donald
I would have rented a car while I waited.

Of course, but renting for months is costly, plus the chance of damaging the paint on offroad/dirt roads.

Originally Posted By: ctrcbob
Off Subject.

How far is Mauritius from la Reunion?

I have friends who normally go to Reunion, but this year, they went to Mauritius.

Maybe 150 miles away

Originally Posted By: fdcg27
Well, if the case was split, there'd be no lube at all and the OP was probably afraid that it would lock up in use, with potentially dire results.
My first thought was also simply to remove the driveshaft, but after thinking a bit, I came to understand why the OP did what he did to take the rear diff out of the equation entirely.
I recommend that we name OP DIY mechanic of the year 2017 for having thought through the problem and then doing a whole lot of work to remedy it, all of which work he knows he'll have to repeat when he gets a new diff.

You got it, safety was the concern. As weíre not rolling on dollars, finding a comfortable ride to rent, plus the fact that it would be damaged, took the rental out of equation. Same with buying another used backup comfortable car.

My wife is a visiting nurse in some difficult access areas. Ground clearance is a must, LSD/antislip is strongly recommended and 4WD is a real comfort.
_________________________
Yaris 1.0 200mkm 10W40 ACEA A3/B4
Kangoo 1.5 DCi 120mkm 15W40 ACEA E7
Wife's Koleos 2.0 dCi DPF eco-map 158mkm 5W30 C3

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#4619234 - 12/30/17 09:33 PM Re: AWD to FWD conversion: done it (temporary) [Re: fdcg27]
Superflan Offline


Registered: 04/28/15
Posts: 336
Loc: Reunion Island
Originally Posted By: fdcg27
Originally Posted By: oil_film_movies
I recommend never installing a new AWD rear diff.
You don't need AWD on an island at that latitude. Snow? Ice? No.


An abundance of rain along with high, muddy hillsides?
Yes.
Hence the need for AWD.
Nobody as thoughtful as the OP buys an AWD on a lark, unlike many Sunbelt Subaru owners.


This is it. She had a 2WD Dacia Duster with A/T tires and she would occasionally get stuck (many times a month). I thought she could get away with installing an LSD, but the car needed much suspension job and was at 100000km, she wanted to upgrade to a more comfortable ride so she went to the Koleos in Auto Trans and AWD, along with superior interior trim and all the bells and whistles.

We could have chosen a smaller, LSD modified new car (thereís some businesses that do this), but it would have cost the same, plus the fact that we couldnít have traded the old car in.
_________________________
Yaris 1.0 200mkm 10W40 ACEA A3/B4
Kangoo 1.5 DCi 120mkm 15W40 ACEA E7
Wife's Koleos 2.0 dCi DPF eco-map 158mkm 5W30 C3

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#4619453 - 12/31/17 08:00 AM Re: AWD to FWD conversion: done it (temporary) [Re: Superflan]
Cujet Offline


Registered: 02/15/03
Posts: 6981
Loc: Jupiter, Florida
Superflan, I'm impressed. That's a lot of work.

You are the only guy I know who maintains his cars by removal of the bad parts smile When the sway bar breaks, remove it, when the differential fails, remove it. Won't be too long before there is nothing left to drive, and a big pile of car parts in the corner.... Dented fender, pull it off. Bad headlight,,, same thing, get rid of it.

(just messin' with you, of course) Again, I am impressed.

I hope you can find a good replacement and get it back to 100%.
_________________________

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#4619478 - 12/31/17 08:34 AM Re: AWD to FWD conversion: done it (temporary) [Re: Superflan]
Superflan Offline


Registered: 04/28/15
Posts: 336
Loc: Reunion Island
Indeed, here are the missing parts on this car:

-4WD parts (most) (will be replaced)
-plastic engine cover (noise damping foam went in dust)
-plastic engine bellypan (maybe a good metal skid plate)
-rear window hat (fell off, but like it that way)
-rear sway bar and links
-1 wheel lug nut (Iíve put cheap antitheft nuts in place but they are far from perfect)

Here are the broken parts that will be replaced soon by insurance coverage :
-right rear door (severe damage, need replacing)
-front bumper and mounting parts and accessories

And the broken parts that needs repair :
-a power window switch lost itís auto-up function
-sunroof shade broken
-FM antenna wiring seems cut, lost RDS and half signal strength
-rear window wiper
_________________________
Yaris 1.0 200mkm 10W40 ACEA A3/B4
Kangoo 1.5 DCi 120mkm 15W40 ACEA E7
Wife's Koleos 2.0 dCi DPF eco-map 158mkm 5W30 C3

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