DRFVDR

Centre diff locking for RWD how to by Uncle Darth

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Firstly this is a how to dealing with welding a centre diff BUT allowing the retaining of the front axles so to make it easier to pass a WOF without to many questions.

Now for the warnings I take no responsibility about any damage done to the vehicle or person whom under takes this mod .

You will need to take the centre diff out of the gearbox, this can be done with gearbox in car :)

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This is the centre diff as it should look (this one is from a 93ish GT so yours may look different)

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Dismantle the centre diff by removing the circlip I would also remove all bearings if u wish to reuse them,

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You should now have 3 bits the carrier, the drive flange and the viscous coupling, u will need to cut part of the viscous coupling of to negate the front drive

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After some measurements I figured out that a length of 20mm would work best

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Marked

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Cut

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The 2 parts now, a wee clean up and looks good I used a 4" grinder with a 1mm cutting disk on it,I would suggest having it parted of in a lathe but mine is only a wee hobby lathe

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All back together and welded at the spider gears

Put back in and go do a some skids :)

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nice write up mate!

got this thread saved . never know might take this on one day but would need to go in a spin in one to know for sure :)

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Guest vf20/21bg5

Perfect to a tee! This is what i done....but make sure those welds are strong! a grunty mig is key 8)

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Just one lil thing from my experience with rwd'n mine, I had to use an old shaft from a gearbox to align all the gears in the center diff while it was being welded, the first center diff i got done without this and it wouldn't fit back into the gearbox.

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thanks alot followed this too the t and walla my car is rwd but for some reason im scared my welding will brake lol an ive done a few burn outs already with a six puk clutch

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See now this is an interesting and oddly cheap avenue to getting a rwd turbo car. But how do the rear diff and axles hold up? I have heard of people converting to a skyline diff but now cannot find the information

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 BLSTIC said:

See now this is an interesting and oddly cheap avenue to getting a rwd turbo car. But how do the rear diff and axles hold up? I have heard of people converting to a skyline diff but now cannot find the information

r160 axles dont like it at all I can tell you that much haha

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hey i wasnt complaining when it happened, we had someone there complaining enough for the 3 of us

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 dacerx said:

hey i wasnt complaining when it happened, we had someone there complaining enough for the 3 of us

true atleast there was plenty of entertanment between jade and him lol

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Hi after reading this thread keen to try out rwd :D

but I was wondering can I use any centre diff out of any gearbox, and not have to worry about centre diff ratio matching then swap my original back in when I want to.

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 vfjohno said:

Hi after reading this thread keen to try out rwd :D

but I was wondering can I use any centre diff out of any gearbox, and not have to worry about centre diff ratio matching then swap my original back in when I want to.

No, you\'ll need a matching centre diff if you want a spare, they won\'t all fit. What car have you got?

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Hi I have v4 wrx ra

4.44 final drive

Damn I was hopeing to just get a broken gearbox and pull the diff out weld the spiders and cut the front drive shaft coupling so without driving the front wheels the rate the diff spun wouldn\'t mater.

Is there a reason this wouldn\'t work?

Is the spline count different?

Sorry I\'m not to on to it with diffs and stuff :(

Gearbox code ty752vb5ba

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 vfjohno said:

Hi I have v4 wrx ra

4.44 final drive

Damn I was hopeing to just get a broken gearbox and pull the diff out weld the spiders and cut the front drive shaft coupling so without driving the front wheels the rate the diff spun wouldn\'t mater.

Is there a reason this wouldn\'t work?

Is the spline count different?

Sorry I\'m not to on to it with diffs and stuff :(

Gearbox code ty752vb5ba

Need to check but isnt that code a DCCD box? I wouldnt be fucking around with it just wind the wheel. If you want more driftpig then you shouldnt have an RA.

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the centre diffs dont have a ratio,

as long as the "spare" centre diff has the same spline counts then you will be good to go

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Nah not dccd :)

Couldn\'t be bothered going out in the rain for box code just googled specs must got wrong :-[

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Yeah I know shouldn\'t be doing skids in a wrx but I bought the car as a toy and skids and drifts are fun ;D

I think worse case diffs and axels are pretty cheap and just as likely blow the motor on the track as doing a burnout so yeah just an idea at the moment :)

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 DacerX said:
yeah pushing your rs 4km in he dead of night after snapping one wasnt that fun

Out of curiosity what were you doing drifting or launching or doing burnouts as in sorta trying to gauge what I am able to get away with?

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