The Rig

iTrader: (13)

What a normal my95 import WRX Has.

now im guessing it doesnt have LSD but what is DCCD and why does the oils make such a difference ?

i have just put 4 litres of syntrax 75 90 oil in gearbox, want to use the same in the diff,but after reading all the posts on LSD DCCD etc, not sure which i have if any im guessing i also dont have DCCD too so what kind of diff does the WRX have, just ya normal transfer kind ?

cheers.......

911

I think you will find (if your car is stock) that the car has a normal viscous centre diff with no front lsd (called an 'open-diff') and the rear diff will be a viscous unit.
The same oil goes in the lot, all the same.

Graham

The Rig

iTrader: (13)

cool,cheers, i like simple setups, well,more simple than others LOL


cheers again

vulnax999

iTrader: (7)

Graham

Which cars had viscous rear diffs?
Sure I read most non STi's / Ra / r's were open rear diff?

I need a 4.11 rear diff for my JDM wagon as it's whining and wasnt a LSD unit, STi's viscous coupling diff or even a plated diff, depending on availability and cost.

My g'box type is TH752VB3CA, so a 1.0 transfer gear and 4.11 front diff, so I expect a 4.11 rear diff ... front diff is open but spec I have doesn't state rear diff type!

Any help?

Neil

911

In my search through the 'Rear Diff Jungle' for my Sti it seems not everything is written down.
What (I think) I know is:
Sti have visc rears/open fronts
Sti RA have plated rears and open fronts
WRX have open everywhere

4:111 are more common than the 4:444 and the above are R160 diffs and all have the same driveshafts and hubs.
Now: The open rear diff cars COULD have different driveshaft on the N/S rear. For a visc diff that drive shaft has an extension (about 25mm) of another spline to engage with the visc cartridge.

A visc diff look horribly like a plated diff to a layman (ie me) so beware.

The Type R (basically 3 doors) have the stronger R180 diff, different driveshafts and different hubs and are all very rare of course!

Your code above must be a typo error and should be TY 752....not TH.

In my painful experience, the only way to be sure of the diff is to remove the back plate.

If/when i locate a plated 4:444 diff I will have 2 visc diffs for sale!
Both are R160's so will fit, but one is sort of spoken for.

It is much easier to get a 2 liter Imprza to deliver 700 bhp than finding diffs, and just as expensive
Graham

vulnax999

iTrader: (7)

Yeah, was a typo, is indeed TY752..

Found some 4.11 VC LSDs ... whether mine has an LSD or not it's getting one in a week or so, aong with a 1 piece prop and maybe rear wheel bearings/hubs/drive shafts, fdpending on what my noise is due to. Even if it's a rear bearing on the 'box!

911

Graham