LSD, locked or f***ed gearbox

[ants_ae92]

Hey guys,

I have an ae92 4age with an unknown gearbox, as I think it has been replaced before I brought it. (engine also replaced, the guy liked blowing stuff up)

The question is does it have an LSD gearbox? Now the code says c-52 on the firewall, but both wheels spin the same way, when off the ground. Or would they both spin the same way if it was locked or even f***ed.

I've tried searching for this, but it just confuses me at the mo, I mean what type of lsd does a gtz gearbox have?

Is there any way to tell without taking the box out or dropping the clutch? Like measuring the width of the driveshafts? gtz gearboxes have bigger driveshafts right?

Any suggestions?

[DVLRCR]

you could try jacking up one side of the car, not far, just enough to get one wheel clear from the ground. then with all your might, try to turn the wheel. if it wont budge, or even if the opposite wheel turns, it aint good. if you can move one without the other (probably only just) then chanses are my friend, that there is some LSD there. but then again, i could be wrong... like i normally am

[CozmoNz]

One wheel on the grass, one wheel on ashfault, rev her up and dump the clutch.

then go back and check if you left a black mark, or just a dirty poo stain

[Bling]

hahahahha the above method seems quite a popular test to do these days

[aesc]

OK this is what I understand... Someone correct me if im wrong (highly likely)

I didnt think that any C52s were factory LSD. Also just because the wheels spin the same way when jacked up doesnt mean its an LSD either.

GTZs have a viscous type LSD, and no the only difference between GTZ and standard driveshafts is the number of splines, so the are the same size etc.

But yeah, best way to tell is just to lay a patch and see if you have two marks or just the one. The other thing is that if it is an LSD and its worn it may not work properly

[Loudtoy]

One wheel on the grass, one wheel on ashfault, rev her up and dump the clutch.

then go back and check if you left a black mark, or just a dirty poo stain

And if it's locked it will do the same as an lsd (sigh does no one read the 1st post anymore??)
If you do the above test, and the car behaves like a normal open diff car in all other respects, especially when turning whilst reversing you have an lsd, if it seems to jump around whilst turning at low speed, not want to turn and just be a real arse to drive at any speed you have a locked diff, front drivers don't turn with a loced diff, tend to need handbrake assistance to do it which is why you hardly (unless the guy who did it is a munter) see fron't drivers with locked diffs
Hope this helps a little!

[ants_ae92]

Thanks loud toy. Yeah I think it isnt locked as its not bad to drive at all.

Really didnt want to do the grass/asphalt test as I don't really want to rip up my new 17 inch tyres.

Yeah I thought no c52 ever came factory lsd, but I said it my not be factory. The guy I brought it off, his son was a nutter, and managed to blow up a few 4ages, and/or gearboxes. So it may not be standard???

Both wheels spin the same way, but the mechanic at my work was turning the wheels one way, and tryed to turn one the opposite way and he couldn't. (I thought that was what you could do on an open diff)

Anyway Ive got to replace cv's and/or their boots soon so how many splines does a gtz driveshaft have? And how many does a c52 driveshaft have? I will check when it comes out!

[vvega]

GTZs have a viscous type LSD, and no the only difference between GTZ and standard driveshafts is the number of splines, so the are the same size etc.

can you explain this
the gtz axels an the c52 axels are very different indeed??
im unsure if this what what you ment
???

v

[ants_ae92]

GTZs have a viscous type LSD, and no the only difference between GTZ and standard driveshafts is the number of splines, so the are the same size etc.

can you explain this
the gtz axels an the c52 axels are very different indeed??
im unsure if this what what you ment
???

v

Thats what I thought hence it would be an easy way to see if its a gtz or normal c52 gearbox?

[aesc]

Nope I cant

Sorry for some reason I was comparing E58 lsd shafts to E58 non lsd shafts, in which I believe only the splines are different

[ants_ae92]

Well e-series gearboxes will probably have the same size driveshafts, but a c-series gearbox? I would say smaller driveshafts.

[vvega]

yeahs the splines are longer on the viscous lsd model
other than that there all the same
same as the mr2 turbo
same as the camry

the c series box is a completly different setup again
much smaller shaft size

v

[vvega]

yeahs the splines are longer on the viscous lsd model
other than that there all the same
same as the mr2 turbo
same as the camry

the c series box is a completly different setup again
much smaller shaft size

v