S4c Gearbox Help


Vali_lj

Vali_lj

Ek9 dreamer
Joined
Apr 24, 2010
Messages
84
Hi
i have a S4C vti Non LSD standard gearbox in progress of making a LSD one. I have the EK9 LSD and FD. I'm stuck whit a bearing problem:
oem EK4 91005-PS1-003 (40x80x18) Ball type (non LSD)
oem EK9 91005-P80-003 (40x80x17) Roller/Taper type
oem ITR 91005-P80-E31 (40x80x18/19.5) Ball type

Some pictures

EK4 S4c non lsd

EK9 S4C LSD

MB S9B LSD

which one do i have to use in the vti S4c gearbox? In all the pictures of the ek9 S4C gearbox i also find some shims that go with but i don't know if only goes for the roller kit or also for the ball type bearings? Or just swap de LSD and FD and be done with it.
for the ITR one i know is a different tipe of gearbox so they will be different and will exclude that one

I was wondering are there any other wear parts which would be worth changing out or at least look at while im at it... like oil seals , other bearings.

Please Help ::bow:
 
Last edited:
You can't just drop the fd and LSD into a non LSD box. The casing needs to be modified to fit these parts.

The shims you are on about are to adjust the free play in the diff bearings I think
 
Done the conversion today ...The casing doesn't need to be modified , and no shims .... it's a straight swap if you have the itemms below:

S4C hydro gearbox non lsd
Ek9 LSD & FD
2 x ITR diff bearings (91005-P80-E31)

And the hororr stories that i've heard :angry2:

S4C (EK4) & S4C (ek9) are the same s%$t apart form more syncro's and LSD/FD and diff bearings on the type r one. This is my opinion.

LE: pictures :

10.jpg

12.jpg
 
Last edited:
I have done the same with Y21 gearbox and s80 LSD - I had to grind off some casing..but it was easy.
 
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