transfer box input gear - to change or not to change

Hi,

I bought a lt230 box off someone, its done about 100k miles in a 110
V8. I also got as part of the deal a new input gear (unfitted), but
having read the workshop manual, it seems replacing it is not so easy
as you have to measure the preload etc and change the shims etc to get
it right.

Do I risk just fitting the tbox without changing the input gear and see
how it whines?

Or risk changing the input gear without worrying about the preload
(just leave whatever shims are already in there?)

Anyone else changed the input gear without worrying about shims /
preload ?

Help....

Thanks alot,

Andrew

Andrew T. wrote:
> Hi,
>
> I bought a lt230 box off someone, its done about 100k miles in a 110
> V8. I also got as part of the deal a new input gear (unfitted), but
> having read the workshop manual, it seems replacing it is not so
> easy as you have to measure the preload etc and change the shims
> etc to get it right.
>
> Do I risk just fitting the tbox without changing the input gear and
> see how it whines?
>
> Or risk changing the input gear without worrying about the preload
> (just leave whatever shims are already in there?)
>
> Anyone else changed the input gear without worrying about shims /
> preload ?
>
> Help....
>
> Thanks alot,
>
> Andrew

Why do you need to fit the input gear? Are the gearbox output shaft splines shagged due to lack of oil?
If so, you will HAVE to change the input gear as it will be damaged. If it's Ok, why bother to fit it, or
is there some other reason matey?

--
Ta!

Nige

Subaru WRX (54)
Land Rover Turbo Diesel 110 (G)
KTM 520 SX (2001)

Good question...

I have no idea what the original gearbox output shaft was like when
they were removed from the 110, as the gearbox has been swapped for a
recon one. The guy I got both boxes from bought the new input gear but
never got round to fitting it.

So could I just take a look at the existing input gear from where the
gearbox shaft slides in, and if it looks OK then just leave it?

To be honest I'm slowly coming round to the idea of just putting the
(new to me 2nd hand) tbox in together with then new recon main box and
seeing what it all sounds like. If its really bad, then its not so bad
to take just the t box out again.

In fact the tbox thats on my 110 at the moment (not the same one as
discussed above) is not so bad, just whines a bit.

I definatly need to change the main box (LT85) as the original one I've
got on my 110 sounds very very bad, despite only having done 40k
miles.

Anyway thanks for your advice,

Cheers Andrew

Nige wrote:
> Andrew T. wrote:
> > Hi,
> >
> > I bought a lt230 box off someone, its done about 100k miles in a 110
> > V8. I also got as part of the deal a new input gear (unfitted), but
> > having read the workshop manual, it seems replacing it is not so
> > easy as you have to measure the preload etc and change the shims
> > etc to get it right.
> >
> > Do I risk just fitting the tbox without changing the input gear and
> > see how it whines?
> >
> > Or risk changing the input gear without worrying about the preload
> > (just leave whatever shims are already in there?)
> >
> > Anyone else changed the input gear without worrying about shims /
> > preload ?
> >
> > Help....
> >
> > Thanks alot,
> >
> > Andrew
>
> Why do you need to fit the input gear? Are the gearbox output shaft splines shagged due to lack of oil?
> If so, you will HAVE to change the input gear as it will be damaged. If it's Ok, why bother to fit it, or
> is there some other reason matey?
>
> --
> Ta!
>
> Nige
>
> Subaru WRX (54)
> Land Rover Turbo Diesel 110 (G)
> KTM 520 SX (2001)