Centre Diff Replacement and Gearing

hi all, well i have got my electric Thunder TIger EB4 S3 buggy running now!

but

its overgeared so over heats a lot, im running a ezilla/savage esc and motors, does anyone know what the stock gearing on those trucks are?

and

to be able to change the gearing more easily, i want to get rid of mod1 pitch that im using atm(go to 32 or 48dp), and have a slipper clutch.
so are there any slipper units that i could drop in on my setup and get rid of the centre diff(it leaks too :( )
does that make sense?

thanks in advance