Gear Box and differantial oils

[nick]

hi guys
do u know oil specs that uses gearbox and front and rear differantial?
gear box and front dif is API GL-4 but SAE 75W/90 OR 80W/90?
and rear def is API GL-5 SAE 80W/90?

[SteveNZ]

I have tried many different gearbox oils. When I tried Tutela ZC75 syn (75w90) the syncro performance was much improved. Also, I was using a Tipo 16V gearbox with a 2.0L turbo engine in front of it and it never failed! That's the only racecar gearbox I've had that I've never had any problems with!

[Steve Webb]

Hi Nick,

this thread might be of help to you as well:

Gearbox & Diffs (http://forum.berlinasportivo.com/showthread.php?t=538)