As mentioned elsewhere, I hope to be reinstalling the axle quite soon - tonight's question has to do with differential oil.
The book says 90 weight - my bottle says 80-90 weight - I hope that is OK?
Also, any tricks? (With the Midget you fill the pumpkin till you can just feel the oil if you stick your pinky in the fill hole) Is there any similar tribal wisdom for GTs? AND do you put additives in the oil? I have Lucas oil stabilizer in the Midget and I think it makes it quieter.
thoughts?