Thanks again. My car was a hillclimb car so may well have 4.4. or 5.5.
I have been told that my diff is locked using high pressure viscous coupling. I assume that this means that the diff oil is under pressure so I am reluctant to open it.
Is there a way of determining the ratio by the relationship between input and drive shafts? 5.5 turns of the input driveshaft = 1 turn of the wheel driveshaft on a 5.5. diff? Or is that too obvious?
Thanks,
Charlie