I think with a lot of conventional engines, the oil level in sump is below sump gasket level.

 

I did a rough calculation holding a gearbox dipstick trying to replicate the bend in the tube and came up with a level below that of the stub axle seal

 

Has anyone seen adiagram indicating such levels in our Subes?.

 

Not even sure if the box sits level or rear end lower at factory stance.

 

Im expecting to see just one part number for these dipsticks.

 

I bought a single range awd years ago - yet to use it found dipstick a bit short - something bin chewing it !

Doesn't matter - roads and driveways are never perfectly flat planes that are level in all directions.

 

3.7 quarts. These are splash lubed so anything between say 3 and 4 quarts is going to be just fine. 
 

There are multiple dip stick part numbers depending on year, turbo or non, etc. The angle of the handle and the length of the tube on the transmission differs.

 

GD

Thanks GD. Never really thought about trans oil sloshing about on slpes and inclines - mainly considered engine oil and fuel in carb bowls - but you are right.

 

A sort of guesstimation should do for the other box I am tearing inot to swap 23 splines in. It is a combination of DR 5MT cases, with an AWD transfer case and extension. Think there is a 200ml difference betwen the two standard boxes DR to AWD.

 

This box is so clean inside the back end so far, everything is shiny silver steel !