I'm trying to verify that the rearend in my '87 190D 2.5T is the original 2.65 ratio. I have heard that the ratio is stamped on the rearend housing somewhere. Since my rearend is kind of grimy (please save your jokes), can anybody tell me where to look on the housing?

SteveM.

__________________
'93 190E/D 2.5 Turbodiesel 5-speed (daily driver)
'87 190D 2.5 Turbo rustbucket - parts car
'84 Dodge Rampage diesel - Land Speed Record Holder
'13 Ram 2500 Diesel
'05 Toyota 4Runner