quick question for you, cant find a good proper answer. maybe my google fu just sucks... Mcbrass September 8, 2017 at 8:05 PM i use Mobil 1 75w90 in everything I own. Pretty much a lifetime lube unless you drive incredible numbers of miles.
Overhauling a Opel GT Rear Diff. Unit Mcbrass September 6, 2017 at 6:56 PM Amazing project. Great job. I'm looking forward to hearing how the rebuilt differential sounds.