There is a gasket behind that 6 bolt flange. It may sound dumb to say this, but the differential wont come out of the housing if you havent pulled the axles.

Yours is a single speed right? If it is, there shouldnt be any shims. The only adjustment is through the the carrier side bearings.

Heres pics of my tear down.

And heres pics of the rebuild.

Jeff


My 1953 Chevrolet
1947.1 Gallery
1972 C-10 1/2 Ton & 1972 C-30 1 Ton