Too many differential bushings available at a low enough price,,,to even consider half azzin’
& squeezing silicone/glue into a rotted rubber cavaty.
Almost be like removing differential drain & fill plugs...then pumping grease in diff from bottom until it escapes from ck. port???
If you don’t have proper tools/skills,,,I’m sure there are members on forum who would lend a hand to perform proper fix.
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