Forum Discussion
BenK
Jan 08, 2018Explorer
Haven't read about this often, but remembered long ago on my Suburban forum...a similar issue with diff gasket leaks when using synthetic
Issue was silicone RTV inter-acting with the synthetic to cause the RTV to degrade & leak
Hylomar was the solution and think still have a couple tubes around the garage somewhere...
My diff covers have an OEM paper gasket that is reused. Used Hylomar on the gasket to diff cast iron flange and just diff lube on the cover side.
When changing diff fluid...loosen the diff cover bolts a couple turns. Wack the diff cover with a rubber mallet and it just pops off. Be sure to have a catch pan unerneath. Hand remove the bolts, clean and re-install the diff cover & torque to spec....done
Issue was silicone RTV inter-acting with the synthetic to cause the RTV to degrade & leak
Hylomar was the solution and think still have a couple tubes around the garage somewhere...
My diff covers have an OEM paper gasket that is reused. Used Hylomar on the gasket to diff cast iron flange and just diff lube on the cover side.
When changing diff fluid...loosen the diff cover bolts a couple turns. Wack the diff cover with a rubber mallet and it just pops off. Be sure to have a catch pan unerneath. Hand remove the bolts, clean and re-install the diff cover & torque to spec....done
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