The car is second hand. with no record of the rear end ever being worked on. checked it and it had plenty of fluid. took the nose off and opened the Viscous coupler. did not see any damage to the parts. the unit was not leaking either nor was the rear end. but the fluid was black in the viscous unit. in the rear end looks like the previous owner kept up with the fluid changes to the rear diff. because the oil was not bad either.
I believe in the coupler the fluid broke down. since the unit is from the factory if was meant to only last roughly 65k from what I found.
I am gonna add new fluid see if it lasts a bit longer. if not gonna have to find one online at a decent price. The units are made by Borgwagner. so I may try and find if I can get one direct.
