I'd say $500 to $600 to replace front and rear main seal along with cam seals and oil pan gasket as well while you are in there. Might as well do timing belt and water pump as well which would push it to $700-$800.
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Don't bother giving me "rep", I won't return it and I think it is stupid.
Gracie Barra Clearwater
Gyms in Clearwater, St. Pete and Port Richey
pm me if you are interested in trying a free class at any of the gyms.