i had my rear oil seal changed when i had my clutch system (plate, cover, pilot and release bearing), tumutulo na kse...and kahit d man tumulo, adviseable na isabay ito pag nagpalit ka ng clutch parts kse kailangan den ibaba yung transmission for the job

so imo, kung malakas ang leak, palitan na, front and rear yan, yung sa harap ko dati may tumulo naren, suspect ko sa front oil seal, pero oil pan gasket lang pala, ngayon malinis na ang ilalim ng engine bay ko...=)

mine's using the 4jb1 and a pikup...halos palang ng 4ja1 without the turbo and and its 2.8