well I know nothinhg really baout cars as I've been riding bikes for years but bought a trike recently (what with the snow) it has a ford escort rear axel shaft drive linked to kawasaki 700 engine anyway I'm assuming I need to lubricate/grease up yhr inside of the rear axel but how do I do this can't sen to see a grease nipple there is a plug yoke on the top side though??