i drive mine to work about once a week. other then that i drive the little ford escort lx sport. that little car will do 110 easy. and gets 32 mpg. i know where a dozen rear ends are, all posi. 9inch. i dont know what mike wants for them but he is in the book. mikes auto parts in burlington iowa. i usually get stuff pretty cheap there. although lately i been going to murphys