Sway bar end link length question HELP

My coworker here thinks on the 70 model, you could order cometition handling pkg and that would get you the rear sway bar. THe 70 Boss 302 came standard with that pkg. THe front sway bar should be larger than a stock sway bar. Sorry, don't know the sizes. Not sure if there were any other parts that distinguished the comp handling pkg. OK, my coworker reminded me we have a 70 Boss 302 project car in storage. I jacked it up and pulled a wheel. THe bolt measured 9.5 inches. It looks factory, but this car has really been "worked on" if you know what I mean. It looks like some one was racing it. SO don't take that measurement as gospel, but like I said, the rear sway bar looks like it's an original piece.