I have a 09 Shaw modified that I'm trying to get the correct wheelbase measured up, all the 4 link trailing arms are right where Kevin's setup book says to be at. I have measured 3 different times to confirm the wheelbase and the car shows to be trailing on the RR by 3/4 of an inch. Is there an exact place where to measure at on a Shaw? How would I need to go about fixing the wheelbase to the correct 1/4" trail? Thanks for any help!