Call them up or await for someone who has them; I know that you want to lock the camber bolts to a fixed position & adjust at the arm...not sure if you are purchasing the rear toe arms also. SPL is Premium stuff $$$....they should be able to walk you through what you need.
Mine is still stock & is maxed at -1.7* and this is what a burnout does with 275/40's on back... Notice the inner part.
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