I purchased a used voyager trike kit for my 04 Harley Ultra and didn't get any of installation or support gear. I ordered installation manual and the jack stands from Voyager but manual isn't very clear. When installing belly pan if i install with flat end forward so you can access drain plugs I can't get the 31 inches to center rear tire and if I install with open end forward I can't access drain plugs. So which way goes forward and what is exact reference point for the 31 inches. Manual says center rear wheel. Thanks for any assistance