Tony hawks ps2?

on the level downtown showdown i cant get ped the 2nd part were u have to grind the rainbow rails and transfer the gauntlet on the 1 before i simply bankdropped the jeep into a manual over to the rail and grinded i didnt even have to use any rigger equipment wit this i am really stug even useing rigger equipment i have searched the internet for guides or any 1 else with the same problem with no succsess any help would be much apreciated thank u