Im rebuilding a car that someone else took completely apart. Does the rear shocks get mounted inside the c-channel or between the gas tank and the channel? Is there a special stud for the upper mount or will a standard grade 8 bolt suffice? Any spacers if mounted inside the channel? Theres quite a bit of slop between the shock body and the inside of the c-channel. Ive got a FSM and it doesn't show shock orientation.