A partial and a full drop vertical vehicle slider assembly are provided that do not require a horizontal beltline support member. For the partial drop assembly, two fixed panels each with a division member, an upper header member, and a horizontal vehicle body opening edge abut to form the slider panel opening. For the full drop assembly, an upper header member, two upper slider assembly side members, and a horizontal vehicle body opening edge abut one another to form a slider panel opening. In both cases, the horizontal vehicle body opening edges have seals attached, through which a slider panel vertically slides up and spans the vertical extent of the slider panel opening to close the slider assembly, and slides down into the vehicle body to open the slider panel opening. In the case of the full drop assembly, unimpaired backlite viewing is provided.