A vehicle subassembly comprising: a frame; and a component rotatably attached to the frame by a joint assembly located within the frame, the joint assembly comprising: at least one housing comprising an inner diameter portion having a tapered surface; at least one shaft having an outer diameter portion having a tapered surface that is complementary in shape to the inner diameter portion of the at least one housing, wherein at least one of the at least one shaft or the at least one housing is adapted to rotate relative to the other, and wherein the frictional fit is adjustable by modifying the axial position of the at least one shaft relative to the at least one housing; and wherein the at least one shaft has subcomponents including a first shaft and a second shaft, and wherein the joint assembly further includes a connecting component connecting the first shaft to the second shaft and capable of adjusting the axial position of the first shaft relative to the second shaft, characterized in that the subassembly comprises a step formed in the tapered surface of the at least one shaft or tapered surface of the housing to prevent axial movement of a bearing. a frame; and a component rotatably attached to the frame by a joint assembly located within the frame, the joint assembly comprising: at least one housing comprising an inner diameter portion having a tapered surface; at least one shaft having an outer diameter portion having a tapered surface that is complementary in shape to the inner diameter portion of the at least one housing, wherein at least one of the at least one shaft or the at least one housing is adapted to rotate relative to the other, and wherein the frictional fit is adjustable by modifying the axial position of the at least one shaft relative to the at least one housing; and wherein the at least one shaft has subcomponents including a first shaft and a second shaft, and wherein the joint assembly further includes a connecting component connecting the first shaft to the second shaft and capable of adjusting the axial position of the first shaft relative to the second shaft, characterized in that the subassembly comprises a step formed in the tapered surface of the at least one shaft or tapered surface of the housing to prevent axial movement of a bearing. at least one housing comprising an inner diameter portion having a tapered surface; at least one shaft having an outer diameter portion having a tapered surface that is complementary in shape to the inner diameter portion of the at least one housing, wherein at least one of the at least one shaft or the at least one housing is adapted to rotate relative to the other, and wherein the frictional fit is adjustable by modifying the axial position of the at least one shaft relative to the at least one housing; and wherein the at least one shaft has subcomponents including a first shaft and a second shaft, and wherein the joint assembly further includes a connecting component connecting the first shaft to the second shaft and capable of adjusting the axial position of the first shaft relative to the second shaft, characterized in that the subassembly comprises a step formed in the tapered surface of the at least one shaft or tapered surface of the housing to prevent axial movement of a bearing.