I have a 98 explorer 4.0L RWD automatic and it has a horrible shake up front that feels like i have a loose wheel but everything is tight. I have replaced sway bar links and bushing, rotors, calipers, wheel bearings, u-joints, outer tie rods, wheel seals and caster/cambers. The only thing left is ball joints, control arms, and rack n pinion, could either of those 3 things cause the shaking im feeling? Its bad enough that im scared to drive it but its my only means of transportation and all these repairs have me broke financially. Any tips or suggestions?