My p38 01 plate rangerover steering shakes like nobody's business when I hit about 50 mph I've changed the wheels all 4 new 19 inch alloys and Pirelli scorpion tyres just had new bushes put on aswell but when I was underneath noticed new bolts on the front prop been told prop could need balanced...

My 01 p38 shudders right through the steering wheel when I hit around 50mph now I have put new wheels and Pirelli scorpion tyres on all 4 wheels had them balanced etc new poly bushes put on aswell but while was underneath noticed front propshaft had new bolts on they were loose then tightened...