Powerflex Polyurethane Bush kit for Universal Bushes Top Hat Bushes Universal Kit Car Bush - PF99-111 - Bush Dimensions. Body Diameter = 28.95mm, Height = 12.6mm. Large Diameter = 34.5mm, Height = 4.1mm. Sleeve Length = 34mm, Bolt Hole = 10mm. - Bush Size: - PRICE IS PER CAR KIT, NOT per bush. Powerflex usually price their bushes singly, but we have combined the QTY and price to keep it simple for you!