Powerflex Black Series Rear Beam Mnting Bushes for Vauxhall Astra Mk4 (G)(98>04). Check Out Our Feedback. Powerflex Black Series Rear Beam Mounting Bushes To suit the following model(s): Vauxhall Astra Mk4 (G) (1998 > 04) Powerflex Part Number = PFR80-815BLK Fits rear beams with a 60mm diameter bush Bush Size = 60mm Quantity Included in this Price = 2 Powerflex Diagram Reference = 5 These Powerflex Black Series Bushes have been developed for Race, Rally & Circuit. They are manufactured using Powerflex’s Black 95 Shore A compound to provide maximum control of chassis geometry. They are 80% more resistant & 25% stiffer – the most precise and accurate alignment for your chassis. Since then we have grown to become one of the largest Performance and Styling Centres in the UK, with a huge and ever increasing website, and exporting to every corner of the globe. However, our commitment to service and value has never changed. We have enjoyed such prolonged success because we deliver excellent customer service – day in, day out. Our staff are the most knowledgeable and experienced in the UK. Quotes will therefore always be for an insured courier, or tracked post, depending on the weight and value of the item. For items that are being sent within the UK via 2nd class post, please allow 3-5 days from the date of dispatch before contacting us. We will have entered an approximate dispatch time on each listing. You have 14 days from the date of receipt in which to return your item. Experienced & Helpful Staff. Designed by Jarilo Design.