There is no bearing in the rear, the wheels don't have to turn!
It's a lump of cast alloy (or similar) with a very hard rubber bush in it where the damper rod runs through it. Two 16mm fix it to the body.
I changed mine after 17 years when I did my full running gear refresh. To be honest, I don't know why I bothered, the originals looked fine.
It's marginal whether you will notice any change if you spend your money.
Golf 1.8T AGU | 232Bhp | Rtech | k03s | Blueflame turbo-back exhaust | K & N panel | SFS / Forge hoses | TurboRevs SMIC | VR6 Clutch | SMF | Saikou Michi catch can | Bilstein B14s | S3 upper & lower braces | Eibach 25mm ARBs | All SuperPro bushes | 312mm/256mm brakes | 18" BBS RCs | Rline rear | R32 front | Hoefle skirts | OEM Xenons | Retrofit heated seats | One touch demister | W8 Interior light | Sunroof | TT Hubs | TT wishbones | TT quick rack |