I have a Lotus 51 Formula Ford that has retained its original style Renault gearbox. I found that the replaceable release bearing is bad. It turns but it’s very hard. I have been looking for a replacement but am having trouble locating one. I also cannot see any manufacturer’s name or number on the piece. The inner diameter is 35mm and the outer diameter is 66mm. If any knows where I could buy a new one it would be appreciated. Thanks.