Original design with thick ears that you may or may not want to trim down as they make a solid mounting. Probably best for a track / race car, unless you cut the ears off.
Have a search on here these are well documented.
https://www.powerflex.co.uk/road-se...box+Front+Mounting+Bush+Insert+Kit/12311.html
Have a search on here these are well documented.
https://www.powerflex.co.uk/road-se...box+Front+Mounting+Bush+Insert+Kit/12311.html