He has swapped to G60 brakes and hubs, he didn't realise swapping the hubs means you need the G60 ball joints and they have to be drilled to fit the Caddy lower arms, also the track rod ends need maching down and re-threading due to an insane amount of toe. Doing this has prevented the need for spacing tho as the hub sits pretty much inline with the arch now

Also the Caddy Coily's needed adapting slightly to fit the G6o set up, all in all, a complete ball ache