Hi guys, I am actully really wanting to put focus rs drive shafts into the st170 gearbox, threason for this is i'm looking to use 235 40 18 tyres and i'm about to order a set of Leda suspension but as my little track beasty keeps eating wheel bearings both front and rear well it seems like it sometime but getting a wider track and beafer bearings would be awesome for the long run and further idea's.

so in short dose the rs share the same gearbox side driveshaft dimansions and is it easy to modify if not.??

Please help guys/ girls