I bought the Rover pictured with cracked rails to strip for parts and it had the grub screw clutch. Judging from the paint (which matched other parts of the machine) it was original. The Briggs engine fitted also looked original and was built early '93. I also have another Rover 45 which is definitely original with a Briggs build of late '93 with the grub screw setup also... but no cracks
