Did you callibrate your torque wrench? Not trying to be clever, but I did find my torque wrench was significantly out (would have over-torqued) before it was checked and re-callibrated. It was fairly new at the time, but I'd had a problem with a car's head stud, so got it checked out.
I've checked/adjusted my torque wrenchs as per on-line video tutorials...usually they are very close to spec, usually within 3%, so not going to be 10 or 20 ft-lbs over a 70 ft-lb setting
Never ever use the mainshaft / clutch stock circlip , ever .
Crushes , soft .
Never use the soft bend over tab retainer , soft metal .
06.8072 is the best circlip option , but you must sand it down a bit thinner to fit into the mainshaft slot , using a punch to sit home tightly in .
I wish Andover would provide this upgrade .
Good luck , enjoy .
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