Hi,
I am Wolfgang's buddy who makes these torque straps from Germany :)
To my knowledge, Hemi does NOT fit because of the big heads and the different motor mount?!?
But I never had a own Hemi and do not have the experience as user "kursplat" - where it seems to fit.
My tensioning element - shaft lenght is approx. 20mm shorter than the schumacher.
Kind regards
Christoph