Hi, I probably added unnecessary confusion with that part, the Z32 has only one type, the short one (30501-B6064). There are other types out there for different Nissan models, if like me you buy second hand, it's possible to get the wrong one (I was supplied the wrong one initially from the second hand dealer)

@@simmoshomeworkshop thanks mate. That note regards to the clutch cover on the firewall was gold. I was making a template ready to drill it.