Thanks Chris.

What’s it made of and how is it attached?
It’s made from a 300 series stainless, although aluminum would have been fine.
It’s attached with a single M8 socket cap. It’s probably over the top but there is a small protruding ‘heel’ step on the back mounting face, in an attempt to bias the thin front portion of the deflector hard up to the sump casting when the bolt is tightened.

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The underside looks to be slightly lower than the base of the gearbox housing - thus increasing the chance of impact?
The deflector is exactly the same thickness as the gearbox step at the center, so the midpoint ground clearance has not been reduced.

[Linked Image]


Wouldn’t the energy from said impact be transmitted to whatever fixes the plate to the housing and thus to the housing itself?
Hopefully owing to the deflector’s angle, some of the impact energy will now get transferred to lifting the car/engine. However the bottom line is, the deflector is attached to a reasonably strong part of the gearbox casting and is sat on the very stiff vertical edge of the sump casting. I’m happier now with it in place, compared to how the car left the factory.

Any mileage in cutting off the portion of gearbox that protrudes below the sump?
Like you, I pondered long and hard about cutting that protruding portion off but decided it was a bad idea in the end. It could create a gaping hole through to the clutch assembly. Then I would have needed to make/fix a cover plate to keep the muck and wet out. It was much easier to attach the deflector. Once the deflector was on it also crossed my mind to lop off that little protruding lug on one side that you can see. But again, why butcher the casing unnecessarily. Should the lug ever be impacted, it will probably just snap clean off anyway. So no real harm done…


Roger
2011 Plus 4