Originally Posted by: 8D11PCH2 The rear screen is different between models with the high level brake light and those without is it not?
Depends on the car & model. Commodores from VT-VZ had a different rear glass for the SS (and other models with boot spoiler mounted brake lights, like HSVs). The black mask continued over the 3rd brake light opening in the rear glass when it wasn't needed. So to retro-fit a window mounted 3rd brake light, you need to change the glass. And there are young blokes who have spent big $$ getting the glass changed when they have "de-spoilered" the car - usually at the same time as they fit a lower lip kit from an SS or HBD catalogue, and hook up the invisible caravan that drops the rear down about 5 inches......
VR/VS brake lights sat above the mask level of the glass, but had the shelf curve up & over them. SS & HSVs with spoiler mounted brake lights simply had an uncut parcel shelf placed in there, and the globe holder taped up, allowing a later retro-fit simply by fitting the brake light assembly, and cutting the shelf to suit (or using a pre-cut shelf). The bulb is then plug & play in the previously redundant holder.
BA, BF & FG Falcons are the same - the shelf is left uncut, and a brake light isn't fitted to cars with a brake light in the boot spoiler. But retro-fitting is just the same as a VR or VS.
Holden made it easy from VE onwards - the 3rd brake light moved to the top of the rear window, so no matter if you have a boot spoiler or not, it stays the same - simplifying the part count, and assembly process.
Originally Posted by: edelbrock1 But what if the guy putting in the parcel shelf was just as lazy as me. He looks inside the car, sees the rear brake light and selects the parcel self for the brake light. hahhaha
Something to watch out for now you know that it is a possibility. :)
Yes, it would be, but if he read the sheet (to pick the right colour) he should wise up.... isn't that one of the reasons the unions tell us that "highly skilled" auto-assemblers have to be paid so much more than general factory hands?