Good call on the LED brake lights. I'm considering
Custom Dynamics 1157 1.85" clusters for my
smoked elephant feet. Spendy though at $50 each. Intensity, wide angle viewing, and high intensity differential between tail and brake modes are the factors to check for when selecting a LED tail/brake light. Good motorcycle info
here.
LED's would work in all bug rear light assemblies.
They all point straight back. It's the reverse light that points down in the 68-72's.