Acquired this axle today, but unsure of what it fits. I'm thinking air cooled R if the sticker is on the correct side, OR 1st generation Tecate if it's not because of the 3-bolt brake disc hub. It's 6 inches longer than a stock '86 Tecate axle.
It's gold, and judging by the sticker color, I'd say it's an old school Heavy Duty +6" or so.