Welcome to the forum. I replaced one of the wrap around tail light lenses on my 1999 Classic, and the embossing on the lens says "T. BARGMAN" and "SAE-APC-86". That sounds kinda like the new one you got. Maybe they changed the lights in the 5 years between yours and mine.
In any case, these Bargman light cover lenses are carried by a lot of places online, like etrailer, etc. If you can find a slightly different number on your old lens, it might give you a clue what to order.
1999 22L Classic
2008 Toyota 4Runner V6