If you want a cheap dual case adapter that won't last long, then buy the one that comes with a "special retainer ring".
Regards,
BigMike
While I agree that without a doubt marlin crawlers adapter is superior in every way this statement isn't true. When I was building my truck I got an awesome deal on a tg adapter so I ran it. Now with over 20k miles and 30 wheeling trips on it it's still holding up just fine.