Funny this thread comes up now, I just bought one of the chain style mounts off of ebay (for $13!) to replace the one on my 84 because i had to cut one of the links to get my tire off after the rust demon deemed fit to make the original one stop working. Just get the replacement mount and bolt it on yourself, youll save a LOT of money.
84 4Runner SR5
22R, 5spd, 31" BFG ATs,custom bumpers
08 FJ Cruiser
Sandstorm, 6MT, All-Terrain Package, Rock Rails, BFG A/Ts