To the best of my knowledge there aren't 4:10's available for 5th gen 4Runners.
Sadly.....no 4:10's exist yet.:ballchain:
ECGS website has 4.10 listed for both E-locker and no E-locker diffs. Is this just a mistake?
Toyota Gear Package
Toyota Gear Package
They even have a 3.90 option for the front clamshell here which is a perfect match for 285/70R17, but unfortunately a 3.90 option doesn't exist for the rear yet.
Tacoma/ FJ Cruiser/ 4Runner- 8" Reverse Clamshell Assembly
For some reason they don't have 4.10 listed for the rear 3rd here though...
Toyota 8.2 Elocker 3rd member- FJ Cruiser / 4runner
So my guess would be there are 4.10 gears, but for some reason they don't build rear 3rds with them too often?