I've never seen 4.56's on anything but a V6 w/ 31's stock, so I'd be willing to bet yours is a 4.10

My .02


94 4Runner 3.slow-5spd, 4" coils, 1.5" BJ spacers, 2" BL, 35x12.50 Nitto's, 5.29's with a front Lockrite and a rear Detroit; 250k miles and lots of offroad time...and by offroad I mean on jackstands.