The "weak" links on any front Dana 60 are stock 30 spline stub shafts,stock u-joints and locking hubs.The rest of the 60 front end is nearly indestructable on a 4cyl Toyota truck.
you can replace the outer stub shafts and u-joints with some Spicer 35 spline stubs and upgraded u-joints
for around $200.00....highly recomended.you can run any tire size you want after that without much worry.
do it and never look back... 
I went all out with 35 spline chrome moly inners & outers,300m u-joints and Warn drive flanges..
i'm running 42's without any worries and some bad ass "welder built" steel fabricated knuckles... 
Bling...I guess pimpin aint easy! That looks very nice, and I bet it performs like a champ!
