Hi, the new terra tires look really great!!

I have been in a situation where my budget is very limited and still considering getting either the

BF Goodrich All Terrain TA KO
LT265/70R-16/D1 RWL cost $762 to get installed and everything

or

BF Goodrich All Terrain TA KO
LT245/75R-16/E1 RWL cost $632 to get installed and everything

Now my last question is, do i have to trim my Vx to fit these? anything else i have to be aware of before getting myself spend more money which I try to avoid.

I have been reading most of the tire posting that are here, very helpful and decided to go with these tire however, i ma very new to the Vx stuff and still learning from this forum which has been resourceful and all.
Cheers

Kuba