Weighing for CG

[GMracer]

I have access to a stock truck which is basically the same thing as my truck now just not as low, and since my project isn't done I was wondering would it be safe to weigh this one to get an idea of CG or does the height really change to calculations that much being that this truck is about 5" higher off the ground? I still plan on setting up adjustable brackets, but I wanted to get it close.

This is just finding the weight, the rest I will be able to figure out on paper.