Dude, have some patience. I told you in an earlier post that it is a bad idea to order G4 parts from Trinity. Right now your best bet on parts in the USA is http://www.rcnutshobbies.com
. Go to his site and email him. If he has the parts (most time he does) he will get them to you within five days.
Second choice is The Border or any other website in Hong Kong that has G4 parts. Trinity would be last on my list of places to order G4 parts from.
I was attempting to order some universals for the G4 last week and he was out. He might have them this week or next week though.
A car like the G4, it is best to order parts ahead of time if you know that it wears down or if you break a part more often than others. Some cars doesn't have the luxury of having LHS support. If you just gotta race every week or day. You should get a car that your LHS supports and has lots of parts for.
At my LHS, MTX-3 is the car of choice and he has lots of spare parts.
Here are a few links that carries G4 parts.