tranny tool for 300?

Can anybody tell me if there is somekind of site or stoe that i can buy the tool to check my transmission fluid instead of going to the dealer?

No place sells it yet. Having the dipstick won't help anyway. You have to monitor transmission fluid temperature to determine how high the fluid level needs to be.

You can get it from Miller tool whom makes Chrysler's specialty tools and they do have a phone number to call them