If your planning to install a cooler, you might lose some fluid anyway, so put your cooler on and check it again.
If you didn't notice any fluid dripping out the vent on the trans I would say your probally ok. But I wouldn't drive it to much until you put that cooler on or drain a little. Hope this helps. Good Luck!
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2004 Hummer H2 " Metallic Red "
20 inch Mojave's (Teflon)(325/60/20) BFG A/T's
MagnaFlow kitty back...Hypertech Tuned..Music to my ears
HCMI Member 50043