HEY I GOT A 1995 GMC SUBURBAN 1500 WITH 4WD AND I HEAR A RATTLE UNDER THE CAR BUT CANT FIND ANY LOSE THINGS ON IT AND I WAS WONDERING WHAT WHEN SOME CHEVROLET SUBURBANS COME BY YOU HEAR A ODD NOISE FROM THE TAIL PIPE ANYONE GOT A BURBAN YOU CAN SEE ME ON MYSPACE
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It could be the exhaust is loose....try shaking it and see if it moves. If not there are a ton of things a noise from the rear end could be, you'll have to be more descriptive or see if you can pinpoint it to one spot.

its in the front of the car kinda under the motor and driver/passager area is and whats with the puddels of anti freeze in the motor drivers side undr the hose from radiator?

Sounds like a heatshield rattling maybe?

Sounds like your rad's leaking... try and locate it... whether it's the actual rad, or hoses, etc....