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Discussion Starter · #1 ·
I've got an '05 duraburb (LBZ) with cooling issues while towing my camper. it cools fine on relatively flat ground, even during summer temps, but this fall travelling over the rockies it was continually over heating, both engine and tranny. once it got hot i could pull over and idle for 20 minutes and temps would drop to normal. i didn't build it but i am guessing the LBZ crammed into the burb's engine compartment, and stock coolers just can't keep up at high loads.

looking for recommendations on aftermarket radiators and tranny coolers.
 
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