Our Blazer has both a radiator cooler & there is a about 4' of tubing without fins in front of the condenser after the radiator cooler. It is factory & I'm assumming this was a factory cooler it is about four coils. This truck came with the 8 wire trailer conn., 2" reciever, along with this added trans tubing. The light tow package came with only 5 wire conn. as I understand from the owners manual. So I will use basically all 3 coolers.
Thanks