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Today on our 2005 Chevrolet Avalanche, we'll be installing the Derale Transmission Cooler,
part number D12906. We'll also be using the Derale Universal Mount Kit, part number D13002
and the GM Radiator Adaptor, part number D13035.Now our truck has had some modifications so the
removal of the grill is different than normal, so we will not be showing it. With our grill
out of the way, we'll go ahead and test fit the cooler.After finding a good spot for our
cooler, using a couple of bolts and nuts we purchased separately, we'll attach the Derale
brackets to the cooler. At this point, we want to leave the brackets loose until theyre
mounted to the vehicle. We can go ahead and attach the rubber line to the cooler as well
using two of the worm clamps. It also may be necessary to use some transmission fluid
as lubricant to get the line around the fittings.We can now tighten down the worm clamp securing
the rubber line to our cooler. We will then place our cooler in its location
and using a couple of self tapping bolts, we'll mount the cooler braces to the A-brace
here on the truck. We'll do this on both sides. We can then tighten the brackets to the cooler.
Now our cooler is secure and were ready to run the line. Going around the radiator, we'll
pass
the line through here to the factory cooler.Next, we'll need to identify the downstream transmission line.