First step is to drain the radiator. The petcock is at the bottom of the radiator on the drivers size, its an 18mm. Get used to this, you will need to do it 4 more times.

 One of the more popular right ups uses a 5 gallon bucket to drain the coolant into with the truck jacked up, or use a kid’s plastic swimming pool to collect it. We used a 5 gallon drain pan that I had and then poured it into a 30 gallon trash can. Ill get rid of it later. Another step in the write up is to use a flush kit that T’s into the heater system and attaches to a garden hose. We did not do this.

Another step in the write up is to remove the thermostat and just put the housing back on to let the coolant cycle in between draining and adding water. If you do that water will pour out, unless you have an extra gasket or make one with silicone. Jeff cut the stock one up and reused the gasket to get by.

Now you just fill with 4 gallons of distilled water and run the engine for a few minutes. Make sure the heater is on full heat also. Drain the radiator then refill. We did this 4 times, each time the coolant drained out had less of a green tint. On the last drain it was clear.

Now its time to mount the coolant filter. The dieselsite kit comes with a mounting bracket that mounts over the radiator mount using studs provided with the kit. The filter head is then bolted to the bracket.

When ordering the kit you can get it with shut off valves to turn off the coolant when changing filters. I decided to use my own.

This is what Jeff calls the closed loop setup. We decided to go with an open loop, it cleans better than the closed version.

The finished product. About 6 hours of work, draining filling, draining, filling, etc.. etc.. then installing and plumbing. Eventually we will be adding a coolant filter to dads 6.0