RDS Diesel Install Kit for Auxiliary Diesel Fuel Tank - Fits Chevy/GMC Trucks 1999 - 2010, Model# 011029
Great product - but expensive
I purchased this kit to install a Tradesman 37 Gallon auxiliary fuel tank. Took about 15 minutes to install. The only additional item I needed was a 1/4 to 1/2 inch adapter to go from my tank to supplied adapter.System works flawlessly with no leaks. The unique "float valve" prevents overfilling the main tank while keeping the main tank full. Just never mess up an open the main fuel cap while transfer tank is turned on .. almost made that mistake. Installed in a 2008 Chevy 2008 2500 Duramax Diesel. All you need is a good cutting tool to cut the main fuel line and 15 minutes later I was completely done -- that included the hole I had to drill in the bed for the pass thru...
One last thing I will mention though - there is probably only about 10.00 worth of parts in this thing -- rubber hose - couple of clamps - and a T adapter with a float - but hey - there's no alternative and I needed it - so besides the ridiculous price - I still give it a 5/5
June 3, 2014
Simple, effective kit
Purchased this kit to install an RDS 91 gallon fuel tank/toolbox combo. Took about 15-20 minutes to install. Ran the supplied fuel line from the auxiliary tank to the supplied adapter that ties into the 2" main tank fuel fill line. System works flawlessly with no leaks. The unique "float valve" prevents overfilling the main tank while keeping the main tank full. Installed in a 2006 GMC SLE 3500 Duramax Diesel.
May 12, 2014
Very Easy kit to install. Probably won't take 30 min.
February 4, 2014
Easy Installation, Simple Operation
My kit for my 2001 2500HD didn't have the 2 sleeves shown in the photo. Very easy to install. I completed the entire process in 65 minutes including a couple interruptions. In my situation I had to remove the 3 screws that hold the fill tube behind the filler door and drop the neck down in order to complete the cut of the hose. My filler hose had a plastic pipe inside the rubber fill tube that apparently dumps the fuel to the center of the tank. Not sure the benefit of that but it added a few minutes to the install time. I had over 3.5 feet of fuel line left over. I would suggest that you clean the outside of the fuel filler hose before making the cut. Mine was covered with dried mud and the stuff you find in cow pastures.
There's a small ball crimped into the bottom of the elbow. When the factory fuel level drops, the ball drops and fuel flows into the stock tank. When the factory tank is full, the ball rises and blocks the flow from the auxiliary tank. Very simple and uncomplicated operation, sort of similar to a shop vac. The key to success is to mount the elbow as close to horizontal as you can.
After installation was complete, I drove to town and filled the factory tank then put 12 gallons in the auxiliary tank to test for leaks. I drove around for a few miles then drove home and let it sit with the valve open for a few hours. No leaks.
My only regret is that I didn't do this years ago. Based on my average mpg when towing my 5th wheel I should now have a range of over 500 miles
November 16, 2013
Hooked it up in about ten min. Everything you need hose and clamps . You just need a knife and a screwdriver
August 13, 2012
RDS Diesel Install Kit for Auxliary Diesel Tank
I ordered this Diesel install kit and it is very simple and easy to hook up. I was worried about leaving it on for fear it would over fill my tank, but it works properly and keeps the tank topped up with no issues. I was able to go three times further pulling a heavy load and am very pleased with this kit.
May 7, 2012
The install kit worked great . It was fairly easy to install. The only thing that surprised me was there was a inner tube when I cut the filler hose to splice in the fitting for the install kit. I just spread it apart enough to install the fitting. Everything works as advertised.
October 11, 2011
Diesel install kit
I installed this kit on my 05’ Chevy truck; it took no time at all to install. I cut the fill hose with a sharp utility knife that work great. On my truck if you go 150 miles without stopping the gauge will go to zero and stay there until you start to drain off your main tank or stop and start your engine again, which seems to reset the system. Once I installed the adapter I have never shut off the valve and never had a leak, but make sure you fill your stock tank first and install the cap before you start to fill the auxiliary. I pull a mule trailer out west once a year and this makes traveling at night much easier than trying to find a station that is open.
June 25, 2011
This product was easy to install. You will need some sort of sealer for the valve connection into the tank. I used gas line thread tape (the yellow stuff) and after a month, its still holding strong with no leaks. I recommend turning off the valve most of the time. With Chevy trucks, if you leave the valve open on long trips the fuel level sensor will freak out and flip your gas gauge to empty. If this happens to you, just turn the valve off and drive for awhile. When you shut the truck off, and turn it back on, everything should be OK again.
June 8, 2011
Really nice to have
The kit to hook up a aux fuel tank is easy to install. I only had two problems with it. It gives positive pressure inside the fuel tank all the way to the engine. If you change your fuel filter, close the valve and run off the fuel that is above the filter. This way it won't come pouring out. The other thing it is doing if the valve is open with positive pressure, the fuel gauge will read empty at times. Don't know why, but if the valve is closed and the main tank is allowed to drop, the fuel gauge is fine. I will get one for my next truck.
June 5, 2011