Battery Isolator to Use on Promaster Van with 220 Amp Battery with 100 Amp Auxiliary Batteries  

Since your 2014 GMC Sierra 1500 has a 150 amp alternator, I recommend the Redarc Smart Start Battery Isolator item #331-SBI212 which is rated at 200 amps. You always want to go with an isolator that is rated for higher amps then your alternator to…

You will need a battery isolator, like Battery Isolation Solenoid, part #PK5231201, if you plan on leaving the trailer connected to the truck when the truck is off. If you unplug the 7-Way, the trailer battery cannot drain the truck battery. If you…

As long as you get the voltages to match up correctly you can add a 12 volt battery to a battery bank with the TorkLift HiddenPower Under-Vehicle Battery Mount with Battery Box #TLA7740. The key is knowing the difference between running the batteries…

In order to prevent draining your main battery when using an inverter at night, I recommend using the Deka Battery Isolator, #DW08771, with the TorkLift HiddenPower Under-Vehicle Battery Mount with Battery Box, #TLA7740, (battery not included). The…

The problem with using 7-way wiring for a headache rack is that there isn't a dedicated stoplight circuit so if the rack has a third brake light you won't find the correct circuit at this harness. The turn signals, running lights, and reverse…

The Hopkins 5th wheel wiring harness #HM42137 acts as a T-connector. It will provide a 7-way trailer connector in the bed of your truck while retaining the one at the back too. This fits all 2008 Dodge trucks with factory installed 7-way connectors.

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

The OEM prep package consists of 4 "pucks" in the bed of the truck that will allow you to drop in puck style hitches for easy installation and removal, that gives you a completely clear bed when not in use. The B&W Companion OEM 5th…

There is only one difference between the Curt Trailer Hitch Receiver #C13176 and etrailer Trailer Hitch Receiver #e98909 that fit your 2020 Chevrolet Colorado, which is the finish. The Curt trailer hitch has a glossy black finish while the etrailer…

Well James, I can say with 100% certainty that what you are seeing and experiencing is NOT normal. However, this is not the first time we have heard of this occurring. To answer your first question, it was corrosion that caused it. To be more…

You will have to go with a sliding hitch to allow the trailer to make tight turns. For a trailer 8 feet wide the only bed length that's going to allow 90 degree turns without a slider is a stationary hitch. That being said you have two options.…

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.