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  1. Jeffmc306

    Dc to dc charging tie into 3500 battery/alternator

    The reason I pulled the fuse vs. disconnecting the trailer’s power so I can use it to power the trailer’s running lights at night when at a rally. All you do is insert a blade fuse between the 12V positive and the running lights terminal on the trailer’s 7 pin plug. I taped the fuse to the...
  2. Jeffmc306

    Dc to dc charging tie into 3500 battery/alternator

    Yep! You’ve got the right one. F30 is the 7 pin charging fuse.
  3. Jeffmc306

    Towing with new 6.4L

    Pittboss44, this is a constant thread on trailer forums. Do I or don't I need a WD hitch with a HD truck? In my experience it's not the WD part as much as the sway control. We tow a 27' Airstream that's around 6600 lbs. with a RAM 2500 6.4 and use a Blue Ox SwayPro with 1000# WD bars. I don't...
  4. Jeffmc306

    Shocks

    I installed four 4600’s and a set of SumoSprings on the rear. We tow a 27’ Airstream trailer and I noticed an immediate difference when going over bridges or overpasses with a dip. The truck is much more planted, no rebound like before. You used to have to hang on the steering wheel to make...
  5. Jeffmc306

    Dc to dc charging tie into 3500 battery/alternator

    Disconnecting the 7 Pin is recommended if you’re charging Lithium batteries due to the higher voltage charging profile. If you’re charging lead acid which are the same as your truck, it’s not a problem. Just make sure you follow Renogy’s instructions on pg. 18-19 in the manual regarding the...
  6. Jeffmc306

    Dc to dc charging tie into 3500 battery/alternator

    Henrys, the problem is lithium batteries have a different charging profile than the AGM / Lead Acid batteries in your truck. You need a DC-DC charger that can provide the correct voltage in the bulk/absorption stages and float. For example, Battle Born states you need 14.2-14.6V in...
  7. Jeffmc306

    Dc to dc charging tie into 3500 battery/alternator

    Great information on this thread. I installed a Blue Sea Systems Single MRBF Terminal Fuse Block - 5191 and a 60A fuse for my Renogy 40A DC-DC charger in our Airstream trailer on the 8MM stud. I pulled two 4 ga. welding cable to the bumper and terminated it on an Anderson SB120 connector...
  8. Jeffmc306

    Towing with new 6.4L

    Redcold, something doesn’t smell right with your results. Yes, that is a big, heavy trailer but I’d expect better mileage. That said, your observation of 3500 RPM’s is telling - and an indicator the truck is working hard but 5 MPG is really low. I mean that’s TFL Truck IKE world’s toughest...
  9. Jeffmc306

    Towing with new 6.4L

    Actually we didn’t drive around much unhooked - camped with friends and they drove the few times we went out for groceries. I’d say less than 200 miles were unhooked over the course of the trip. I hand checked mileage periodically and found it was within a half MPG. In flat areas we were...
  10. Jeffmc306

    Towing with new 6.4L

    We made the trip from Northern Illinois to Acadia NP in Maine then on to the International Airstream Rally in Fryeburg, ME. Three thousand miles round trip, averaged 11.1 MPG towing our 27’ Airstream Globetrotter (around 7200 lbs.). The 6.4 2500 & 3.73 gears handled it with ease. Was very...
  11. Jeffmc306

    Firestone Transforce AT Tires Are Useless

    My thoughts exactly - I wanted them to work out but after two winters and spinning the tires in wet, I did not want to chance it. The Michelins and others mentioned by others handle adverse conditions better than the Transforce AT’s. They were tolerable in dry conditions but the pucker...
  12. Jeffmc306

    Firestone Transforce AT Tires Are Useless

    It rained the other day and the tires spun pulling out into traffic. We’ve got camping trips planned for each month from May to October and I didn’t want to chance an accident pulling the trailer. So with 14,700 miles I had Discount Tire replace the Transforce AT’s with Michelin Agilis...
  13. Jeffmc306

    Lets see what you are towing!

    So my son asked if he could tow our Airstream with his Hemi Challenger Scat Pack ;) Recent trip to Cheyenne Mountain State Park near Colorado Springs. It’s across from Fort Carson - you can hear Revile in the morning!
  14. Jeffmc306

    Lets see what you are towing!

    Very nice combo! Is that a 25’ Rear Bed Airstream?
  15. Jeffmc306

    Lets see what you are towing!

    Thanks Hoff! Can’t wait to get out there and enjoy it again.
  16. Jeffmc306

    Lets see what you are towing!

    Burn’n Oil, thanks! The Coupler Vault has been fine so far. I’m not sure if it would prevent theft but it at least makes someone think twice or maybe move on to one without protection.
  17. Jeffmc306

    Lets see what you are towing!

    jsalbre, thanks! We’d love to meet you guys sometime on the road or trails. Did you get a chance to visit the factory during production? Although, come to think about it, they moved to the new plant in January and I’m not sure if they resumed tours. We were lucky enough to visit Jackson...
  18. Jeffmc306

    Lets see what you are towing!

    Our 2019 RAM 2500 6.4 and 2019 Airstream 27’ Globetrotter will be seeing more travel this year - my last day in the office is April 3 after 36 years with the company. Made a run to Colorado last August and Door County, WI in October. The combo did great.
  19. Jeffmc306

    Vehicle MPG gauge

    I remember seeing the RAM Rebel 1500 fuel economy run by Andre at FLT and just checked his results. Computer displayed 16.7 for 98 miles; pump measured actual was 17.9 MPG "Your mileage may vary" (really)...
  20. Jeffmc306

    LED bar to aux switch install

    AFF, here's the FCA Commercial Vehicle Team Auxiliary Switch document that explains how they work. Hope that helps! Jeff
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