I've been looking at the "RV" GPS units, specifically the Garmin 770LMTS. But the reviews I've seen on Amazon are less than stellar. But, none of the other brands have too great reviews neither. My search on here has had mixed results. Anyone have any suggestions or are these a waste of money compared to your everyday GPS unit like I already own ? Features I'd like are the obvious low bridge, weight limits, and steep grades along the trip. The campground / park info would be nice, but not a deal breaker.

Your search on here probably got it mostly covered. We have this discussion more than driving with the propane on.GPS in heading in tech

We have the Garmin dezl 760LMT which has the option for RV routing and places to insert length, height, etc.I have never made a definitive study of whether the RV option will keep me out of trouble for low bridges, etc.It does seem to route more on major highways rather than taking State roads.One does have to pay attention, however, with the suggested routing and not blindly follow the GPS route. A map preview of the days travels is a good thing.

I use a normal auto GPS and have several files loaded that alert me to low bridges, and other things of interest. It works pretty well, and I don't have any problems with it not wanting to route me over non-truck roads.

We are almost 13 feet tall too. We have the Garmin dezl 760LMT as well. It's not fool proof. We usually do our research before going on our trip by using the Rand McNally Truckers Atlas that shows what highways are safe for Tractor Trailer's (Safe for a tractor trailer, Safe for an RV). Then we map our trip online using google maps, and finally we do the trip planner option within the Garmin using the roads Google Maps has made for us. This method hasn't failed us yet. We also just recently bought RV Trip Wizard so we now can also find campgrounds and fueling locations easily.

I've been all over the US and have yet to come across a bridge too low for passage. I use Google Maps in my phone to plan trips. I also use a hard copy of the Motor Carrier's Atlas (available at truck stops) that shows routes approved for 18 wheelers. Much cheaper way to go than an RV specific GPS.

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fj12ryder
Explorer III
Jun 28, 2018
I use a normal auto GPS and have several files loaded that alert me to low bridges, and other things of interest. It works pretty well, and I don't have any problems with it not wanting to route me over non-truck roads.
Dick_B
Explorer
Jun 28, 2018
We have the Garmin dezl 760LMT which has the option for RV routing and places to insert length, height, etc.
I have never made a definitive study of whether the RV option will keep me out of trouble for low bridges, etc.
It does seem to route more on major highways rather than taking State roads.
One does have to pay attention, however, with the suggested routing and not blindly follow the GPS route. A map preview of the days travels is a good thing.
2oldman
Explorer II
Jun 28, 2018
Your search on here probably got it mostly covered. We have this discussion more than driving with the propane on.

GPS in heading in tech

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