Does anyone know where the serial number is on a 1979 25 ft Hi Lo?

Usually a placard street side (Left or drivers side), sometime stamped somewhere on the "A" frame, (maybe painted over) and if original cabinets, inside one of those doors. Mines on the door under the sink. Hope this helps. Welcome to the forum!
Tree

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Treeclimber
2703 Tow Lite
2002 Escalade
Bonita Springs, Fl. &
Andrews, NC

Thanks, checked most of these spots. No luck so far.

On mine,84, I found on top of the A frame, right side, almost in the center. Scrape all paint off it is easy to not see

Ed; Where are you located? Richmond Va or Richmond? What are you Towing your HiLo with. A lot that has to do with needing a sway bar is the size of the HiLo and the vehicle you are towing with.

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Jim L & Faye
2805C
2003 Silvarado diesel crew cab
2017 Silvarado, crew cab 1500 6.2L gas w/ 8 speed tranny
central VA

I am in Northern Ohio. 2006 Dodge Ram 1500 with a 5.7L. Still cannot find the serial number.

Call these guys in Mt. Vernon, OH. They were the Hi-Lo warranty repair shop and probably know where every serial number was located over the years.
Home - JR REPAIR

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My Great Wife Joyce
2018 Jayco Jay Flight 21QB
Formerly owned 1705T and 2310H
2012 F150 4X4 SuperCrew EcoBoost w/Leer Cap
Reese WD Strait-Line Hitch
Amateur Radio K3EXU

I think that I found it. Inside the hot water door outside access. Cannot open it unless the top is up

Attached Images

20180929_121645.jpg (138.4 KB, 16 views)

That doesn't look like a Hi-Lo VIN to me. That's probably for the water heater.

__________________
My Great Wife Joyce
2018 Jayco Jay Flight 21QB
Formerly owned 1705T and 2310H
2012 F150 4X4 SuperCrew EcoBoost w/Leer Cap
Reese WD Strait-Line Hitch
Amateur Radio K3EXU

Thanks Rich, I'll give them a try. No luck finding it unless it is under the propane tank support or under the stabilizer bar mount.

It's probably in there somewhere.

__________________
My Great Wife Joyce
2018 Jayco Jay Flight 21QB
Formerly owned 1705T and 2310H
2012 F150 4X4 SuperCrew EcoBoost w/Leer Cap
Reese WD Strait-Line Hitch
Amateur Radio K3EXU

Michigan BMV accepted the number in the photo. The owner died and the son was selling it. He could not find the title and they only keep records on inactive trailers for 10 years. The lady at the BMV did a search and said that the VIN was short back then and ran a check to see if it was stolen. Turned out to be a lot easier than I thought it'd be.

Glad you were able to get your trailer registered. We are here to answer any questions you may have.