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Old 03-20-2018, 10:07 AM   #1
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Tow hitch for 1550/tire size

Dealer says I donít need a load leveler, just sway control, also What size tires are standard on T1550? thanks, Mike.
(Ď13 Expedition is tow vehicle. )

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Old 03-20-2018, 01:17 PM   #2
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Hi Mike,

What model year 1550? They may have changed the size along the way.

The older brochures use to list the tire size. On the top of the forum are tabs. Look for the one called FILES. That is a hot link. When logged in, go in there and look for brochures. Then look for your model year and download a copy.

The older brochures list the old tire sizes. They can be converted to the new tire sizes. Many online lists which show the conversion. If you need help, let us know.

Hope this helps


PS, Odds are high you are going to need a good sized drop shank or drawbar to get down low enough from the Expedition to the trailer ball coupler to tow the camper level. If the trailer is still set at its original height, that could be 16.5" ground to ball coupler. I just helped another member on this on her 87 T1550. She has a smaller truck but the same height problem. Hitch height on page 3. See here

Current Sunlines: 2004 T310SR, 2004 T1950, 2004 T2475, 2007 T2499, 2004 T317SR
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Old 03-20-2018, 10:28 PM   #3
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Assuming it hasn't been modified,

1986 and older 1550s are most likely 13", using a B78-13 tire or an ST175/80/R13 in a radial.

1987-1996 should have a 14" wheel, with ST205/75/R14 LRC.
2007 T-286SR Cherry/Granola, #6236, original owner, current mileage: 9467.8 (as of 5/26/19)
1997 T-2653 Blue Denim, #5471
1979 12 1/2' MC, Beige & Avocado, #4639
Past Sunlines: '97 T-2653 #5089, '94 T-2251, '86 T-1550, '94 T-2363, '98 T-270SR
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Old 03-21-2018, 06:10 PM   #4
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John, its an ‘86. Appreciate the references & info, and all the Sunline owners being so willing to help us learn. Will let you know how I make out. Mike
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