Forum Discussion
mobeewan
May 20, 2018Explorer
I came across some info a few years ago regarding a rule of thumb for tow vehicle wheel base vs travel trailer length. For a 20 foot trailer your TV needs 110 inches of wheel base. Then for each additional 1 foot of trailer your TV need 4 additional inches of wheel base.
The above is only length and does not factor in weight which varies hugely with trailers of the same length.
To the OP. With a 116 inch wheel base that limits you to a 21 foot trailer. Considering length only and probably no sway control. Even with dual sway control you'll still need a longer wheel base for the difference between 21 ft and the 34 foot length of your trailer.
I'm towing a 28-1/2 footer with an empty weight of 4600 lbs and cargo capacity of 2000 lbs and a TV with 155 inch wheel base and Equalizer brand WDH. I haven't had any problems with sway, even with multiple trucks passing me.
I had a 1991 Isuzu Trooper that I towed a used 17 foot TT with. The first time I towed it loaded I was on I95 north of Richmond Va and was passed by 3 semis. By the time the third was passing me I was swaying so bad I was about to jack knife and would have if it hadn't been for using the manual switch on the brake controller and keeping my foot off the brake to straighten me out. After that I was grabbing for the brake controller every time 2 or more semis would pass me. I was so glad when I got to the exit at Fredericksburg. I learned real fast about too much trailer and not enough TV.
The above is only length and does not factor in weight which varies hugely with trailers of the same length.
To the OP. With a 116 inch wheel base that limits you to a 21 foot trailer. Considering length only and probably no sway control. Even with dual sway control you'll still need a longer wheel base for the difference between 21 ft and the 34 foot length of your trailer.
I'm towing a 28-1/2 footer with an empty weight of 4600 lbs and cargo capacity of 2000 lbs and a TV with 155 inch wheel base and Equalizer brand WDH. I haven't had any problems with sway, even with multiple trucks passing me.
I had a 1991 Isuzu Trooper that I towed a used 17 foot TT with. The first time I towed it loaded I was on I95 north of Richmond Va and was passed by 3 semis. By the time the third was passing me I was swaying so bad I was about to jack knife and would have if it hadn't been for using the manual switch on the brake controller and keeping my foot off the brake to straighten me out. After that I was grabbing for the brake controller every time 2 or more semis would pass me. I was so glad when I got to the exit at Fredericksburg. I learned real fast about too much trailer and not enough TV.
About Travel Trailer Group
44,029 PostsLatest Activity: Jan 13, 2025