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Richard,
If you did want a tongue scale, most are made by the
Sherline company, although they may be marketed under different names.
Probably the best price for the original, or rebranded Sherline, can be found
here, at the ProPride hitch store.
Your tow vehicle is probably well suited to your RV, but it is quite a large TT for any truck. If you have to pay to upgrade your hitch anyway, you might consider a
ProPride. This hitch and, the earlier
Hensley, are different than all the other ordinary WD (weight distributing) hitches.
The Hensley 4-link geometry design has superior stability control over the friction sway control types, possibly exceeding even that of 5th wheel trailers on a windy day. The newer ProPride brand is a little heavier duty than the original Hensley, especially for over 1000#'s tongue, although both are rated for up to 1400#'s. Both were designed by the same ingenius man, Jim Hensley. These ultra-safe hitches cost more, but they hold their value better at resale, mitigating some of the up-front cost.
I'm currently using an older Hensley, but I'm quite familiar with the ProPride also, if anyone has further questions.
Wes
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