Amending path1's Roadmaster link:
http://roadmasterinc.com/vehicle_guide/tow_bar_brackets.phpIf you want to use the car's tail lights instead of the Mickey Mouse ears on the trunk you'll need a tail light kit similar to
one of these.
Parts list (each item purchased separately):
Tow Bar
Base Plates
Security Cables
Tail Light kit (security cables may be included)
If you buy new and have a shop perform the installation, your out-the-door cost will be anywhere between $2,300 USD and $3,000 USD. The $700 difference usually accounts for the shop's labor rate/install time for a given vehicle, and if you buy a higher-end tow bar. A higher-end tow bar can add $200 to $300 to the total cost.
Note: it is possible to mix-and-match different brands of base plates and towbars.
Example. I recommend against buying used base plates. There is no easy way to know how much metal fatigue they may have endured.
There are towbars that can utilize an integrated external surge brake. If your tow bar requires a separate braking system and you don't choose an external surge brake, expect to budget at least $1,000 , just for the braking system.
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Now the fun part....
Does your coach have a rear sway bar/trac bar?
Does it have the OE front sway bar?
Does it have a steering stabilizer (as opposed to a steering damper)?
When towing the rear sway bar/trac bar is highly recommended.
Replacing the OE front sway bar with a heavy-duty one and replacing the OE damper with a stabilizer may be recommended.
In my case the steering damper was leaking fluid. Switching to a Safe-T-Plus made a big difference. Each of the above, if bought new and installed by a shop, should have an out-the-door cost of about $450 USD to $500 USD for each one.