Like Seann45 said test it first.
When you do test it, make sure your monitor is in the truck where you will be keeping it, engine running to ensure that there is no engine noise interference with the monitor/signal. and the camera is temporarily somewhere behind the TT.
With my license plate camera I only made it 3/4 of the way back to the TV before the signal started fading, and next to no signal when I was in the TV.
2013 Jayco Eagle 284BHS
250Watt Grape Solar Panel, MorningStar MPPT 60 Charge Controller
1500 Watt Ramsond PSI, 2 Trojan T145 Batteries (260Ah)
2 - AirSight Wireless IP Cameras (used as rear view cameras)
EnGenius WI-FI extender, D-Link wireless (n) modem
MagicJack Internet Phone
2012 Ford F150XLT, EcoBoost w/3.73
157" Wheel base, HD Towing Package
Our Solar Album http://www.jaycoowners.com/album.php?albumid=329