Choice of reese Hitch system
If I understand your questions, you are referring to the receiver that mounts to your tow vehicle. So long as it has a standard 2" square receiver and is rated for the weight of your trailer and its tongue weight, the Reese hitch head should work with the hitch. The hitch on my '75 Cadillac has a "generic" Reese equivalent system. The receiver on my Suburban is an OEM GMC item that was part of the factory equipment.
The important part is to have the Reese hitch head and properly matched spring bars (weight distributing bars). The Dual Cam system will be much easier to setup if the hitch head and bars are both Reese - - some bars and hitch heads from other manufacturers will work, but it is not always possible to know what will work and what will not without expensive trial and error.
Kevin D. Allen
WBCCI (Lifetime Member)/VAC/Free Wheelers #6359
1964 Overlander International/1999 GMC K2500 Suburban (7400 VORTEC/4.11 Differentials)
1978 Argosy Minuet 6.0 Metre/1975 Cadillac Eldorado Convertible (8.2 Liter V8/2.70 Final Drive)