Hi there optocop
Congrats on your new Jayco 1206. Below are a few things to keep in mind:
Brakes & Controller: Based on Jayco URL, I see the 1206 comes with Full electric brakes. And, its weigts are (dry 2,300) - GVW (3,450). When calculating "loaded" weights, I'd use the 3,450 lbs number. With this in mind, I would ensure the Tow Vehicle has an Electric brake controller. And, it's a "Proportional sensor" Brake Controller technology - Like the Prodigy P2 or P3 models. Personally, I'd never by the "Time Delay" Brake controller again. IMO: Time Delay should be illegal and pulled from all store shelves. But, that's a topic for a different thread. For more details of P2, surf:
RV Wholesalers Parts Store
Transmission Cooler: Most fehicles with automatic transmission coolers are built for "average load" (NOT towing) cooling needs. For towing, majority of base vehicles will need cooling upgrades. re: An aux ATF cooler must be installed. If installing an aux ATF cooler, I would focus on the LPD (LowPressure Drop) design. And, I would pick the size rated for an attached 5,000 lbs trailer. (aka: With combined 24,000 - 28,000 lbs range) Especially when the aux cooler is the most front rad. For good brands, I would research Tru-Cool or Hayden brands. re:
http://www.transmissioncoolers.us/M...ct_Code=4590&Category_Code=trucool-coolers-hd
http://www.transmissioncoolers.us/M...de=1678&Category_Code=hayden-transaver-cooler
My Tow Vehicle:
Summer:
http://i178.photobucket.com/albums/w251/Spike99-Pictures/Montana Van/SummerRAD-1.jpg
Winter:
http://i178.photobucket.com/albums/w251/Spike99-Pictures/Montana Van/WinterRAD-2.jpg
TV's Hitch size. Assume the loaded Jayco is 3,500 lbs and one loads their PUP with 15% tonque weight, their PUP's "estimated" tonque weight is 525 lbs. Ensure the Tow Vehicle's hitch can support up to 5,25 lbs. re: Possible a Class IV hitch many need to be installed as well. Note: Always best to "scale weight" the PUPs tonque weight and "average" loaded weight. And, to ensure the PUP is loaded with Tonque Weight between 13%-15%. Loading outside these numbers can create uncontrollable sway or loose of traction on sharp corners.
TV's rear suspension improvement: I hear many Pups cannot have a WDS (Weight Distribution System). When connected, the rear of the Tow Vehicle may sag. Especially if the rear of your Tow Vehicle is loaded down as well. If you want to removed "rear sag" or create a much better ride, one can install Air Bags or Timbren SES units. If wondering, I have Timbren SES units in my previous Tow Vehicle and my new (replacement) Tow Vehicle. For my "install it and leave it" desires, I love Timbren SES units. For more details, surf:
http://www.timbren.com/ses-van-suv.htm
http://i178.photobucket.com/albums/w251/Spike99-Pictures/Montana Van/TimbrenBottomOutsStop-1.jpg
Hope these items help...
Again. Congrats on your Jayco 1206 purchase (and future enjoyment).
.