TT tools

What all you decide may be necessary could depend on how long you are going to be out on the road. Right now I am out for four months. Because of that, I want many things to repair or replace just about anything. I have a tool box in the back of the truck all the time anyway, as this is my daily truck at home around the horse stables, so I keep all manner of tools and hardware with me so I don't have to run back to the shop constantly.
Having tools with you that you may not be able to use yourself may in fact come in handy while you are out, because sometimes a helpful person that offers assistance may in fact know how to use it.
If I listed all the tools I have in the truck and trailer, it would be a rather long list. It is one of the many reasons I prefer a pickup truck compared to a car or suv..... I have more capability to carry the things I need to solve problems.
Suffice to say an extensive collection of handtools, a drill, drill bits, and most everything that has already been listed in this thread.

EDIT: Something I am not sure been mentioned, I carry a 8' extend-a-step ( i think thats what its called ) ladder, so I can get up to clean off the top of the slide, or get up and do any maint on roof seams, etc.

I agree with all the posts above. I carry a bit more because I started out in an older TT and found that water leaks can ruin a weekend real quick!!
I carry a few small pieces of pex water lines and the slip style fittings a couple 90 degree and straight also the ones with the nut on the end for the faucets so I don't need to carry a criping tool.
Fuses
tool kit from sears or harbor frieght.
Channel Locks
Small,medium,and large Axe. It is a pain to get a fire started if you can't make kindling or cant find any.
Extra clips for hitch pin.(I take mine off when we get to the campground so I don't walk into it)
Cooking grate for fire so you can cook your burgers and such.
Spare tire 4way lug wrench. Jack as stated above all the things the other folks listed.

Good luck and Happy camping!!!

LED headlamp, stubby bottle jack to change trailer tires, a few short 2x4's for cribbing, bottle of handi-wipes for clean-up, dogbone wrenches, decent mechanics tool set, fuses, cheap blue tarp, parachute cord.

Fuses, grease, duct tape, eternabond, lots of hand tools, spare bulbs.

Most important is the fuses. Seams like I blow 3-4 of them a year.

I bought a padlocked tool box to fit onto my front hitch when towing the trailer. In that box I carry just about all the tools I use at home.

When I need a tool at home or on the road, I know it's in that box.

It weighs about 200 pounds loaded, so I use that weight to eliminate the need for weight-transfer bars. I had previously used such bars to transfer about that much weight to the front axle to compensate for the trailer's hitch weight.

Works for me.

I asked the same question a couple of months ago. Responses varied from a credit card and cold beer to enough tools (including duplicates) to rebuild from the frame up.
clicky

Emergency road service contract and a good credit card for the rest. :W
Barney

One thing everybody forgot.................the extra trailer to haul all that stuff!

For me , stuff to change a tire and a good road service contract.

Don't forget a headlamp! Great for under sink repairs, working under the TT and setting up at night! Use ours all the time

Lots of good advice above but it is really a personal thing. There is no point in carrying tools if you don't know how to use them.

When you do service, mods, or maintenance to the RV at home - use the tools you carry when traveling. You will figure out what you need and what you don't.