One item I didn't see in prior replies, if you have a dual-axle trailer, is a tandem tire changing ramp (several manufacturers out there). You just drive the same-side good tire onto the ramp which lifts the flat tire from 4" to 5" depending on model. In my experience, trying to get 4" of axle lift that my FW required was a lot of work with my compact bottle jack. And it is a LOT faster than using a jack.
Jayco '18 Pinnacle 36FBTS, '14 Ram 3500 DRW crew cab long bed
6 way screwdriver, channel locks, hammer, hatchet, cordless drill, and all that other good stuff that's listed but also hose washers, tie wire, hose clamps, fix a flat
Toyota Tacoma crew cab w/ tow pkg.
wife and Gracie the wonder dog
Great tool lists, but I consider my battery Delco impact/torque driver & socket my most valuable tool. When on the road I check the wheel lugs every couple of days for recommended torque, as well as the single locking bolt on the 5th wheel hitch. A 5 minute check I can do, but theres no fixing a wheel that comes off enroute.
For the smaller trailers, have a complete spare hub assembly greased and ready to swap. It is about as cheap as buying the spare bearings and definitely a lot easier to swap out on the side of the road on a hot summer day.
I dont think Im going to do this, I dont know of anybody else who does this either...
Sorry but could not limit it to just 10. Only a few over 10.
1. Pancake Air Compressor rated at 150 PSIG with hose and Tire Inflator with Pressure Gauge
3. Low Profile 20T Bottle Jack
4. 1/2 Drive 24 Breaker Bar with 2-1/2 Extension and Deep Socket that fits RV Lug Nuts
5. ACDelco ARM602-4 ½ Digital Torque Adapter to torque lug nuts
6. Tape Electrical, Duct, Foil Tape and 4 RV Rubber Roof Repair Tape
7. Misc sizes of Screwdrivers: Phillip and Slotted
8. 3/8 Socket Wrench with sockets: typical 3/8 thru 9/16
9. 1/2 Sockets to fit Hitch bolts and Spring Shackle bolts
10. 1/2 and 3/8 socket swivel adapters
11. 3/8 thru 9/16 Combination Wrenches
12. Zip Ties
Something I just got yesterday was 6 Dickies canvas tool rolls. If you need the tools everyday they're not real convenient but for tools you don't use very often they keep them organized and they keep them from banging together going down the road. Believe it or not I got them from Sears for $12 each plus shipping. Since I counted 118 wrenched I'd like to carry I think I'll have enough for all of them and some other stuff like screwdrivers and ratchets.
Now how do I carry 150 or so sockets? Don't worry I'll figure it out, I'm thinking about some boards with a bunch of holes drilled in them, maybe some of the 1/4 turn holders mounted on a board and a box built around them. Tool chest have way too much wasted space.