Originally Posted by amadorj
I'm looking to purchase a Fun Finder X T-139 which is 3320 GVWR and hitch weight of 220 for the PreRunner 2.7L.
It's 14.9 long and 84" wide and 8'2" tall.
Ok, I looked up your prospective trailer, and here are my detailed and complete thoughts.
First in respect to your rear axle ratio, a point raised by thenrie
. depending on cab/tranny configuration you have anywhere from a 3.91:1 to a 4.30:1 and I am going to assume that you are still running the stock pre-runner tire size since you do not mention bigger tires in your profile. So with something 3.91:1 or greater and roughly 31" tires, it is not your final drive that is going to cause you the problems.
I looked at Fun Finders before buying my Jayco, so I am familiar with the trailer you are looking at, as well as the things that you need to add in to the specs that you gave me.
You prospective trailer is 14'9" long, 7' wide, and 8'2" high. (to the top of the roof. Remember to add 12" to that if you have AC) It has a hitch weight of 230 lbs, and a dry weight of 2107 lbs, and a GVWR of 3330 lbs.
GVWR does not mean what the trailer weight, it means what it is allowed to weigh after you put all your stuff in it. Dry weight is what the trailer actually weight before any liquids, options or stuff is put into it. So now you're thinking wow 2100 lbs "I should be fine."
Not quite to that 2107 lbs you have to add some things. In the case of a Fun Finder quite a few things as their spec sheets are for a totally base unit with no options.
- Fresh water tank 25 gal @ 8.33 lbs/gal = 208 lbs
- Hot water heater tank 6 gal @ 8.33 lbs/gal = 50 lbs
- Single LP bottle 5 gal @ 4.24 lbs/gal = 20 lbs (add this directly to your hitch weight too)
Now you are at 2385 lbs with a hitch weight of 250 lbs. wet, but still un-optioned.
Add to that weight any of the following options if installed:
- Air conditioner
- Spare tire
- Outside shower
- Front overhead cabinets
- Outside BBQ grill
- Dual LP bottles with automatic regulator
I don't pretend to know what all of these options weigh in at, but I suspect that it would put you at close to 2600 lbs wet and optioned. You have a hitch weight of 250 lbs (possibly more depending on where in the coach the fresh water tank and or hot water heater are.)
Now add into that your food, clothing, entertainment, water and sewer lines, camp chairs, dog toys, fishing gear, toiletries, beer... you get the idea.
I'd lay even money that you'd be sitting right around 3000 lbs wet and ready to camp. Your truck has a tow rating of 3500 lbs.
My trailer is 19'11" long 7'6" wide and 9'10" high (to the top of the AC unit), has a dry weight of 3004 lbs, and a GVWR of 3750 lbs. When mine is wet and ready to camp it weight in at about 3500 lbs, and I usually only run with the fresh water tank half full.
I did not feel that my 2004 2.7L was able to safely tow the trailer I bought. (read as, I did not feel it had the power to accelerate to avoid an accident if I needed it to, and would not be able to maintain speed on a grade. Espescially with the air on in the truck, and since camping generally takes place in the summer that was a factor)
The long and the short of it is. You don't need to trust my calculations, or guess at the weight of the options. On the door to one of the cabinets in the trailer will be a weight and capacities sticker. It will give you the actuall as built and optioned weight for the unit you are looking at. Then to that you still have to add your water and propane, and your personal gear.
As long as you have a receiver hitch on the truck any RV dealer worth a damn should let you take it for a test drive (or tow) WITH FULL FRESH AND GREY WATER TANKS!!! Don't worry about weight distribution or sway controll or even trailer brakes for your test drive. What you are looking for on the test drive is if the truck is able to accelerate, and maintain speed and such to your satisfaction. Make sure to attempt a 40-60mph acceleration as that is where you'll find out if you can punch it and get out of the way of something to avoid an accident.
If the truck pulls the trailer ok, and it may well be able to, as it is potentially 500 lbs lighter than mine (wet and loaded) as well as shorter, narrower, and not as long, (therefor noticably less surface drag) then I'd say go ahead and buy it. If it does not perform then I would look more into a pop-up camper or a 3.4L or 4.0L truck. The last thing you want to do is have to "deal" with towing. Camping is about relaxing, and you can't relax if you are all stressed out from the trip, and not able to relax once you are there because all you can think about is "in 4 days I have to hitch back up and drive this beast again."
That said, if the truck manages the load ok, then you ABSOLUTELY
need a weight distribution hitch system
(that will solve the massive rear end squat you saw as they lowered the trailer onto the truck for your test drive) (it will also solve the "porpising", the feeling of being on a trampoline that you felt on your test drive)
A dual cam sway controll system
(this will solve that feeling of the tail wagging the dog that you felt on your test drive when the wind blew or you got passed by a semi.)
A brake controller and wiring
(this will enable you to stop your rig once you get it up to speed.)
Sorry it was long, but I wanted to be thorough. Any more questions just ask.