Questions tagged [trailer]

Questions relating to trailers, caravans and other unpowered, towed vehicles

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3 votes
1 answer
167 views

Change Trailer Tire Size?

I have a utility trailer (a typical homeowner/DIY single axle, approx 8ft X 5ft) that has aging tires and which I'd like to replace soon. It currently has size 4.80-12" tires and I am ...
0 votes
1 answer
71 views

Trailer axle dust caps — Sizing

I want to order dust caps for my boat trailer that have grease fittings built in. Related: Zerk caps for trailer bearings — Installation, tools, and supplies. As @Pᴀᴜʟsᴛᴇʀ2 has pointed out, Princess ...
2 votes
1 answer
174 views

Zerk caps for trailer bearings — Installation, tools, and supplies

In a related question, Tools and supplies for roadside trailer bearing repair, @Pᴀᴜʟsᴛᴇʀ2 said: Something to think about is to worry about preventive maintenance more than worrying about having a ...
0 votes
2 answers
328 views

Attach small winch to truck bed or rear bumper

I have a 2010 1500 Silverado and a small ATV winch. I want to use the winch to pull a lightweight aluminum boat up a slight incline. I want to temporarily/occasionally attach the winch to the truck ...
2 votes
1 answer
153 views

Advantage of criss-crossed U-bolts

This spare tire trailer mount (Thule) has crisscrossed U-bolts: I would have thought regular U-bolts, arranged vertically, would have been adequate for holding a spare wheel bracket to a trailer ...
1 vote
0 answers
79 views

Tools and supplies for roadside trailer bearing repair

I've heard bearings are a common failure mode of trailers. What tools and supplies should I carry in my vehicle for doing an emergency bearing repair? I have a bearing kit: SKF 24 Trailer Seal & ...
4 votes
4 answers
1k views

Trailer spare tire mount: U-bolt threads too long for lug wrench

I'm installing a spare tire mount (U-bolt) on the tongue of my boat trailer. https://www.princessauto.com/en/spare-trailer-tire-u-bolt-mount/product/PA0008007005 The tire mount/U-bolt's threads are ...
1 vote
1 answer
40 views

Please help me understand towing capacity

I have a 2013 Nissan Rogue (front wheel drive) and I am thinking of getting a trailer hitch installed so I can transport renovation material without paying for delivery or renting a truck every time. ...
0 votes
3 answers
419 views

Scratch on aluminum trailer

Is there anyway that I can make this scratch look less visible?
0 votes
1 answer
37 views

Towing a trailer - Turning at intersections - Begin your turn when the front of your vehicle is even with the left side of your intended lane [closed]

Does "even with" mean "parallel with the left side of the intended line you want to turn into" in the following statement? Or maybe I have interpreted it incorrectly? Thank you! &...
3 votes
1 answer
41 views

Can I repurpose a vehicle body to make a pull trailer?

I have a couple older vehicles in my yard and I'm wondering if I can repurpose them. I'd actually like to strip one down and make a pull trailer. Is that feasible?
0 votes
1 answer
83 views

Cause of weird wheel failure on homemade utility trailer

I have a homemade utility trailer that's made from an old car or truck axle. I inherited it from my late father-in-law who bought it off a guy in his neighborhood and I've been using for over 15 years....
2 votes
3 answers
6k views

Are the axles on a cargo trailer supposed to be visibly bent?

Looking forward to buy a new cargo trailer so I could convert it to a camper. I was wondering, when I check the axles should I see them perfectly straight with the naked eye? Is there a way I could ...
2 votes
2 answers
138 views

Trailer Safety Checklist

I'm new to towing and I am working on a trailer safety checklist to go through before we ride. Any additions are welcome and appreciated. Check receiver - ensure it is secure to vehicle Check hitch - ...
1 vote
1 answer
446 views

Charge 24V Battery from 12V Alternator in Trailer

What is a reasonable approach to charging a 24V battery system from a 12V source such as an alternator? Can I simply use a 12v-to-24V step up converter? Seems I’d actually need this converter to hit ...
0 votes
1 answer
1k views

How to correctly test voltage on taillight/trailer plug/harness?

Vehicle in question is a 2007 Toyota Rav4 Limited with the 3.5l V6 and has the factory tow package. I have a trailer harness in which the green pole, aka the right/passenger side turn signal, is ...
0 votes
3 answers
614 views

Can an insulated copper wire oxidize down its ENTIRE length?

I was doing some electrical wiring on a snowmobile trailer today and was surprised to see black instead of shiny copper when I cut and stripped a section from the middle of a long section of ...
4 votes
2 answers
818 views

What type of safety pin would be correct for this tailgate latch?

My utility trailer has these tailgate latches on each side: As you can see there is a secondary safety pin which is meant to prevent the latch from opening by mistake. However this doesn't seem to be ...
0 votes
1 answer
608 views

Accidentally shorted trailer light, now 4-pin trailer doesn't work on 2016 Hyundai Santa Fe

The Car I have a 2016 Hyundai Santa Fe Sport with a tow package on it. 60,000 miles on the odometer. We recently bought a 5'x8' Carry-On trailer to move a couple motorcycles cross-country. Problem I ...
4 votes
5 answers
23k views

Why is there a "DO NOT PUSH" sign on the back of some trucks?

I often see a "DO NOT PUSH" sign on the back of trucks (I believe they have all been large semi-trailer dump trucks). I've even seen "YOU PUSH IT YOU OWN IT" signs on a few. This raises two questions ...
1 vote
1 answer
45 views

Trailer tire weight rating

https://www.amazon.com/2-Pack-Trailer-Wheel-ST205-75D14/dp/B074MHFC2C/ Said tire is rated: Tire Weight Rating: 1760 Lbs. Max. Pressure: 50 PSI Does this mean that one pair of tires (on a single axle)...
2 votes
1 answer
370 views

What type of trailer plug is this?

I can't for the life of me figure out what type of trailer light adapter this is. It's on a 2006 Toyota tacoma. It doesn't fit any standard 7 way plugs. I have an adapter that looks similar but the ...
0 votes
1 answer
35 views

Are "travel trailers"/"mobile homes" brakeable from the inside? [closed]

I have this feeling that, if I were to move into one of those things which I don't know what to call them, which look like a very small house and has wheels and a little thing to attach to a car, ...
0 votes
0 answers
160 views

Weight capacity of a 1-1/4" trailer axle?

I just got a used trailer, it has a 1-1/4" square dropped axle. The seller said it was good for a 3500lb capacity, and that it was a solid core. I'm skeptical of that. How do I tell what the true ...
1 vote
2 answers
70 views

Trailer Electrics - Advice Needed (Rear Tail Light)

Got a horse trailer, which seems to blow the fuse in my car for the 'Right Hand Tail Light'. When using the trailer, it will blow the fuse (not right away), knocking out the rear tail light on my car, ...
5 votes
2 answers
2k views

4-way car connector to 7-way trailer connector

I bought a CURT custom wiring harness that plugs into vehicle tail light assembly to provide a 4-way flat socket. It has a simple plug & play design that eliminates the need for cutting and ...
7 votes
5 answers
64k views

Should I over- or under-inflate my tires when towing?

We're about to take a trip across the country towing 5000lb (2300kg) with our SUV. It's rated for 9k, so I'm not worried about that, but I'd like to know how much to inflate my tires. Advice on the ...
5 votes
1 answer
2k views

Trailer socket problems

I have a tow bar and a seven pin plug to operate the lights, fitted on my car. I recently took my boat for repair and when they brought it out of the workshop they dropped it from a forklift truck ...
0 votes
1 answer
194 views

How much can I load on my trailer on my 2017 Subaru Legacy?

I have a 2017 Subaru Legacy with a standard trailer hitch installed at U-Haul. I pull a 5' by 8' utility trailer bought from Tractor Supply. I would like to carry multiple bookcases in the trailer ...
2 votes
1 answer
104 views

2012 Yukon Trailer Brake Controller not working

I have a 2012 GMC Yukon with a trailer brake controller that has worked fine for the past 5 years. Now all of a sudden, my trailer brakes won't operate. I tested the voltage between ground and the ...
2 votes
2 answers
778 views

Trailer lights on Ridgeline not working and showing low voltage

I've just acquired a 2010 Honda Ridgeline. The truck was equipped with a 7 pins trailer plug. I have very little knowledge on the history of the truck, so no idea how it was installed, if it was ...
1 vote
1 answer
108 views

How much to inflate essentially unlabeled tires?

My trailer tires are labelled only with the following: Carlisle made in USA 6.90-9 That's it - there is no max PSI, # of plies, load rating, or any other information at all that I can see. The ...
1 vote
0 answers
152 views

Trailer tail lights go dim with hazards on

I've wired up a 13 pin trailer plug to my 1996 Defender 90. When I connect a trailer board and I put the headlights on (tail lights come on) and put the hazard lights on, the tail lights go dimmer ...
15 votes
3 answers
11k views

Why do many hybrids have little or no trailer towing capacity?

I have noticed that many hybrid vehicles have little or no trailer towing capacity. For example, the Toyota Auris Touring Sports hybrid model has 375 kg trailer towing capacity (unbraked + braked) ...
0 votes
0 answers
74 views

Trailer tail lights still on when ignition is off

After having attaching a trailer hitch to a Volvo V70 2005 the tail lights keep glowing even when ignition is off. Therefore I have two questions: Is it normal on some cars? If not any ideas what ...
2 votes
0 answers
28 views

Levelling a trailer with a pair of jacks

I have a car transporter trailer that I have converted to a sort of caravan which can carry my stock to trade fairs and shows. When the stock is out we sleep in it. It has drop down legs at the back ...
0 votes
1 answer
16 views

Choosing replacement seals for trailer hubs?

How do you know what seal to use as a replacement for a trailer hub? When you replace the bearing it seems straightforward - the numbers on the existing bearing can be used to pick a new one. But ...
1 vote
1 answer
2k views

Servicing loose trailer hubs

I got a second hand trailer and in going over it noticed the wheel hubs are somewhat loose. Both wobble a bit when I jack the wheels off the ground, right being worse than left. I removed the left ...
1 vote
2 answers
74 views

What are the extra "bumps" on this trailer hub?

The back of the hubs on my trailer have some "bumps" which I'm not sure what they are for. The hub is a 5 lug x 5½" bolt circle diameter. From the view in the photo, the lugs are the outermost bumps ...
1 vote
0 answers
227 views

Are 6.90-9 trailer tires an obsolete size?

I have when seems to be an older trailer (not sure of age) which has tires labelled "6.90-9". They are in OK condition but I was looking into getting a spare, and had trouble finding anything in this ...
1 vote
1 answer
96 views

Are euro-style trailer "hooks" really made to be used as a hook?

I think of this type of tow ball as a "European" style. (That could be really ignorant, its just where I've seen them). I've read these described as a "hook". Is that just descriptive of the shape or ...
4 votes
8 answers
5k views

How to get torque on frozen lug nuts on trailer?

I have an old trailer that needs a tire replaced. I've looked at all the answers on how to unstick lug nuts, but they all assume that the wheel can be locked so when you apply torque to the lug nut ...
0 votes
0 answers
730 views

Connecting Trailer module (TRM) for Volvo V70 2005

I'm going to install a Trailer module (TRM) into a Volvo V70 2005. There are are two sockets on it (a gray and a green one). I found the cable from the Rear electrical module (REM) which should be ...
6 votes
2 answers
2k views

Trailer AFC converter turn signals blink together

I have a Nissan Murano 2009 (made in Japan for US market). I installed a trailer towing hitch and now I want to install a towing harness. Since I live in Europe I bought Brink Wiring Kit (732614) ...
1 vote
1 answer
91 views

No voltage to 2010 Toyota 4Runner trailer electric brakes

When I step on the brakes in my 2010 Toyota 4Runner, I do not get any DC voltage to the "electric brakes" pin of the 7-pin trailer socket (factory installed). (I measure this by touching the probes on ...
2 votes
1 answer
324 views

What exactly does the brake switch wire output and is there an easier way to get to it?

I'm working on adding a 7 pin trailer hitch to an existing 4 pin on a 2017 Hyundai Santa Fe. The last step of the process is connecting to the brake switch wire that is wedged way up on the brake ...
1 vote
1 answer
71 views

Trailer tire gone -- use spare or replace pair?

Some rebar popped a tire (ST205/75R14) on my dual axle 3500lb 26ft camping trailer. I'm not sure the year or mileage (bought the trailer used last year), but wear suggests the 4 tires have 60% of ...
3 votes
1 answer
56 views

How to troubleshoot a specific trailer brake light issue

Friend of mine is having trouble with her trailer's brake lights lighting up only on one side: In the above photo, the key is in the ignition, and the vehicle is in park. Not sure, this is an ...
3 votes
1 answer
22k views

How to prevent automatic transmission damage when towing a heavy load without the towing package

Automatic transmissions without an oil cooler and no transmission fluid high temperature warning indicator can be damaged towing heavy trailers. What can be done to get around needing the towing ...
3 votes
3 answers
2k views

Understanding Trailer Electrics - changing from 7 pin to 13 pin

I have a horse trailer which needs the wiring and lighting replaced due to corrosion over time. I have a mechanic who has offered to help me but I have been left with the task of purchasing what I ...