Cox Trailer Rebuild

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moberg12
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Cox Trailer Rebuild

Post by moberg12 »

My boat build has been on hold due to the crappy home made trailer the boat came on. I got to the point were I didn't want to put the boat back on the trailer until the trailer was redone. Well the original trailer was pretty much junk. It was home made and I couldn't find any replacement parts for it.

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I cut it up and got $34 dollars for it at the salvage yard

A couple weeks ago I answered a craigslist ad for a Cox trailer with a free boat. I sent an email and a couple hours later I was the proud owner of a new boat trailer and crappy fiberglass boat. I had no intention of taking on a fiberglass boat resto so the old boat went directly to the dump the next day. In case you missed it that story can be found here: https://www.tinboats.net/forum/viewtopic.php?f=3&t=22571

On to the new project, I'm going to use this thread to document the restoration of my new Cox trailer

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fully adjustable

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The axle will be replaced

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I will be using 2 u bolts per side when it goes back together.

I plan to start tearing the trailer down tomorrow. The plan is to grind it down, prime and paint, new axle, springs, all new hardware, and bunks. In its current state it looks like it will be about 1ft. short for my boat, even with the winch post moved forward. I plan on lengthening the tongue with a fulton folding tongue kit.

Feel free to share your comments and ideas.

Thanks for looking

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JonBoatfever
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Cox Trailer Rebuild

Post by JonBoatfever »

Definatly a fixer-uper... mine was like that except and ugly rattle can blue.

lckstckn2smknbrls
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Cox Trailer Rebuild

Post by lckstckn2smknbrls »

Is there anything wrong with the axle? If not you could save a few bucks.
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jasper60103
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Cox Trailer Rebuild

Post by jasper60103 »

moberg12 wrote:... In its current state it looks like it will be about 1ft. short for my boat, even with the winch post moved forward. I plan on lengthening the tongue with a fulton folding tongue kit.

Feel free to share your comments and ideas.

Thanks for looking
Nice project.
Just wondering, can you mount the winch post to that extension, and will it support the weight?
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2018 Tracker Grizzly 1648
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moberg12
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Cox Trailer Rebuild

Post by moberg12 »

lckstckn2smknbrls wrote:Is there anything wrong with the axle? If not you could save a few bucks.
Nothing is wrong with the axle, it just looks a little light duty for my liking!! I'm replacing everything while I have it apart!! The reason I scrapped the old trailer was I couldn't easily find parts for it. My goal for the new trailer when it is all finished is the ability to replace any part with something sold off the shelf!!
jasper60103 wrote: Nice project.
Just wondering, can you mount the winch post to that extension, and will it support the weight?
The winch post won't need to be mounted to the extension. I have enough length the way it is to fit the boat, but the bow and winch post would be so close to the coupler that the boat would be very close to the back of my Jeep. My thought was that adding about 2' to the tongue would give me a buffer and give me more maneuverability. That way I won't have to worry about the boat smashing the back of my jeep. Unfortunately I've run into the problem before trying to turn around in a tight spot, to make it worse I was driving my Dad's truck at the time. Let me tell you Toyota Tundra rear bumpers aren't cheap!!!!

I'm not completely sold on the fulton kit yet either. 2"x3" tubing is not very expensive, and the tongue is just bolted on. It might end up being more cost effective for me to just buy a new piece of 2"x3" a couple feet longer. I just have to make sure the tilt mechanism can be transferred, if not I'll go with the fulton kit

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jasper60103
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Cox Trailer Rebuild

Post by jasper60103 »

jasper60103 wrote: Nice project.
Just wondering, can you mount the winch post to that extension, and will it support the weight?
moberg12 wrote: The winch post won't need to be mounted to the extension. I have enough length the way it is to fit the boat, but the bow and winch post would be so close to the coupler that the boat would be very close to the back of my Jeep. My thought was that adding about 2' to the tongue would give me a buffer and give me more maneuverability. That way I won't have to worry about the boat smashing the back of my jeep. Unfortunately I've run into the problem before trying to turn around in a tight spot, to make it worse I was driving my Dad's truck at the time. Let me tell you Toyota Tundra rear bumpers aren't cheap!!!!

I'm not completely sold on the fulton kit yet either. 2"x3" tubing is not very expensive, and the tongue is just bolted on. It might end up being more cost effective for me to just buy a new piece of 2"x3" a couple feet longer. I just have to make sure the tilt mechanism can be transferred, if not I'll go with the fulton kit
Yea, I'll be watching this thread closely because I'm facing the same dilemma. I need about a foot or so more tongue. I could adjust the wench post forward a little more, but then the rear lift gate on my van wouldn't clear the boat.
I don't have any welding skills, so a bolt-on extension would be the easiest for me. Thanks for sharing.
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moberg12
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Cox Trailer Rebuild

Post by moberg12 »

jasper60103 wrote: Yea, I'll be watching this thread closely because I'm facing the same dilemma. I need about a foot or so more tongue. I could adjust the wench post forward a little more, but then the rear lift gate on my van wouldn't clear the boat.
I don't have any welding skills, so a bolt-on extension would be the easiest for me. Thanks for sharing.
Just thought I'd update. I called my local metal supply company and 2"x3" steel tubing runs $3.75 per foot. The fulton kit is $80. It makes more sense for me to just replace the entire tongue piece with new tubing, I only need 9' to be 2' longer. I just have to figure out the tilt mechanism. Lucky for me I know a welder that does great work dirt cheap.

Looks like I'll save a bunch of time by not grinding down the old paint and rust on the old tongue!!

Jasper, give your local metal supply company a call along with a couple welders, I'm sure you could get a new tongue welded in for less than $150 total cost!!

edit: looks like only the latch mechanism is welded to the tongue tubing. I should easily be able to grind it off and have it welded to the new tubing.

I do have 2 questions!

1. I planned on using rust-oleum rust reformer to prime the trailer, do you guys think that will work, or should I use self-etching primer?

2. the current tongue tubing is 1/8" thick. Do you think that is good enough or should I go with a bit thicker tubing?

Sand blasting starts tomorrow!!

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moberg12
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Post by moberg12 »

Well I had some time Saturday to start work on the trailer.

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Being able to do this was quite handy!

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The sand blaster was a very helpful addition to the grinder.

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Before

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After

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Well that is as far as I got. I didn't want to leave the bare steel exposed so I at least got it painted with rust reformer. I had plans Sunday so the back half will have to wait till this weekend.
Last edited by moberg12 on 22 Nov 2011, 19:01, edited 1 time in total.

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jasper60103
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Post by jasper60103 »

Wow, that sandblaster cleans it up nicely. It will look brand new when you're done. Great progress.
When can I drop mine off? LOL. Thanks for the update.

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moberg12
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Cox Trailer Rebuild

Post by moberg12 »

Well I picked up the new tongue piece after work today. 9' of 2"x3"x3/16" for a total of $47!! The old tongue was just 1/8" but the thicker stuff was only a couple dollars more. 9' plus the coupler and I will end up with just over 2' to play with.

Unfortunately the girlfriend is out of town this weekend so I'll have to spend it working on the trailer :mrgreen:

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moberg12
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Post by moberg12 »

Well I guess it is time to update this thread. The last couple of weekends I was able to get some real quality work in on the trailer, and finally got it finished yesterday.

-new paint
-all new hardware
-new spring bushings(old springs were in good shape)
-new bunks and carpet
-new coupler
-whole new tongue tube
-new rollers
-new winch
-new jack
-new hubs
-new lights (only thing left to install)

Got the boat on the trailer yesterday and adjusted the bunks and rollers. I'm still planning on replacing the axle in the near future. I've got the page bookmarked just need to place the order. In the meantime I can get back to finishing my boat.

On to the pics:

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I think it turned out great!!

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Gramps50
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Post by Gramps50 »

Looking good
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fool4fish1226
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Post by fool4fish1226 »

It did turn out great =D> nice job
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overboard
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Cox Trailer Rebuild

Post by overboard »

I have the same trailer, only its galvanized. the axle also has a camber in it, don't know if you need to replace that axle. I'm hauling a 1654 tracker grizzley on it and dont seem to have any problems.
may do what you did, and extend the tongue. I had thought about doing that for awhile, just never got around to it.
nice job on the trailer.

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moberg12
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Post by moberg12 »

overboard wrote:I have the same trailer, only its galvanized. the axle also has a camber in it, don't know if you need to replace that axle. I'm hauling a 1654 tracker grizzley on it and dont seem to have any problems.
may do what you did, and extend the tongue. I had thought about doing that for awhile, just never got around to it.
nice job on the trailer.
Everyone keeps telling me that, so I might just leave it! The trailer came with an old fiberglass boat on it that weighed 780lbs without an engine, and it didn't seem to have any trouble with that load. I doubt my finished boat will weigh that much. Part of me thinks replacing 40 year old parts is still a good idea though.

My boat is also 16' and I didn't like how much of the boat would of been hanging off the trailer. I would have had to move the winch post almost all the way to the coupler to get it where I wanted, and that would have left a very un-maneuverable trailer. I think the new tongue and the welding only ran me about $50, it was well worth it. The old tongue was also pretty badly bent. I may still need to ad one more keel roller, there is a pretty large gap between the last roller and the bow stop.

Anyone have any thoughts on upgrading to 12" wheels??

Thanks for all the compliments!!

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