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i have a dual axle trailer now, hasn't been an issue yet but i would really like to add a third axle for stability and peace of mind. anyone ever do this before???
adding a 3rd axle [ read tire peeler offer, road eater upper ] would be a pain. Why not just drop those axles and install some 7500lb or 10,000lb axles and run some E-Rated or better tires .
Not bashing but , that trailer does not look right under your boat . Looks like you need a heavier trailer all the way around.
__________________ F350 4x4/ Dodge 2500HD 5.9L Cummins
Leaving the Picture of the Ford cuz I miss it
Pacific 2325 cc
Honda bf225
aluminumalloyboats.com
I concur, avoid tri-axle assemblies if you can. They're hard on tires, bearings, rims and under-carriage when turning. Only problem you might have upping to 7500 axles and hub and drum is that they will be 8 hole. I believe 16" rim is the smallest diameter available. It appears though hard to tell that you have 15" rims. So fender clearance becomes an issue between the fender and the larger tire. If you raise the fender then fender clearance between the fender and boat hull may also be an issue.
I had 15" wheels with a E-Rating on my Toyota one ton and they were VERY PROUD of those tires $$$$$$
Like HTV said above ^^^^^ you would go with 16" wheels and may have to raise the finders up to a 1/2" inch and may have to adjust the bunks a little higher.
If you do make the change , stay with a common size/rated tire.
__________________ F350 4x4/ Dodge 2500HD 5.9L Cummins
Leaving the Picture of the Ford cuz I miss it
Pacific 2325 cc
Honda bf225
aluminumalloyboats.com
You cannot simply "add" an axle without royally screwing up the balance of the trailer - ie. tongue weight. You can add an axle if you move the two existing axle's, but your best advice has already been posted above.
the advice is good and well taken. the trailer actually does look undersized but i have put over 10K miles on it with only one tire issue due to a nail. so i would beg to differ that it is not adequate. but like the other posts said i am considering going to a larger capacity axle. i had it weighed on the scale and it weighed in at 8800lbs. so its not over the gvw cap.
if i dropped those axles and added some 7500 would i need to change the springs and everything? would it be possible to change the hubs to accept 6 lug rims? new to all this trailer stuff.
As a tri axle trailer owner, I would avoid it again if at all possible for the basic reasons mentioned above. I would find a local reputable, shop and ask for their suggestions, and most economical solution.
if i dropped those axles and added some 7500 would i need to change the springs and everything? would it be possible to change the hubs to accept 6 lug rims? new to all this trailer stuff.
Like I posted earlier, 7500lb. axles assys. are 8 hole only which require minimum 16" rims.
If you can provide me the length of the spring and how many leafs I can give you a good estimate of the spring capacity. Measure eye to eye straight across, not along the arch in the spring.
Like I posted earlier, 7500lb. axles assys. are 8 hole only which require minimum 16" rims.
If you can provide me the length of the spring and how many leafs I can give you a good estimate of the spring capacity. Measure eye to eye straight across, not along the arch in the spring.
If the springs are currently supporting the boat, bolting 7500 lb axles on them will not affect their ability to do that. the 7500 lb axles will allow you to run the 16 inch tires and heavier duty hubs that will give you the little extra margin of safety you are looking for. adding an extra 5k axle is doable also. I did that to mine. you will need to move the existing axles forward (or backward) to get the proper tounge load. no small task but can be done.
Adding an axle to trailer? 
