mikes
My 177SE has  a dry weight of 2960 lbs, and a gross weight of 3500. That's not enough, since battery, propane, and necessities easily bring it near max.

So, I'm off on a project to upgrade the suspension to support a 5200 lb. gross weight.

Details here.

I'll try to update here, if anyone is interested.

First step, bigger wheels/tires (these are inside the house because the red paint needs to dry/cure, and it's raining outside):
[Painted_wheels]
Mike
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Tom
Mike - Yes please post as you go along.  And I get a dead link for the "flatsurface" site.
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Alabama Jim
Those tires and rims look very nice.  Keep us updated please and thank you for sharing.
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mikes
Tires mounted:
[Mounted_tire] 
Mike
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mikes
All done. Link in original post has more detail.

[New_axle_in] 
Mike
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James Amos
Very nice and where did you get the white wall adapter peace.
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mikes
Details at the link in the first post.
Mike
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mikes
I figured out (I think) all the Federal legal requirements. In Michigan, there don't appear to be any state laws which require action, since trailers between 2500 to 9999 lbs are treated the same, and it's based on the "dry weight" anyway. It requires some new/replacement labels on the camper (2 on the side, 1 on the inside of the door), to modify the GVWR, GVAR, and CCC to meet Federal regulations. Even though it's a 5200 lb axle, I used a weight rating of 5080 lbs, since that's the rating for the most commonly available tires. Riverside got their door sticker wrong, basing it on a 20 gallon fresh water tank, when they're actually equipping them with 39 gallon tanks. I fixed that, too. The net effect of the upgrade is 1480 lbs more cargo carrying capacity (CCC).

[Legal_labels] 

Mike
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Tom
Well done [smile]
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mikes
So, Port-a-walls don't work well. They lasted about 1000 miles, then tore apart. They might work better on bias ply tires, but I doubt it - I had tall and stiff radials (225/75R15 LR-E).
Mike
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Retro177Kit
Ouch. Did the port-a-walls tear up the new radials,or the camper, when they disintegrated?

How does the trailer tow / ride / feel with the new axle?
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mikes
No harm, other than a small bit of whitish discoloration to the tires under where they were. On the first side to go, most of it tore away. The other side was still all one piece, but just starting to tear.

It seems to tow better - more controlled. I can tell the ride is a bit stiffer. Stuff inside moves around a bit more than before.
Mike
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Tom
Wow! You got a 15" wheel in there?!? I'm impressed.

I was hoping for 14"s when I get the lift kit.  15"s would be sweet.
Wish I could see the pics, the work filters seem to be killing them.
Will try again when I get home.  

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Nathan & Jen
Tom,
The 177s come with 14s.. once lifted 15s are easy.
Its also possible to upsize wheels while keeping the overall diameter of tire the same size..

There are trailer tires out there with the wide white wall.. not cheap but then neither were the cokers
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