Sourcing and Shipping

Update:
1. Shipment: I looked at uship(dot)com and like many they wanted me to provide more info to "set up an account" before they would price my shipment. I contacted three sites that required little to no information and of those I chose Freight Management Logistics. They handled everything. Provided an accurate quote by looking up the exact ICC description of what I was shipping, Scheduled carrier pickup, Issued Bill of Lading, Tracked Shipment. Picked up noon Monday, available to me morning of Wednesday. Price was $50 less than second best, half what another online quoted me, and just a little over half what a carrier quoted direct. I wholeheartedly recommend FML. The Carrier (R+L) forklifted the shipment into the bed of my pickup, but I had to sign a waiver. They expect to load/unload from a dock.
2. SuperCoils: Our Jayco's front axle is at its full GAWR of 4600, so I wanted an axle and springs rated 5000 to provide a little reserve. Also sits nose low so I wanted the lift offered by SuperCoils. Our friends at SD Truck Springs had the be price. Phone call said they're "in stock" but that turned out to be the Special Order Springs are In Stock at the manufacturer in California. That made it an item not eligible for the free shipping SD offers on many items. But they had a coupon that gets most of the shipping back. From what I'm told, removing one end of the shock absorber should let the axle drop enough that the spring will tip out of its pockets. I believe the Hellwig sway bar might hold the axle back and have to be disconnected also.
3. 594 Bushings: Might not always have been this way, but adjustable offset bushings aren't recommended for RVs, commercial trucks, and modified chassis. I'll re-use the offset bushings I have and let the alignment shop provide new fixed ones if needed.
Hope y'all had a great Thanksgiving.

I take it those SuperSprigs are on the REAR.
The rear on ours has nothing added to the OEM 11-leaf stack. No airbags or helpers, so I can only figure it's at the height it should be. The rear axle's about 90% loaded and the front's about 98% loaded (4600-lb rating). That's CAT scale, loaded with people, food, gear, fuel, as for travel.
Hence the big heavy box. I'm shopping for a complete late model 5000-lb rated axle. If I undertake this project I want to do it ONCE. Axle, Brakes, Shocks, Adjustable Bushings, etc. etc. I believe it would be nice to raise the front the 1-5/8" the SuperCoils (from SuperSprings) provide.
SDTruckSprings has the SSC-31 (5000-lb with lift) SuperCoils for $258 a pair, free shipping. Several other places have them, but at $50 more.
I got our Hellwig Sway Bars from SD and they did what they were supposed to. On time, good price, fast.

I have Super Springs in my 26ft Tioga. Now it sits rear high.
Not a big deal. Most places it's not a problem.
They have a warehouse and office in Carpenteria 10
Miles S of Santa Bárbara. I hate air bags. You need
Spécial tools and experionce to instsall them in a
Motorhome.

Is it really low in front or is it high in the rear. Mine looks low in the front because the rear springs are underloaded and sit high.

I bought my adjustable caster/camber at my local NAPA store. Rockauto has adjustable bushings too. Another vote for air bags. Cheaper, easier, adjustable.

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you might try uship dot com for your heavy box of parts, can't help with the rest