Thursday, March 3, 2016

Putting Your Vintage Treasure Back on the Road


Our next large project was replacing the dual axles on our trailer. Just like holding tanks, it’s not the sexiest of items one must tackle to have a fully functioning vintage RV. It shouldn’t be ignored, either. Have your heart set on an Airstream in particular? Depending on the age and maintenance history of your model, just plan on replacing the axles at some point during your ownership. Airstream started using torsion axles during the 1960s. Most torsion axles have a life-span of 25 years (according to the experts). Regardless of axle type and depending on condition, many vintage trailers’ axles may need replaced. We strongly recommend getting an expert opinion regarding the axles, especially if your trailer is going to be used for travel. Corroded axles and worn suspensions just aren’t safe. Eventually failure of these parts can occur. They can do significant damage to numerous things too; such as premature tire wear, uneven load balance and increased likelihood of nasty accidents.

When it comes to the axles and suspensions for Airstreams, you deal with replacement in a couple of ways. Plenty of information can be found on sites like Airforum concerning axles. Start there before making any decisions.  You will find some DIYers who did the axel prep and installed themselves; other DIYers who ordered complete axles from someone who specializes in Airstream parts, and installed them themselves; a few who ordered the parts and paid someone else for installation,  and others who had the repair shop handle everything. What you decide to do should be based on what best suites your circumstances. When it comes to cost, the adage “You get what you pay for” definitely applies. There are only a couple of suppliers who deal with direct Henschen replacement axles (that we could find), and yes, it does affect cost. But here’s the advantage these specialists have. They can use the Airstream VIN/Serial number to ensure the new axles match your trailer’s specifications. Torsion axles made for Airstream from the 1960s on should have a metal label from the manufacturer. The specialists will want that information also, because the label not only has axle specs but date of manufacture as well. (There is always the possibility a PO has replaced original axles with something else and may have made significant modifications to the trailer to do so.)

We chose a parts specialist and ordered our axles as a complete set, which means they came with new brakes. An added bonus of ordering new axles is newer technology, such as a balancing kit, self adjusting brakes and an easier method of lubing the hubs. If axles are replaced, the shocks should be too. The types of shocks used on Airstreams are quite a bit different than shocks found on other trailers. Again, a qualified supplier is best in determining the correct shocks. Make sure your new axles include the connections for installing the shocks. 

Torsion axles can be notoriously tricky when trying to determine if they’re past their prime. They have rubber rods on the inside that make these axles more than just holders for your tires, but also part of the suspension system. From what we could find, you have a few options to help guide you in determining condition. Lots of rust on the axles and all connecting parts are one indicator. Other signs that point to replacement: how straight the axles are hub to hub (they should have a slight bow up), how far the wheels come up in the fender well (the fender covers the top of tire just a bit), and do any of your tires look like they’re bending inward? (This is much easier to see on dual axles). Check all the tires for wear. Are any uneven? Either tires haven’t been properly maintained with rotation etc., or the axles are bad. We found most of this information in online articles. It’s a good idea to look these up. Make sure they have accompanying photos to aid your diagnostics. Beyond these methods, the only other way to determine if the rods are bad is to cut an axle open. Once you do that the axle is no longer usable.

(If you are in the market for a vintage trailer, make sure you are armed with information concerning good or bad condition of all the major functional parts. Price all the things you’re most likely to replace. We found from the forum you can enlist the help of very knowledgeable people that may live in your area who are willing to go with you to look at a dream traveling candidate)

Changing the axles is a major job we decided to outsource. We don’t have a shop of our own; our driveway is a bit too steep; and for liability reasons it just wasn’t a good idea to use our storage space. This winter, we have also had a lot of wind in our area. If you decide to do the work yourself and don’t have an indoor space to complete the task, you will need to keep a close eye on the weather. In order to change the axles, your trailer has to be lifted up a bit. Also consider that proper disposal of the old axles is your responsibility.

Our new axles were shipped to an RV repair shop located on the south side of Houston. The owner has been acquainted with our supplier since 1969, and he recommended them. The trailer went to the shop a month ago and came home last week.

Preparing the axles to our trailer’s specifications took our supplier about 2 weeks, with delivery occurring a week later. That seems to be standard, but the time of year you order can make a difference. We ordered our axles at the end of December. The manufacturer had been closed for 3 weeks during the holidays. Fortunately for us, our order was placed shortly before they returned to work, so we didn’t experience a significant delay. Meaning we were able to keep the tentative appt. arranged with the repair shop.

Just a reminder: For any project where you want the help of professionals, make sure you plan far enough ahead not only to get your parts in a timely manner, but to assure the repair shop can schedule the work in the time-frame you need. We got serious about the purchase of our axles in Oct. 2015. By the beginning of Nov. we had decided on the parts provider, determined when those parts fit in our budget, and made arrangements with the repair shop (the parts were being sent directly to them after all). RV repair shops, whether attached to dealers or stand alone, are in high demand. There aren’t as many of them as there are places to fix autos. At most places you just can’t show up for service, unless it is some sort of emergency. But even in an emergency, repairs can take some time depending on your location and what the issue is. Your choices narrow considerably when you want work done on a vintage trailer (think trailer restoration shops, which our shop does as well.) We were thankful to receive a recommendation, saving us a considerable amount of research time (though even on recommendations it is a good idea to check the shop’s history). Still, the repair shop which best suited our needs is a fair distance from us. We live just North of Houston, while they are on the south side. Since this distance includes some big city driving, we had to plan accordingly with respect to rush hour(s). That is not a time to be towing something if brakes are iffy.


Bob Jones RV repair shop did the work we needed, and our experience was very positive. We highly recommend their shop for any type of needed RV services; from repairs, to ordering parts and appliances. (Bob Jones RV, if you visit us here; feel free to toot your horn in the comments. In fact, if you would like to do a guest post, even a short one, consider this your invitation.) The other items on our wish list, such as our signal light bugaboo, have been dealt with. We no longer have to make ourselves crazy trying to sort them out. Along with the new axles and brakes, fully functioning safety lights will allow us to hit the road with confidence. And once we get the gray and black tanks back into the trailer, we can start focusing on the fun interior stuff.


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