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Expert Answers about Forest River XLR Thunderbolt 5W Toy Hauler


  • Can ST235/85R16 And ST235/80R16 Tires be Used on Trailer at Same Time
  • Thank you for the kind words, that is much appreciated, and while I do wish I could tell you it was okay, in regards to having different size tires on your trailer - ST235/85R16 and ST235/80R16 - it is definitely not recommended. There are a number of different issues that can occur. You'll get uneven tire wear with the tires having different rotations, your trailer could track oddly, and there could be suspension issues occurring because of the 1 inch diameter size difference. Basically,...
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  • Availability Of Replacement Handle VDO343 For Ventline
  • Are you looking for something like Replacement Handle with Screws for Ventline Vanair Trailer Roof Vent - Polar White # BVA0207-05? I ran the part number through our site along with Ventline's tech support and we came up with nothing regarding part number VDO343 or VD0343. If this handle is not what you are looking for then feel free to send in a few photos of your handle that you are trying to replace so that we can try to match one up.
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  • What is the Mighty Cord RV Power Cord Extension w/ Indicator Lights # A10-5050EHLED Made With
  • I spoke to my contact at Valterra and she confirmed that the Mighty Cord RV Power Cord Extension w/ Indicator Lights - 50 Amps - 50' Long # A10-5050EHLED is made of copper wiring.
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  • Exterior Ladder for 2013 Forest River XLR Thunderbolt 5th Wheel
  • For an exterior ladder on your 2013 Forest River XLR Thunderbolt I recommend the Stromberg Carlson Exterior RV Ladder # LA-401. This ladder measures 99-1/2 tall x 12" wide and can be trimmed down if needed. The ladder is also compatible with the extension # LA-148. This will allow you to close the distance to the ground when you use the ladder. If you would prefer black we also have the # LA-401BA. I have attached some installation videos below for your reference.
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  • How to Pick Out Replacement Leaf Springs and Equalizers for Triple Axle Trailer
  • When you say upgrade do you mean replace with better components or just replace what you have as it's worn out? Either way the first bit of info I need is the capacity of the axles on your trailer and the length of the leaf springs. Also what's the dimensions of the equalizers you have? I'd need distance from left to right between the bolt holes and vertically as well. With that info I can get you replacement parts that are either upgraded and can offer you a cushioned ride for the trailer...
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  • Determining The Correct Hydraulic Slide-Out Cylinder For A 2017 Forest River XLR Thunderbolt
  • To find the correct replacement Hydraulic Cylinder for the slide out of the 2017 Forest River XLR Thunderbolt you'll need to measure the distance from the center of the port to the center of the other port. Since you measured 32" I'm assuming you'll need the Lippert Replacement Hydraulic Cylinder for RV Slide-Out # LC42FR which has a port to port length of 31-1/2", but I highly recommend remeasuring the find the correct fit.
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  • Determining The Correct Replacement Screen Door Slider For A 2012 Forest River XLR Thunderbolt
  • There unfortunately is no guide to tell us the size of your screen door slider so you'll have to either measure your old slider or the track to determine the correct size. You'll also need to make sure that the slide will provide enough clearance for the door latch. For example, the Lippert Motor Home Entry Screen Door Bubble Slider Panel # LC234101 is 12" x 12" and has a 13/16" depth to accommodate a screen door latch. I've attached a link to our selection of sizes below so that you can...
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  • Solution for Needing Replacement Circuit Boards for Fan-Tastic Roof Vent for RV
  • With the Fan-Tastic roof vents there isn't a replacement circuit board available but you can replace the "guts" of the vent with the # FV803358 which does take care of the circuit boards and lift/fan motors. This would be best solution to get your roof vent working again. I attached a review video for more info on this as well.
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  • What Axle Capacities Does Equa-Flex Cushioned Equalizers # LC145546 Work On
  • The Equa-Flex Cushioned Equalizers # LC145546 that you referenced is a kit of two equalizers. These are rated for use on axles with capacities between 5,000 lbs and 8,000 lbs. So since your 15k trailer would most likely have a pair of 8k axles this kit would work great at smoothing out your ride quality as well as being properly weight rated.
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  • Can I Install The JT's Strong Arm Stabilization Kit On A Hydraulic Auto Leveling System?
  • Tri Pods do give you a major boost in stabilization, but a system like the JT Strong Arm Stabilizer Kit # LC191025 will be much more stabilizing. Why? Well you are taking your current jack and adding two separate components, creating a larger spread compared to scissor jacks. Also creating two bigger triangles will result in more stabilization. So, the Strong Arm Jack Stabilization is the more stable route. If I were installing these arms, I would be using two of the adapter lugs # LC314592...
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  • Lug Nut Torque Specs For A 2017 Forest River Thunderbolt With 16" Wheels
  • Hey Tim, I have attached a chart that shows all of the recommended torque specs for trailer wheels. I am not sure of the exact stud size your 2017 Forest River Thunderbolt uses, but it is probably either 1/2" or 9/16". If they are 1/2" they should be torqued to 90-120 ft lbs. If they are the 9/16" studs it will be 120-140 ft lbs, assuming they are steel wheels. If you have something different you can find the correct torque spec on the chart below.
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  • Solution for MaxxFan RV Roof Vent Where Switch Only Works if Unplugged from Power
  • You'd need a new circuit board for your MaxxFan # MA99FR to fix the switch issue you are having. For that you'd need the # MA10A04751KS.
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  • Slide Toppers in White Appropriate for 12 Foot Slide, 8.5 Foot Slide, and 5 Foot 10 Inch Slide Out
  • Thanks for the info. I'm happy to assist with the correct fits which are based on flange to flange measurements of your slides and will be purposefully wider than your slide for the hardware. For your 12 foot slide use # LCV000163298 (slide out width range of 140 to 145-3/4 inches). For your 5 foot 10 inch slide use # LCV000163279 (slide out width range of 68 to 73-3/4 inches). For your 8 foot 6 inch slide use # LCV000163290 (slide out width range of 98 to 103-3/4 inches). These slide...
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