Expert Answers about Trailer Leaf Spring Suspension

• Recommended Leaf Spring Suspension Enhancement for Trailer
• The SuperSprings Mounting Kit for OEM Leaf Springs Above the Axle # MXKT is designed to be used with a SuperSpring Custom Suspension like the # SSA28 and allows you to mount the springs above the axles instead of below them with the rest of the leaf spring pack. These springs are designed for a truck and not a trailer, so it's really not going to be a solution that would work for you. If you can tell us more about your trailer, like the axle capacity and how many axles there are, we can...
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• Are Shocks Required for the Roadmaster Comfort Ride Leaf Spring Suspension Kit
• The Roadmaster Comfort Ride Leaf Spring Suspension Kit - Tandem 7K Trailer Axles part # RM-2460-2570 comes with shock absorbers as they are required for this suspension system in order to work properly. The leaf spring portion themselves are not available separately.
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• Are Trailer Leaf Springs Sold Individually or in Pairs
• The trailer suspension leaf springs that we carry, including # SP-178275 are sold individually. When replacing springs though you will always want to replace all of them at the same time. This spring is rated for 750 pounds by itself. For a pair used on a single axle they are rated for 1,500 pounds. I have linked a video of this spring and a link to our help article on slipper spring suspension.
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• Wet Bolt Recommendation For the Roadmaster Comfort Ride Leaf Spring Suspension Kit
• The Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shock Absorbers # RM-2460-2570 will not include wet bolts. This is due to the system using slipper springs to replace the double eye springs that come on most trailers. With the slipper springs you will only be able to use one Wet Bolt # 126B2 for each leaf spring, 4 total are needed for this kit. The wet bolts are a better option as they will keep water and rust from building up inside the leaf spring which leads to the spring...
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• How Many Hanger Boxes Come With the Roadmaster Comfort Ride Kit for Triple Axle Trailers
• The Roadmaster Comfort Ride Leaf Spring Suspension Kit part # RM-2460-2570-3 will come with a total of six leaf spring packs and four center hanger boxes which will be needed to secure three axles under a trailer. There will be three leaf spring packs and two center hanger boxes on each side of the trailer. The rest of the required parts are all included for you.
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• Do Slipper Springs Come With Suspension Bolts
• Slipper springs like the # SP-177275 and # SP-179275 include the nylon bushings but do not come with a spring-eye bolt. Both of these use a 9/16" diameter bolt so you can use the # 166079 for a bolt and locknut.
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• Leaf Spring Lengths Available for Use with Dexter Trailer Axle Rated for 3500-lbs
• The axles like # 7359765-EB that we offer do not come with leaf springs but we do offer leaf springs rated for this axle's 3500-lb capacity. On the linked page you can see the 3500-lb double-eye leaf springs we have and these range in their eye-to-eye length from 23-1/4 to 27-inches (part # SP-210275). If you are rebuilding your trailer suspension and want to replace the springs along with the axle be sure to measure your old spring's eye-to-eye length when it is removed from the trailer;...
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• Do Trailer Suspension Equalizer Kits Come with Leaf Spring Bushings
• Most leaf springs for trailers come with bushings so the equalizer kit part # AP233 does not include them. We offer some bushings though if you are in need of them. I attached a link to a page that has all of them. You will need to determine the inner and outer diameters that you need plus the width. A very popular one is the part # TRBU11566 that has an ID of 9/16 inch, is 1-3/4 inches long and has an OD of 11/16 inch.
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• Does 3-Leaf Double-Eye Spring e84SR Include Mounting Hardware
• The 3-Leaf Double-Eye Spring # e84SR is sold individually and comes with bushings for its two eyes. It does NOT include the required shackle straps, shackle bolts, nuts or spring hangers needed for installation. However, we do offer each of these items. The link included will show you all trailer suspension parts for double-eye springs. Just click on the number of axles you have to see suitable kits. For example, for a single axle kit we offer parts such as Redline # APS1 that includes...
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• Do the Dexter E-Z Flex Equalizers Come with New Eye Bolts and Bushings for the Outside Hangers
• The E-Z Flex Heavy Duty Rubber Suspension System part # K71-652-00 for a 33" axle spacing and part # K71-653-00 for a 35" axle spacing does come with replacement eye bolts and bronze bushing for the front and rear leaf spring hanger. This is a full kit that comes with everything but new leaf springs and leaf spring hangers. I have installed a few myself and they are my favorite upgraded equalizers due to the all inclusive kit contents. If you need new leaf springs or leaf spring hangers,...
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• How Many MORryde X-Factor Crossmember Supports Are Needed For A Tandem Axle Trailer?
• The MORryde X-Factor Crossmember for CRE, SRE, or Stock Leaf Spring Suspension # MR33WR includes one adjustable crossmember. Your existing hardware will be too short due to the extra thickness of the crossmember, so you will need to add # MR58ZR if your current shackles are 2-1/4" long, or # MR98ZR if your current shackles are 3-1/8" long. This will install to the leaf spring hangers, located in-between the front and rear axle. So, for full support, a tandem axle trailer will utilize 3.
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• Why Does the Dexter Suspension Upgrade Kit Not Come With Bushing for Other End of Leaf Spring
• I am not quite sure why the Dexter Heavy Duty Suspension Upgrade Kit for Single Axle Trailers part # K71-358-00 doesn't come with new bushing for the front hangers. That said, you could add these easily with the part # D014-077-00.
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• Does Equa-Flex Equalizers LC279688 Come With 1 Or 2 Equalizers?
• Equa-Flex Cushioned Equalizers - Double Eye Springs - Tandem Axle - 6K to 8K # LC279688 includes 2 equalizers. These replace the standard equalizers on your tandem-axle trailer's double-eye leaf spring suspension. I attached an installation video for you to check out.
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• Are Shackle Straps Included With Universal Group Leaf Springs
• Shackle straps are not included with the 3-Leaf Double-Eye Spring for 3,500-lb Trailer Axles - 23-1/8" Long # e59SR. You will want to buy shackle straps based on the length of your current shackles. This is the center of bolt hole to center of bolt hole measurement. Since you are looking to buy new shackle straps, it would be a good time to upgrade to heavy duty shackles straps and wet bolts. For example, if you have tandem axles with 2-1/4" long shackle straps you would need the MORryde...
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• Available Weight Capacities for Timbren Axle-Less Trailer Suspension Kits
• The Timbren axle-less trailer suspension kits like # A12WS545 and all others shown on the linked page come as a set of two so that they can completely replace a standard beam axle/leaf spring trailer suspension. These kits are available in a range of weight ratings from 400-lbs capacity (per pair) up to 7000-lbs capacity (again, per pair). Kits also vary in their included parts; some have hub/drums and brakes, others hubs only and others come with no hubs.
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• How Many Bushings are Needed for 4 Slipper Leaf Springs
• I think by slider spring you mean slipper spring so on 4 slipper springs there is only 1 eye per spring for a total of 4 eyes. Provided the 2 inch length, 9/16 inch inner diameter, and 1-5/16 inch outer diameter matches what your suspension requires this set of 4 will be all you need. The 2-piece/1-piece debate I believe stems from the fact that each single one is molded from 2 halves.
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• What is Included in the SuperSprings Custom Suspension Stabilizer and Sway Control Kit
• The SuperSprings Custom Suspension and Sway Control Kit, # SSA15MXKT, will include two SuperSprings that are designed to be mounted on the rear leaf springs of your 2008 Ford F-250 or F-350 Super Duty. The kit will include U-bolts, shackles, polyurethane mounting base, and bolt hardware to install on your vehicle. Some components may not be used depending on the year, make, and model of your vehicle.
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• How Is Never Fail Hardware Kit For Triple Axle Trailer Installed
• I have attached a drawing of a typical triple-axle setup you can check out. I have noted the locations you would install the # LC281288 kit shackles, bolts, sleeves, and nuts. As you can see, one of the equalizers does not use a replacement set of shackles and that is why there are 22 bolts and nuts instead of 24. This kit is designed for use on triple-axle trailers with double-eye leaf springs that have 2 EQ-105 equalizers like part # TREQ105. If you do not have a suspension setup like...
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• Why Does the Dexter Heavy Duty Suspension Kit for Single Axle Trailers Only Have 4 Bronze Bushings
• The Dexter Heavy Duty Suspension Upgrade Kit for Single Axle Trailers # K71-358-00 comes with 4 bronze bushings since that is how many you need to replace them for the leaf springs. That being said, if you wish to use 2 more for the remaining wet bolts on the hanger you can always buy the # D014-077-00 separately.
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• Does the Dexter Single Axle Heavy Duty Suspension Kit Come with Bushings
• The Dexter Single Axle Heavy Duty Suspension Kit part # K71-403-00 does not come with bushings. These will be required but they should already be installed in the leaf springs and equalizers. If yours need replaced you can use the Suspension Bushing part # 721590.
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