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Redline


Redline has become the industry leader in trailer parts and accessories through their dedication to customer service. They pride themselves on having parts in stock, shipping orders the same day they were placed, shipping orders correctly and being competitively priced.

  • Offers a full line of trailer products for enclosed, utility and boat trailers
  • Manufacturers toolboxes, wiring and trailer jacks
  • Produces top-quality products at unbeatable prices




Redline Reviews and Installation Videos



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Expert Answers about Redline

  • How Does Horse Trailer Spare Tire Carrier 413200 Install on a Trailer
  • Spare tire carrier # 413200 is usually welded on and typically seen on gooseneck/livestock trailers. It doesn't have pre-drilled mounting holes but you could potentially drill your own and bolt it to a surface. Welding though should be done by a professional welder.
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  • Trailer Hub that Uses Inner Bearing LM67048 and Outer Bearing LM11949
  • The only hub we have that takes inner bearing LM67048 and outer bearing LM11949 is agricultural hub # AH15450ECOMP. This hub though has a 4 on 5 bolt pattern. If you used it you would have to change the wheels to match but 4 on 5 wheels are rare and we do not carry any. The other issue is that agricultural hubs are rated for a maximum of 20 miles per hour.
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  • Availability of Pre-Drilled Continuous Hinge That Measures 3-Inches Wide x 68-Inches Long
  • The Redline replacement hinge you referenced, part # H300, measures 3- x 72-inches but is not pre-drilled. This is because this part is designed for multiple installation methods - by welding or by use of fasteners you supply. We also offer a stainless steel version, part # SH300. These hinges do not carry a specific weight capacity since that will depend on the strength of the surface they mount on. For a 150-lb door I recommend the stainless steel hinge # SH300. This hinge can be cut...
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  • Recommended Fender Bracket for Use with Fulton Trailer Fender # F008553
  • The recommended fender brackets to use with the Fulton Fender part # F008553 is the Galvanized Steel, L-Shaped, Bolt-On Brackets # PF775-BKT-2. Without what kind of brackets you currently have on your trailer it's hard to say for certain, but most likely you could use them to install the # 8553. I attached a couple review videos for you to check out as well.
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  • Pilot Hole Diameter Required to Install the Torx Screw part # TFX250
  • The 2-1/2" Long Standard Torx Trailer Floor and Wall Liner Screw # TFX250 that you referenced require a 7/32 inch pilot hole.
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  • Replacement U-Bolt Plate and Bolts for 1-1/2 Square Axle
  • The smallest square axle U-bolt kit and bolt plate is for 1-1/2 inch axles. For that you would want the part # SP01-120 for the U-bolts and part # 115983 for the plate. Maybe you measured your axles wrong and they are actually 1-1/2 inch square axles.
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  • Options to Lift a 2003 Keystone Fifth Wheel Trailer
  • One option you have would be to move your axles to below the leaf springs. This is the most common way to lift a fifth wheel trailer to allow the trailer to be towed level if the hitch and pin box adjustments are maxed out. The diameter of your trailer axle will determine the size of the parts that you will need to order. If your axle is 3 inches diameter, the Dexter Trailer Springs Over-Under Conversion Kit, # K71-385-00, would be a great choice and if your axle is 2-3/8 inch diameter...
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  • Recommendation on How to Lift Gooseneck Horse Trailer for Increased Bed Clearance on 2015 Ram 1500
  • If your Sundowner horse trailer currently has double-eye leaf springs that are located underneath the axle, you could use an over-under conversion kit to raise the ride height of your trailer. Using this kit moves the leaf springs on the trailer to the top of the axle and increases the ride height of your trailer by the diameter of the axle. For a 3" axle you'll need part # K71-385-00. For a 2-3/8" axle you'll need part # K71-384-00.
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  • What Axle Length Should be Picked to Match Width of Tow Vehicle Wheels with Trailer Wheels
  • You will need to take the wheels off of your Jeep and measure from hub face to hub face. That dimension is the length of axle you should order for your trailer so that the sets of wheels from the trailer and vehicle will stick out the same distance. As long as the wheels you plan to install on the trailer have the same offset as the wheels of your jeep they will be the same width apart. It also sounds like this is an off-road trailer. Normally we recommend only ST rated trailer tire...
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  • Replacement Double Eye Springs for 3500 lb Axle on Utility Trailer
  • Trailer leaf springs tend to flatten out over time as they wear out. The best way to get an accurate eye-to-eye measurement is to put the trailer up on jack stands so there's no weight on the suspension. Given the dimension you provided, the # PR4B spring would be the correct replacement.
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  • How to Determine the Right Replacement Double-Eye Leaf Spring for a Golf Cart Trailer
  • To choose replacement leaf springs you would have to go by the measurements of the old springs and the capacity of the axle (or individual spring). The # PR4 spring measures 25-1/4 inches from eye center to eye center. And it is rated for 2,400 pounds for a 4,800 pound axle. Springs should also be replaced in pairs. To measure a spring you will need to have the weight off of it. A worn spring will flatten out some so the measurements may not be exactly the same as a new spring. I have...
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  • Suggested Frame Clips to Secure Rubber Brake Lines on Saltwater Boat Trailer
  • If your boat trailer has a frame design that will directly accept the clip-in-place Redline # 464600 frame clips then this will be your easiest installation. We do also offer 1/2-inch metal loom clamp # A0500 from Redline that has plated steel construction and a rubber sleeve to prevent friction damage to the wire or tubing secured in it. The enamel-finish clips # 464600 could still be spray-painted with an additional coating of paint for extra protection from corrosion, and this could...
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  • How Tight Should Shackle Bolts Be Tightened On Trailer
  • There should be enough free play in the shackles to allow them to move. There is no specific torque rating for shackle bolts. The first thing you should make sure of is that the bolts you use are long enough so that when installed you will have at least 2 threads protruding from the nut. Next, make sure that the nut you are using is a locking nut, so that it cannot work loose and fall off. If the bolt you are using has knurls at the bolt head you will want to tighten the bolt...
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  • Replacement Strap Hinge for Back Door on Featherlite Trailer
  • We currently offer 4 different replacement strap hinges, # 2008-8, # 2512, # 2212, and # 383700, for cargo trailers. I have included a photo showing each of these with their measurements listed. I recommend comparing these measurements to the strap hinges on your Featherlite Trailer to determine if we have a strap that will work for you.
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  • Replacement Door Lock Latches and Cam Door Locks Recommendation
  • The old Bargman L400 series locks you have on the trailer currently haven't been made for a very long time and apparently due to their rarity and how desirable they are people sell them for quite a bit of money when they can find them. I can't help you find those. For a similar handle lock you could use the Full Size Locking Steel Flush Door Latch # L3980. Cam door latches like part # 383200 usually just lock with a padlock or something like # 970DPF and there really isn't a way to...
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  • Fender to Tire Clearance Recommendation for a 5k Rated Trailer Slipper Spring
  • The only 5,000 lb rated trailer leaf spring we offer is the Slipper Spring part # 1003T3. The distance from where the spring bows up to where the hangers of the spring are is 3 inches. So if the spring were to completely flatten out the axle would have to move 3 inches. I would recommend 4 inches of clearance between the fender and the top of the tire just to be safe.
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  • Dimensions of the Single Axle Trailer Fender # J8824AT
  • The Single Axle Trailer Fender # J8824AT measures 24 inches from the bottom of the fender where it expands out as you said. The top portion that is flat measures 16 inches.
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  • Axle Placement Recommendation for a 72 Foot Long Trailer
  • To determine the location for the front and rear hangers on your tandem axle trailer you will first need to make sure that you have the correct center point for your equalizer hanger. The center point of your equalizer hanger needs to be located where you will have 60 percent of the frame of the trailer in front of the center of the equalizer hanger and 40 percent behind the center of the equalizer hanger. For example, if the trailers frames length is 72 feet, then the center-line location...
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  • How Does the Redline Ramp Spring RS16933LH Install
  • The Redline Ramp Spring # RS16933RH is a replacement spring and is only part of the ramp spring system on a trailer. To use this spring on your trailer you must have ramp hinge with a 1-1/2 inch diameter rod or pipe where the ramp meets the trailer. The spring slips over the rod with the tension of the spring against the ramp and trailer when the ramp is in the up position. The spring should not be welded to the ramp or trailer, the tension and the rod will hold the spring in place. The...
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  • Replacement Axles For 2005 Weekend Warrior SL2805
  • You should be able to find a sticker or tag on the trailer near the front that has some information you need when you decide to replace the axles. It should have trailer weight rating and you may even find the weight capacity on a sticker or tag on the axles themselves. I have attached a drawing that shows where you need to measure to find the correct axles for your Weekend Warrior. I have also attached a link to the product page for axles we offer you can check out. You may want...
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  • Leaf Springs Options For Electric Vehicle
  • You want to choose the springs based on the weight capacity and fit. Since you are building this, the length of the spring would be open if you have the room. Slipper springs usually have a greater weight capacity but they will tend to ride a little stiffer than double-eye springs. I have attached a link to our product page for the suspension items we offer that you can check out. You said you were considering a single leaf spring. The single-leaf spring we offer that is 1-3/4 inch...
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  • Replacement Key and Tumbler Assembly for Redline "Junior" Locking Steel Flush Door Latch # L1930
  • We have what you need. The replacement Key and Tumbler Set for the Redline "Junior" Locking Steel Flush Door Latch # L1930 is part # CHKT. This kit includes one tumbler and one key.
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  • Recommendation for Increasing Axle to Trailer Frame Clearance
  • Actually, what will solve your axle-to-frame clearance issue you are having the easiest would be to move the axles from being above the leaf springs to below the leaf springs. That will give you a great deal more clearance between the frame and the axle and won't require you to change anything about your current leaf spring hanger setup. The diameter of your trailer axle will determine the size of the parts that you will need to order. If your axle is 3 inches diameter, the Dexter Trailer...
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  • How Tight Should Spindle Castle Nuts be Tightened
  • The nut on the spindle should be tightened until snug, with no side-to-side play in the hub and then backed off slightly, about maybe a 1/8 of a turn. If the spindle uses a castle nut and cotter pin or tang nut, tighten the nut finger tight until it stops, then back it off so the cotter pin or washer tang fits into the next indentation of the castle nut. If you click on the video link I provided, and forward to the 1:40 mark, you can see one of our techs demonstrating how to tighten...
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  • How to Determine Hanger Spacing Using 25-1/4 Inch Long Trailer Leaf Springs
  • It all depends on the spring being used, the shackles, and the equalizers among other things. There are some suggested hanger spacing measurements but really you would mock it all up first before permanently welding the hangers in place. For example, if you used suspension kit # APT5 and spring # PR722 that is 25-1/4 inches long then the distance between the front and center hangers and between the center and rear hangers is 29-1/2 inches. That would create an axle spacing of 33-1/2...
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  • Can a Horse Trailer Back Door be Left Open or Will it Damage the Hinges
  • It really depends on how heavy the door is, how far it sticks out from the hinges, and how big the hinges are. You could technically say the same thing about any door that mounts on hinges. So the doors in your house you would not necessarily be closed all the time. But at the same time the distance between the ground and the bottom of the trailer door is greater than that on a door in your house. In other words, a sagging door in a house would only go so far before being held up by...
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  • Can Trailer Leaf Springs Lose Their Weight Capacity Over Time
  • Springs can wear out over time and lose ability to support the same amount of weight they once were capable of. It sounds like you are in need of a new set of springs on your trailer. You will need to determine what weight capacity springs you will need. The same plate that told you what tire size was recommended for the trailer should also have the axle capacity. The amount of springs doesn't necessarily indicate the capacity of the spring. If you need a 2,500 lb axle spring you would...
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  • Can the Enclosed Trailer Ramp Spring # ERS80S66 be Cut Shorter
  • Yes, the Enclosed Trailer Ramp Spring # ERS80S66 that you referenced can be shortened to better fit your ramp door. The installation instructions for this product are recommended for individuals who have experience winding torsion springs. If you have not worked with a torsion spring system before, we recommend contacting a local garage door company to install this system.
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  • Overall Mounting Flange Dimensions for Redline "Junior" Locking Steel Flush Door Latch # L1833
  • The overall dimensions of the Redline "Junior" Locking Steel Flush Door Latch # L1833 that you referenced can be seen on the photo I have linked for you. I pulled a piece from our warehouse and took the measurements you requested. The overall outside dimensions of the mounting flange are 3-5/8-inches x 4-3/4-inches.
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  • Washers for BT8 Trailer Axle Spindle
  • We do indeed carry a 1 inch inside diameter spindle washer for a BT8 spindle. The part number you need is # SW1000. The washers are sold individually, so be sure to order a quantity of 2.
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