Hydraulic Brake Kit - Uni-Servo - Free Backing - Dacromet - 10" - Left/Right Hand - 3,500 lbs

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• Comparing Free Backing and Duo Servo Hydraulic Brake Assemblies
  
• Good questions. The difference between free backing brakes like the # AKFBBRK-35-D and regular hydraulic drum brakes like # DMSB18794M-93M (referred to as duo or duel servo) is that the wheel brake cylinder has pistons on both sides of the regular/duo servo brakes instead of just the one side on the single servo free backing assemblies. The amount of braking doesn't change much between them, they just function differently yet under the same amount of hydraulic pressure. The duo servo...
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• Comparing Different Hydraulic Trailer Brakes for Boat Trailer
  
• Essentially yes, all of them will work for your trailer assuming you have 3,500 pound axles and a 4 bolt mounting flange. However, there are some differences between the brake assemblies you mentioned. The # AKFBBRK-35 are free-backing brakes, meaning they will not engage when reversing with your trailer. If your trailer has a reverse lockout on it then this feature is not necessary. They're coated with an e-coat used for corrosion resistance. The Demco brakes # 40716-15 are galvanized...
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• Recommendation For Brakes And Drums For WT20GAB Boat Trailer
  
• Based on the information you sent, it looks like your inner bearings are Item # L68149 and outer bearings are Item # L44649 which are common for 3,500 lb trailer axles. I did not see in part descriptions the bolt pattern of your wheels but the most common patterns are 5 on 4-1/2, 5 on 5-1/2, and 6 on 5-1/2. I will make recommendations for all based on these bearings sizes. I have attached an article on "how to measure bolt patterns" in case you need it. For a 5 on 4-1/2 bolt pattern,...
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• Recommended Replacement Brake Assemblies For Eagle Trailer Drum Brakes
  
• We have a few product options to replace your brake assemblies. I recommend the Hydraulic Brake Kit - Uni-Servo - Free Backing - Dacromet - 10" - Left/Right Hand - 3,500 lbs # AKFBBRK-35-D. This will give you both assemblies for one axle. These are free-backing so you can back up with your trailer without engaging the trailer brakes. They are marine-grade and designed for boat trailers. The dacromet coating offers corrosion resistance. Another really nice option is the similar brake...
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• Choosing Replacement Trailer Brakes, Hubs and Actuator for 1978 Calkins Tandem Axle Boat Trailer
  
• You'll want to check a few details on the trailer so you can select compatible replacement parts. First, you want to confirm the axles' rated capacity; this should be noted on a sticker or plate on the axles themselves. Based on the info you provided it may be that you have two 3500-lb axles. Your brakes and hubs must match the axle rating. Next you'll want to take note of the size of the current brakes. You need to confirm the diameter and depth. You also want to note their mounting...
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• Difference Between Single, Dual and Free Backing Servo Brake Assemblies
  
• The biggest difference between the servo styles that you'll notice is between free backing plates and the others. The free-backing plates will allow your trailer to back up without having the brakes lock up. With surge brakes typically when you go to reverse the trailer it pressurizes the brake system which locks the wheels up. Free backing setups are designed to allow the pressure to build but not activate the shoes of the assembly so the trailer can back up. Some surge brake trailers...
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• How to Determine Which Drum Brakes to Get
  
• There are a few pieces of information that you will need to know when looking for replacement drum brakes. First of all you will need to know the weight capacity of your axle so you can choose drum brakes that will be able to safely stop your trailer. The brake mounting flange is another important thing to look at when looking for trailer brakes. The most common is a 4 bolt pattern, but there are 5 bolt patterns for trailers with a bigger weight capacity. You will also need to...
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• Torque Specs for Brake Assembly and Brake Actuator
  
• The torque specs for the Hydraulic Brake Kit # AKFBBRK-35-D are 45-70 foot lbs and for your Titan Actuator T43329007K the bolts should be tightened to 80 foot lbs.
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• Drum Brake Replacement Assemblies for Use with Titan Actuator
  
• Thanks for the photo and tape measure. That makes it fairly easy to help you get what you need. You need 3500 lb single servo brake assemblies. My recommendation is the Hydraulic Brake Kit - Dacromet - 10" - Left/Right Hand # AKFBBRK-35-D. The Dacromet is for increased corrosion resistance. You could alternatively use the Hydraulic Trailer Brake Kit # AKFBBRK-35 for a standard protection against corrosion or even upgrade to the Demco Galvanized set # 18788-87 for superior rust...
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• Complete Hydraulic Drum Brake Kit for Boat Trailer With 3,500 lb Axles
  
• I would need some more information before setting you up. What is your axle's weight capacity? Do you have an idler hub or hub and drum? What size are your wheels? I'm going to send you a link to a couple of help articles on what you'll need to add brakes and if you can get back to me with more info I'd be more than happy to help.
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• How to Find Replacement Drum Brake Assembly for Boat Trailer
  
• I can tell you exactly how to find compatible drum brake assemblies, though I took a look and could not find any type of reference to Dico 40511. To determine the brake assemblies that will fit your 2002 Escort boat trailer, you need to know your axle's weight capacity, your mounting flange bolt pattern and the inside diameter and depth of your drum. For example, Hydraulic Brake Kit # AKFBBRK-35-D are rated for 3,500 lb axles, have a 4-bolt mounting flange pattern and measure 10"...
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• Recommendation For Replacement Brakes For 1997 MacGregor 26X Sailboat Trailer
  
• We will be glad to help but unfortunately there are all kinds of options and possibilities. The best way to find the right replacement brakes is to find the weight capacity of your axle (see attached picture), the size of your brake mounting flange (4-bolt pattern most common), and your drum diameter for drum brakes and rotor diameter for disc brakes. If your trailer has a 3,500-lb axle with drum brakes and a 4-bolt brake flange, I recommend something like the Hydraulic Brake Kit,...
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• How to Determine Which Hydraulic Brake Assemblies for Tandem Axle Boat Trailer
  
• To determine which hydraulic drum brake assemblies will fit on your 2,500 pound axles you'll need to measure the dimensions of your drums. For example, if your drums are 10 by 2-1/4 inches you can use # AKFBBRK-35-D. Since you have a boat trailer I suggest getting galvanized or dacromet brakes to resist corrosion.
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• Can Mounting Studs be Removed from Hydraulic Brake Assemblies AKFBBRK-35-D
  
• The four mounting studs on Hydraulic Brake assemblies # AKFBBRK-35-D are not removable. These are press-fit for a permanent installation. For a similar brake without studs you can use Demco kit # 40716-15. These brakes are also free-backing galvanized finish left- and right-hand brakes for 3500-lbs axles.
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• Replacement Wheel Cylinder for Uni-Servo Free Backing Brake Assemblies
  
• Your old Hydraulic Trailer Brake assembly # AKFBBRK-35L can use the Uni-Servo Wheel Cylinder # AKBRKR-H7-L-CR. These are corrosion resistant coated but not aluminum. Another option is to upgrade your entire assembly to the Hydraulic Brake Kit - Dacromet # AKFBBRK-35-D. This rust resistant coating will be on the backing plates, the springs are stainless steel, the cylinders are aluminum and they are designed for marine use.
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• Does My Trailer With Surge Coupler Have Brakes Or Need Wiring?
  
• As you mentioned, the Titan 60 Surge Brake Actuating Coupler is mechanical. It has a lever inside that pushes up against the hitch ball to give you a fixed point that makes the lever move and compress. This compression in the master cylinder applies the hydraulic pressure you need much like a brake pedal. The wiring you are referring to sounds like a traditional 5-way flat trailer connector where that 5th colored wire is blue and is used for either electric trailer brakes or reverse...
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• Bolt Hole Spacing of 4-Bolt Brake Mounting Flange for 10 Inch 3,500 Pound Hydraulic Brake Kit
  
• The Hydraulic Brake Kit # AKFBBRK-35-D fits on a standard 4 bolt brake flange for 10 inch brakes like # 4-35. The standard measurement is 2-7/8 between the bolt holes. I've attached a diagram as well.
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• Recommended Free-Backing Hydraulic Brakes for Surge Brakes Without Reverse Lockout
  
• All hydraulic brake drum systems are compatible with free-backing brake assemblies like # AKFBBRK-35-D for 3500 lb axles with 10 inch drums or # AKFBBRK-7 for axles 5.5K to 7K with 12 inch assemblies. The brake lines are run to the brake cylinder that only has a single piston to allow movement in reverse without engaging the brake shoes to stop the trailer. Let me know if you have more specific fit questions.
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• Is There a Difference Between Brake Assembly Part # AKFBBRK-35-D, AKFBBRK-35R-D and # AKFBBRK-35L-D
  
• You are correct. We sell the assemblies as a pair as part # AKFBBRK-35-D or individually as part # AKFBBRK-35R-D and # AKFBBRK-35L-D.
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• Recommended Electric Lockout or Free Backing Brake Assemblies for Surge Brake Actuator
  
• The Titan Zinc-Plated Brake Actuator - Drum - 2-5/16" Ball - Bolt On - 8,000 lbs # T4079200 does not have a manual lock-out. Because of this, it is recommended to use an electric lockout like # T4748800 or free backing brakes so that you can back your trailer without activating the trailer brakes. You can use the Hydraulic Brake Kit - Uni-Servo - Free Backing # AKFBBRK-35-D for 10 inch assemblies or # AKFBBRK-7 for 12 inch assemblies.
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• Replacement Brakes and Hubs for 1987 Moody Boat Trailer with 7 x 2-1/4 Hydraulic Brakes
  
• The 4-bolt mounting pattern of 7-inch brakes is the same as for 10-inch brakes; both use bolts/holes spaced apart by 2-7/8-inches on center. Moving to larger brakes will naturally require new hubs and these new hubs must use the same set of bearings and the same wheel bolt pattern as your current ones. Also note that larger brakes and drums will be compatible with different wheel diameters than your 7-inches brakes were. The free-backing 10-inch hydraulic brakes you referenced, kit #...
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• Hydraulic Drum Brake Assembly Recommendation for Dexter Hubs # 8-247
  
• The 8-247 Dexter hub that you have is our part number # 84546UC3 which has drum dimensions of 10 inch diameter by 2-1/4 inches wide. That means that the Hydraulic Brake Assembly Set part # AKFBBRK-35-D that you mentioned will fit and work well. 45 to 50 lbs is the recommended torque rating for the 4 bolts that hold 10 inch brake assemblies like these.
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• Recommendation For Brake Assemblies and Bearings For 2000 Forest River Rockwood Roo Travel Trailer
  
• I did some research and most 2000 Forest River Rockwood Travel Trailers have an average weight capacity of 2553 lbs. If your trailer components are standard then you have a 2,300 pound to 3,500 pound trailer axle that often has inner bearings Item # L68149 and outer bearings Item # L44649. While a good starting point, I need to know your actual axle capacity, bearing sizes, and bolt pattern to give you a correct recommendation. Your axle capacity is normally stamped on your axle....
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• Replacement Brakes and Bearings for 1993 Mastercraft Boat Trailer
  
• Before you choose brakes or bearings you should verify what's currently on your trailer. If it is a 3,500 pound axle part # AKEBRK-35-SA will likely fit if the trailer has electric drum brakes. Both sides are included and labeled. They're also self-adjusting so you only need to set the adjustment when you first install them and then leave them alone. You can measure the inner diameter of your drums to find if this fit or not. One of two bearing kits is likely what you need. You should...
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• Recommendation For Replacements Of 10 Inch Hydraulic Drum Brakes For Single Axle Boat Trailer
  
• Based on your information, I recommend the Hydraulic Brake Kit, Item # AKFBBRK-35-D. This kit is marine-grade, has Dacromet-coating which resists corrosion, and works well with salt water applications. The kit fits most standard hub-and-drum assemblies including Dexter, Lippert, and AL-KO. It fits a 4-bolt mounting flange pattern, works with 3,500-lbs axles, and has the free-backing feature. Left-hand and right-hand brake assemblies and mounting bolts included. Regarding your hubs,...
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