How to Install a Reese Weight Distribution Hitch

Installing a Reese Weight Distribution Hitch: Your Guide to a Smoother Tow

So, you've just bought that shiny new travel trailer or maybe a beefy utility trailer, and you're all geared up for adventure. That's awesome! But then you hitch it up, and your tow vehicle looks like it's doing a perpetual wheelie – the back end sagging, the front end pointing skyward. Yikes! Not only does that look a bit goofy, but it's also a recipe for a white-knuckle towing experience, and frankly, it's just plain dangerous. That's where a Reese weight distribution hitch (WDH) comes into play, and trust me, it's a game-changer.

If you're anything like me, you probably looked at the box, saw all those metal bits, and thought, "Can I really do this myself?" The answer is a resounding yes, you absolutely can! Installing a Reese WDH isn't rocket science, but it does require a bit of patience, the right tools, and a good understanding of what you're trying to achieve. Think of me as your buddy walking you through it, step-by-step. Let's get that rig towing like a dream, shall we?

Why Bother with a WDH Anyway? The Peace of Mind Factor

Before we dive into the nitty-gritty of installation, let's quickly chat about why this piece of equipment is so vital, especially when you're towing a heavier trailer. Without a WDH, all that trailer tongue weight just presses down on your tow vehicle's rear axle. This lightens the load on your front axle, reducing steering control and braking effectiveness. It can also cause what we lovingly call "trailer sway" – that unnerving feeling of the trailer trying to steer your vehicle. Not fun, right?

A weight distribution hitch, like those fantastic ones from Reese, works by using spring bars to essentially leverage that tongue weight and redistribute it more evenly across all the axles of both your tow vehicle and your trailer. The result? Your tow vehicle sits level, your steering feels responsive, your brakes work efficiently, and sway is significantly minimized. It's not just about comfort; it's about safety, plain and simple. You'll feel much more relaxed and confident behind the wheel, which is exactly what you want when you're heading out on a trip.

Gearing Up: What You'll Need and Some Critical Pre-Checks

Alright, let's get down to business. Before you even open that box, gather your tools. You'll need:

  • A good socket set: And I mean good. You'll be dealing with some hefty bolts, so robust sockets (and a breaker bar for initial loosening, if needed) are key.
  • A torque wrench: This isn't optional, folks. Proper torque ensures everything stays put and is crucial for safety.
  • Tape measure and a marker: For precise measurements.
  • Level: A small spirit level or a digital one works great.
  • Grease gun: For lubricating pivot points.
  • Safety glasses and gloves: Always, always, always put safety first.
  • A friend (optional but recommended): An extra set of hands can make things a lot easier, especially when lifting heavier components.

Now, for the pre-checks. This step is super important for getting your WDH set up correctly:

  1. Park on a level surface: This is non-negotiable. Both your tow vehicle and trailer need to be on flat ground.
  2. Hitch up your trailer normally: No WDH components attached yet. Just connect the coupler to your ball mount.
  3. Measure and record initial heights: This is crucial.
    • Measure from the ground to the top of your tow vehicle's front wheel well. Write it down.
    • Measure from the ground to the top of your tow vehicle's rear wheel well. Write it down.
    • Measure from the ground to the top of your trailer frame, both at the front and the rear. Ideally, your trailer should be level, but note any difference.
    • Why all these numbers? They are your baseline. The goal is to return your front vehicle height as close as possible to the unhitched height and to make sure both your tow vehicle and trailer are level when the WDH is engaged.
  4. Chock those wheels! Both the tow vehicle and the trailer. You don't want anything rolling away.

Unboxing & Initial Assembly: The Shank and the Head

Okay, box open! You'll typically find the receiver shank, the hitch head, and the spring bars, along with various bolts, washers, and maybe some chains or cam assemblies.

Attaching the Receiver Shank

First up, slide the receiver shank into your tow vehicle's hitch receiver. This is the part that dictates how much drop or rise you need to get the WDH head roughly level with your trailer coupler when the trailer is level. Reese offers shanks with different amounts of drop. Once it's in, secure it with your hitch pin. Easy peasy.

Assembling the Hitch Head

Now for the hitch head. This is the beefy component that holds your trailer ball and the pivot points for your spring bars. You'll attach it to the receiver shank. This is where those initial height measurements really start to come into play.

  • You'll likely have a series of bolt holes on the shank and the hitch head. You want to bolt the head at a height that allows your trailer to sit as level as possible once the WDH is fully engaged.
  • Most Reese WDH systems come with a set of adjustable washers or shims that go behind the trailer ball mount inside the hitch head. These washers are essential for adjusting the tilt of the hitch head. A slight downward tilt (towards the trailer) is usually desired, as this creates the necessary leverage for the spring bars to do their job. Start with the manufacturer's recommended number of washers – usually around 5 or 6 – and we'll fine-tune it later.
  • Install the trailer ball onto the hitch head, ensuring it's tightened to the manufacturer's specified torque. Do not skimp on this! This ball holds your entire trailer.
  • Bolt the hitch head to the receiver shank. Again, use that torque wrench for all bolts.

The Heart of the System: Attaching the Spring Bars and Brackets

This is where the "weight distribution" magic really starts to happen.

Mounting the Frame Brackets

Your Reese WDH will come with brackets that attach to the frame of your trailer. These are where the spring bars will connect, either directly or via chains.

  • Crucial Measurement: You need to measure back from the center of your trailer coupler, typically between 29 to 32 inches (always check your Reese manual for the exact recommended measurement for your specific model!). Mark this spot on both sides of your trailer frame.
  • Installation: Install the frame brackets at these marked spots. Make sure they are level and secure. These brackets are what the spring bars will interact with, so their placement is vital for proper operation.

Connecting the Spring Bars

This step varies slightly depending on whether you have a round bar or trunnion bar style Reese WDH, but the principle is the same: get those bars connected!

  • Round Bar WDH: These typically slide into sockets on the hitch head and are held in place with pins. The other end will likely connect to a chain, which then goes into the frame bracket.
  • Trunnion Bar WDH: These are usually square or rectangular bars that slot into the sides of the hitch head and are secured with pins. They often connect directly to an L-bracket on the trailer frame.

With the spring bars in place, you'll now engage them with the frame brackets. This is often the trickiest part, as you're leveraging a lot of force.

  • Lifting the Bars: Most systems use a lift-assist tool (a large lever) to raise the spring bar, allowing you to attach the chain to the frame bracket (for round bars) or to swing the L-bracket into place (for trunnion bars). You'll start with a lower number of chain links or a less aggressive L-bracket position.
  • Be Careful: Those spring bars are under a lot of tension. Keep your fingers clear, and ensure the lift-assist tool is secure.

The Grand Finale: Fine-Tuning and Testing

Once the spring bars are engaged, it's time to re-evaluate those measurements we took earlier.

  1. Re-measure:

    • Check your tow vehicle's front wheel well height. It should be very close to your original unhitched measurement. If it's still significantly higher than your original measurement, you might need more tension (more chain links or a more aggressive L-bracket position). If it's lower than the original, you have too much tension.
    • Check your tow vehicle's rear wheel well height. It should be level with the front, or perhaps just slightly lower.
    • Check your trailer frame height. It should now be level from front to back.
  2. Adjustments:

    • Tension: If you need more tension, you'll engage more chain links (round bar) or adjust the L-bracket position (trunnion bar). If you need less, do the opposite.
    • Hitch Head Tilt: If, after adjusting tension, you can't get the front and rear of your tow vehicle to level out properly, you might need to adjust the number of washers behind the trailer ball in the hitch head. Adding washers increases the downward tilt, which usually allows for more weight distribution (more leverage for the spring bars). Removing washers decreases it. This is often an iterative process. You might adjust washers, re-tension, re-measure, and repeat a few times until you get it just right. Patience is key here.
  3. Final Checks:

    • Torque: Once you're happy with the setup, go around and re-torque every single bolt on the hitch head, shank, and frame brackets to the manufacturer's specifications. Don't skip this!
    • Safety Chains: Make sure your safety chains are properly crossed and connected.
    • Breakaway Cable: Connect your trailer's breakaway cable.
    • Lights: Test your trailer lights!
  4. Road Test: Now for the fun part! Find a safe, quiet road or an empty parking lot. Drive slowly at first, then gradually increase your speed. Pay attention to how the rig feels.

    • Does it steer easily?
    • Does it feel stable, or do you still notice any sway?
    • How does it brake?
    • Listen for any odd noises.

If anything feels off, pull over and make adjustments. It's perfectly normal to fine-tune it after a short drive.

Maintenance & Ongoing Care: Keep It Happy

Your Reese WDH is built tough, but a little TLC goes a long way.

  • Grease: Regularly grease the pivot points on your hitch head and where the spring bars connect. This reduces friction and wear.
  • Visual Inspection: Before every trip, give the entire system a once-over. Check for any loose bolts, cracks, or excessive wear. Look at the spring bars, the chains (if applicable), and the frame brackets.
  • Cleanliness: Keep it relatively clean, especially after driving through muck or salty roads.

You Did It! Enjoy the Ride!

Installing a Reese weight distribution hitch might seem like a daunting task at first, but with a bit of elbow grease and these steps, you'll have it dialed in. The feeling of confidently towing your trailer, knowing everything is properly set up and safe, is absolutely priceless. No more white knuckles, no more sagging rear end, just smooth, stable towing. So go on, hit the road, and enjoy those adventures with your newly balanced rig. You've earned that peace of mind!