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  1. Ladder Racks
  2. Thule
  3. Over the Cab
  4. Truck Bed
  5. 1200 lbs
  6. No Drilling Required
THIS ITEM IS NOT A FIT FOR
2017 Ford Explorer
Thule

Thule TracRac SR Sliding Truck Bed Ladder Rack w/ Cantilever - 1,250 lbs

Part Number: TH43003XT-510EX
$2,049.85
Ladder Racks
Not Confirmed to Fit

2017 Ford Explorer

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Product Images

In Use/Installed

This versatile, sliding ladder rack adjusts along the length of your truck bed and easily removes from the included T-track base rails. Over-the-cab extension lets you carry long pipes, lumber, and more. Lightweight, rustproof aluminum construction. Fastest Shipping and Great prices for Thule TracRac SR Sliding Truck Bed Ladder Rack w/ Cantilever - 1,250 lbs. Read our customer reviews of Thule ladder racks. Call 1-800-940-8924 for expert service or order your ladder racks part number TH43003XT-510EX by Thule online at etrailer.com.
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Thule Ladder Racks - TH43003XT-510EX

Highlights

  • Custom Fit for Your Vehicle: Installs with hardware that attaches to your truck's bed rails or stake pockets
  • Slides for Full-Bed Access: Rack moves along base rails so you can load tall or bulky gear.
  • Handles Oversized Cargo: Over-cab cantilever adds 32" support for long pipes or lumber.
  • Strong Load Capacity: Carries up to 1,250 lbs; cantilever rated for 1,000 lbs.
  • Rustproof Aluminum Build: 6000-series aluminum with dual-stage powder coat resists corrosion.
  • No-Drill Setup: Mounts in stake pockets for quick install and secure fit.
Made in USA

Features to know about

Haul Long Loads with Confidence: 1,250-lb Capacity and Over-Cab Cantilever

This rack is built for serious work and weekend hauling. The 1,250-lb carrying capacity and 1,000-lb rated cantilever extension give you solid support for long pipes, lumber, or kayaks. The over-cab extension adds 32" of extra length so your load stays supported end-to-end. Even when you’re stacked with full-length boards or gear, the wide base and over-cab design keep everything stable above the bed.

Thule TracRac cantilever over-the-cab extension installed on a pickup truck, providing additional overhead support for long cargo.

Slide It to Fit Your Load: Adjustable T-Track Base Rails

The sliding design makes this rack more flexible than a fixed system. It moves along the full length of the truck bed on its built-in T-track rails, so you can position the uprights wherever you need them. When you’re hauling tall cargo, slide the rack sections together to clear the bed, leaving open space for bigger items. When you’re done, the whole rack can be removed quickly without tools.

Thule TracRac SR aluminum base rails installed on a truck bed, showing dual T-track channels for adjustable rack mounting.

Thule TracRac SR ladder rack sections slid together at the front of a truck bed to show unobstructed access when not in use.

Built to Last: Rustproof 6000-Series Aluminum with Dual Powder Coat

The rack, rails, and accessories are made from lightweight 6000-series aluminum that won’t rust or weigh down your load rating. A two-stage powder coat adds extra protection—first an e-coat base, then a clear top layer that resists scratches and scuffs. The result is a rack that handles weather, heavy use, and road grime without corroding or dulling over time.

Keeps Cargo Secure: Adjustable Load Stops and Side Cleats

Eight tie-down points come standard, including four aluminum load stops that slide in the crossbar slots and four side cleats on the uprights. The load stops lock in place with a twist knob to hold ladders, lumber, or other gear steady, while the cleats give you more ways to anchor straps for mixed cargo.

Thule TracRac adjustable aluminum load stops mounted on crossbars, used to secure ladders or lumber with integrated tie-down points.

Thule TracRac side cleats mounted on ladder rack uprights, offering extra tie-down points for securing cargo in a truck bed.

Quiet, Aerodynamic Design: Streamlined Crossbars with Airfoil Strips

The elliptical crossbars cut down on wind resistance and noise when you’re on the road. Built-in airfoil trip strips cover the slots to prevent the whistle you often get from open channel bars. The smooth profile not only looks clean but also helps with fuel efficiency and a quieter ride.

Specs

Weight and Capacity

  • Carrying capacity: 1,250 lbs
  • Capacity of cantilever extension: 1,000 lbs

Dimensions

  • Crossbar length: 69-1/2"
  • Rack height (with base rails): 32-11/16"

Warranty

  • Limited lifetime warranty

43003 Thule Track Rack SR Sliding, Truck Bed Rack

21510 Thule Track Rack Base Rail SDS - Short Bed Ford Super Duty Trucks

24002 Thule Track Rack Cantilever Over-the-Cab Extension - Full Size

Replaces TracRac TA21510-03-02

Installation Details TH43003XT-510EX Installation instructionsAlternate Instructions TH43003XT-510EX Installation instructions

This Product Fits The Following Vehicles




Ratings & Reviews

4.7

91 reviews
Review sort icon
This versatile, sliding ladder rack adjusts along the length of your truck bed and easily removes from the included T-track base rails. Over-the-cab extension lets you carry long pipes, lumber, and more. Lightweight, rustproof aluminum construction.

by:

I ordered, received and installed the trakrack ladder rack with cab extension. Etrailer I highly recommend as their service is excellent. I always buy from them. Since this product is aluminum, I did have a problem with some screws getting stripped but Etrailer fixed the problem. Once again excellent service. The ladder rack is sturdy and looks great. It is also light weight. It can be removed and adjusted to different lengths. It's a wow. I did add some bolts to the rails for my own confidence that it is bolted to the truck bed. Two words....buy it.



by:

All trucks made in the last 10 years have varying width beds. The installation instructions state that the sliding rail bases must be exactly the same width along the trucks bed rails. This is impossible to do without having them extend over the rear bed rails, and the front rails extending inside the bed rails. My Chevy truck has a 2" differential in bed width at the front and rear. TracRac needs to take these dimensions into consideration when designing the next version of the sliding rail kit. Instead of drilling a ton of holes in the rails at the factory, let us drill our own, so we can line up the rails as we see fit. It would also be nice if you would design the bottom of the inside-front rails to include a recessed notch for us guys that have roll n lock bed covers. Then we could set the rails on top of the roll-n-lock cover, thus allowing better rail alignment, down the truck rails.



by:

This has been one high quality truck rack. It went together reasonably well, has carried a variety of work and recreational loads for me around town and on the hwy. The design is very strong and flexible on my 6ft box and I love being able to slide rails forward or off based on access and truck load needs. It has also has very little road noise and fit reasonably well with my existing tanneau cover.

I had one tighten down knob break on impact (my fault and easily replaced at the hardware store) and my only product concern has to do with the sticky style leveling/mounting shims which have all but wiggled loose at this point. I will soon need to place some more permanent shims that can be anchored to the underside of the rails or on to my truck or something. It looks like I will have this for many more years.



by:

Great service and fast shipping and handling. Melissa T. Was very helpful finding answers to compatibility questions with other components. Site has great video reviews on their products. Definitely recommend them!… Best prices too.



by:

Great transaction and shipping was earl y.



by:

Its an excellent rack system. The only complaint I have that keeps it from 5 stars is the knobs to lock the slides in place are difficult to use due to the shape, I'd prefer a wind nut style for leverage and the hardware corroded substantially within 6 months and everything had to be removed and cleaned and reinstalled with antisieze to keep everything operational. Other than that it is an awesome set up and gets the job done.



by:

Shipping was quick As described Easy to assemble. Wish the kit had one set of directions so I wouldn't have had to take the front rack apart after the fact. The final bolts for the canteleaver seem to be a damage/ scratch hazard.
Looks pretty slick though.



by:

Does the trick. Benefits from occasional tightening and adjustment. The sliding vertical brackets on top are finicky. Very handy attachment points for bungees and straps.



by:

Product is great and installed easily once I figured out that for my Ram 1500 Laramie, the pocket stakes are too big for the rubber blocks and won't work and I did have to drill thru the plastic molding. Once I figured out the stake holes wouldn't work I looked at the drawing again and the holes where Tundra is listed gave me the idea to try those. Those holes worked on the Ram and I ended up drilling out the "spikes" that hold the molding onto the sheet metal. No drilling thru the sheet metal was required, only the plastic.

Maybe I missed an install video for the Ram, it would have made the install much quicker and I wouldn't have to buy covers for my now cut out front stake pocket holes which weren't covered by the rails as I hoped they would.

I haven't installed the cantilever as I don't need it yet.



by:

The rack system is very well put together. I only had a couple of issues with the instalation.
There wasn't any directions with the base rails, so it took a bit to figure out how it went together and what holes to use for my truck.
The canteilever kit, The top bolt that holds the cross bar should be a button screw and square nut, not a square head bolt and nut. with the square head bolt and nut it could interfere with a long load since it sticks up and could catch on anything being loaded . All and all a nice rack.
I got this type of rack hoping that I could slide the rear post forward as to not interfere with my 5th wheel when towing it.
That part is yet to be dedurmined.



by:

I purchased the front rack with the cantilever over hang, toolbox track kit and rear rack and locking knobs.
Very happy with the final product.
Thanks.



by:

This is an awesome system, and in my opinion, the best option to pair with the Retrax ProMX bed cover. The sliding rails for adjustable distance is awesome. Can't beat the versatility of this rack, and after adding additional load stops for cantilever rail, bolt on ratchet straps, and base rail tie down points (which will actually allow me to haul things on top of my bed cover, which is rated to carry 500lbs) this system completely changes my ability to haul whatever I need in my truck.



by:

Great product, super easy install. No drill application is wonderful and fast so I can put it to work to pay for itself, less than 2 hr installation.



by:

The product was super easy to install and it’s very stout even though it’s technically a ladder rack. I am in the water well business and use it for hauling my pipe galvanized, PVC you name it. I did have a little issue with two of the uprights but nothing that couldn’t stop me from installing it, I reached out to the support team and Joshua B was extremely helpful. They sent out replacement parts with a few days to make it right with me. I greatly appreciate all of their help.



by:

I ordered the TracRac SR (sliding rack) for my 2019 Ram 3500. It took a while to get here, probably due to the current situation weall in. It came in 3 boxes on 2 days. (Just so you know what you'll be looking for) everything was packaged very secure in the boxes. I order the Cantilever with mine, so I had to swap out a couple parts. No big deal. Everything was explained in the instructions. It took me about 3 hours to install. The hardest part was getting the bed rails to align. I got them within 1/16th of an inch. Good enough.
The rack is a great addition to the truck. I stepped down from an 8ft bed to this 6ft 4in bed. So this was a necessity. The rack is solid. I'll be putting it to work right away



by:

The TH43002XT-781EX installed onto my 2016 GMC 2500 HD Sierra 6-1/2 bed Denali pickup truck without drilling any holes. Total install time including the cantilever took about 2 1/2 hours with two people. The tools we used included a wide range of metric hex keys, a crescent and some metric open-endeds.

The base rails mounted to the bed rails using a threaded aluminum insert for the rear stake pockets (which align with a thru-hole already present in the bed) and an expanding rubber bushing for the front stake pockets (since the front pockets don't have a thru-hole). Evidently some pickup rails cant to one side or another so the base rail install kit includes shims but my truck did not require them.

Once installed the rails are rock solid and subsequently the racks are also rock solid. The cantilever comes with replacement saddles that mount up to the rack with a total of 12 bolts making the ensemble nearly missile proof. Almost all bolts are pre-treated with thread locker.

My truck already has knobby tires so I did not notice any particular additional wind noise.

My plan for the TracRac is to attach a custom mounted Rhino-Rack, which we'll be doing ourselves.

I like this product because the fitment on etrailer was reliable and I did not have to drill any holes or use any special tools. The rack is also ridiculously heavy duty, which is more than up to the job of holding the Rhino-Rack I'm going to custom fit to it. We'll be doing some off-roading so this heavy equipment gives me a lot of confidence.

Thule always makes great products and I am delighted with the TracRac and I'm very happy with etrailer's site.



by:

Pretty good ladder rack. I like having the ability to slide the racks if needed. The install is doable. If you are installing the cantilever, make sure you swap out the top mount before assembling the top bar. The legs come pre-assembled with the regular top mount from the factory. The regular top mount has to be removed and the cantilever top mount installed to assemble the cantilever part of the ladder rack. Also, the bolts that hold the top mount on have loctite on them from the factory and are really hard to remove. I ended up stripping the bolts out. etrailer was very helpful and sent me a replacement hardware kit with all the bolts needed to finish the install. Between the directions provided and a few YouTube videos, the install was pretty straightforward. I am very happy with the product overall.



by:

Great system
Fast shipping very res
ponsive



by:

Love it! kayaks, ladders anything too long to fit in a five and three-quarter bed go on the ladder rack. It slides out of the way when I have big bulky things like refrigerator to put in the back of the truck. And I got to keep the tonneau cover that came with the truck.



by:

I just received the Thule rack, so have not installed them yet. The service from etrailer was outstanding!



by:

I bought these for my 2018 Ford F 150 5.5foot bed.
These are definitely one of the more expensive ladder racks you can buy but totally worth it. Very high quality and easy to install. I bought these for the ease of removal.
I use etrailer.com for all my vehicle needs.



by:

Good quality material.
Fast shippi
ng



by:

The parts came in on time and Lauren stayed in contact with me throughout the whole process. She is incredible at what she does and my racks look great and function perfectly for my construction needs! Thanks etrailer!



by:

The movable rack let's it be mostly out of the way when not in use without removing from truck. The high load rating plus cantilever let's me haul long semi flexible objects (the flexing puts a significant strain on the rack)even with a shorter bed.



by:

The ladder rack is awesome +
It took
3 times to get the right parts -
Special thank you to Tiffini S. from customer support center, she was very professional and helpfull.


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See what our Experts say about this Thule Ladder Racks


Info for this part was:

Employee Tyler C
Edited by:
Tyler C
Employee Jameson C
Expert Research:
Jameson C
Employee Dustin K
Video by:
Dustin K
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Alex H
Updated by:
Alex H
Employee Matthew S
Written by:
Matthew S
Employee David F
Test Fit:
David F

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