XO.SKLTN Topper Panel Side Braces – 3075, Both Sides (15 Series)

Name: XO.SKLTN Topper Panel Side Braces – 3075, Both Sides (15 Series)
Brand: Xtrusion Overland
SKU: SKL-TP-SBC-52L-SHM
Availability: InStock

$200.00 USD

Xtrusion Overland | SKU: SKL-TP-SBC-52L-SHM

Lead Times

Current Lead Times:

Please Note That All Lead Times Are Estimations*

XO.SKLTN | 10-12 weeks
XTR1, XTR3 & XBRS Bed Racks | 4-7 weeks
Extrusion Sub-Structures | 3-4 weeks
Xtrusion Branded Accessories | 1-2 weeks
Trailgates | 2-3 weeks
Custom Powder Coat Colors | Allow up to 2 additional weeks

Our posted lead times are only estimations and rely on various factors, many times outside of our control. Historic challenging times within our industry have caused ripples in the supply chain world that have repercussions even on the smallest of components at times. As you would imagine, many companies in our industry are experiencing the same.

Our bed racks are super cool, with the ability to be customized. But this causes a series of challenges due to the thousands of possible combinations regarding compatibility, availability, etc. However, we are constantly aiming at improving our processes, hiring and training our people to achieve a reliable fulfillment process.

If you have additional questions about our lead times, please check our current estimations and reach out to our team if you need additional information. We thank you for your continued support and patience as we improve our processes.

While we would do our best to accommodate a specific need, please do not plan any trips or outings based on the estimated lead times.

THIRD PARTY PRODUCTS

Xtrusion Overland started supplying various brands that go hand in hand with our own products, to provide a complete service and help us grow. This includes products that are drop shipped. Please be advised that availability and lead times of those product are solely impacted by the third-party vendor's schedule. Many products are sold under an open inventory method, as the technology to sync inventories is limited, therefore please reach out if a specific product is needed by a specific date for us to double check with the supplier for you!

Any potential delay that occurs in the sourcing, processing, or drop shipment at the third party level will be communicated to the best of our ability to the customer.

ESTIMATED DATE | LEAD TIMES

The estimated lead time provided when you placed your order is JUST AN ESTIMATE. It is not a guarantee that the product will be shipped on that date. The estimated lead time gives you some sense of what the current times to source, cut, pack and ship takes. Many times the lead time can be shorter, but likewise it can extend, depending on factors such as previous demand and current supply. We manufacture many components in house, but extenuating circumstances such as down time for maintenance or unscheduled downtimes for repairs might impact dates as well as delays related to our sourced components. There is a constant flow of parts and shipments, and sometimes the visibility becomes a challenge to pinpoint exactly when your product will ship.

Feel free to check on your order at any time. Be aware that our customer service team may not be able to give you an exact date for completion but rest assured we are tracking your order and it will be built in the order that it was received.

Xtrusion Overland also reserves the right to cancel items from an order, offer an alternative substitution or issue refund accordingly when product is delayed at an unacceptable time frame or at the request of the customer.

Rack Angle Guide

Overland Rack Angle Compatibility

One Angle.
Every Build.

XTR bed racks use three rack angles — 9°, 13°, and 20° — each matched to specific vehicle setups and accessory families. Find the right angle for your build so every rail, crossbar, and mounting kit lines up perfectly.

Engineered quality

CNC billet strength

We didn't just join the strong extrusions with some sheet metal corner brackets — we put the aluminum where it makes a difference. Every angle variant uses the same 6061-T6 Aerospace grade billet, machined to precision to join all components with exact angular alignment.

✓ All three angles share the same billet standard
✓ 9°, 13°, and 20° brackets machined to exact specs
✓ No sheet metal corners — pure aerospace aluminum

CNC billet corner brackets for XTR bed racks — available in 9°, 13°, and 20° angles

Quick Reference

Angle Compatibility

Rack Angle	Product Line	Compatible Accessories
9°	Gladiator Series	All Gladiator bed racks (XTR1, XTR3 and XBRS), Gladiator mounting kits, Gladiator-specific crossbars, including Softopper versions on Gladiator.
13°	Soft Topper Series	Soft Topper bed racks for all truck models (except Gladiator).
20°	Universal / Crossbars	All XTR1, XTR3, XBRS Bed Racks, universal mounting rails, standard rack accessories (except Gladiator or Softopper)

9° angle

Gladiator Series

The 9° angle is dedicated to the Gladiator product line. This angle was engineered specifically for Gladiator rails and their mounting geometry, ensuring a flush, secure connection between your rails and any Xtrusion add-on accessories. This includes Softopper Gladiator Builds and XBRS for Gladiator.

Xo Skeleton Note: The XO.SKLTN Uses a complete different system not to be confused with Gladiator XTR 9 Degree components.

13° angle

Soft Topper Series

The 13° angle serves Soft Topper products. This intermediate angle provides the right compromise between load clearance and low profile when mounting accessories to Soft Topper rails and their compatible hardware.

Crossbars: XTR1 and XTR3 use 13° when mounted on Soft Topper setups.

20-degree universal rack crossbar — XTR universal and crossbar series

20° angle

Universal / Crossbars

The 20° angle is the default for all other Xtrusion products — universal mounting rails, standard crossbars, and general overland rack accessories. This is the most common angle in the industry and works with the widest range of roof rack and truck bed rack systems.

XBRS: XBRS crossbars use 20° components, the same as XTR1 and XTR3, so the joints stay compatible if you upgrade to a full rack. The one exception is XBRS for the Jeep Gladiator, which uses 9°.

Quick Reference

Xo Skeleton — Angle Breakdown

The Xo Skeleton uses two angles Gladiator Specific or Universal. However, some accessories might be compatible with both, because the top rail consolidates both angles into one. Crossbar mounts or awning mounts are compatible with both versions.

9° Angle

XOSKLTN Gladiator

Gladiator rail mounts
Gladiator-specific hardware
Gladiator crossbar slots

13° Angle

XOSKLTN

Soft Topper rail mounts
Soft Topper mounting kits
Soft Topper crossbar slots

Note: The Xo Skeleton never uses the 20° angle.

How To Choose

The Right Rack Angle,
Explained

Every XTR accessory — crossbars, mounting brackets, add-on hardware — is cut for one specific angle. The right angle depends on your primary rail system or vehicle setup. Choosing the matching angle ensures every component in your build aligns correctly and carries load as designed.

Identify your rail system. Gladiator = 9°, Soft Topper = 13°, universal = 20°.
Check your crossbar type. XTR1/XTR3 come in all three — order the one matching your rails.
Stick to one angle per build. Mixing angles creates misalignment and stress points.

What determines the rack angle I need? +

Your rack angle is determined by your primary rail system or vehicle setup. Gladiator rails use 9°, Soft Topper setups use 13°, and universal or standard rack accessories use 20°. Choosing the matching angle ensures every accessory — crossbars, mounting brackets, and add-ons — aligns correctly.

Can I use a 20° crossbar with a Gladiator rail? +

No. Gladiator rails are engineered for 9° accessories. Using a 20° crossbar on a Gladiator rail will result in misalignment and improper load transfer. Always match your crossbar angle to your rail system.

Do Soft Toppers and Gladiator rails use the same angle? +

No. Soft Toppers use a 13° angle while Gladiator rails use a 9° angle. These angles are not interchangeable. If you're building with both types, you'll need separate angle-specific accessory sets.

Are XTR1 and XTR3 crossbars angle-specific? +

XTR1 and XTR3 crossbars come in three angle variants — 9°, 13°, and 20° — to match each rack system. The 20° variant is the default and works with universal racks. The 13° variant is used when paired with Soft Topper setups. Order the angle that matches your primary rail system.

Why do overland racks use different angles? +

Different rack angles exist to accommodate varying vehicle roof geometries, rail profiles, and load requirements. The 9° angle works well with Gladiator-style tubular rails. The 13° angle provides a middle ground for Soft Topper mounting systems. The 20° angle is the industry standard for universal applications and offers maximum load clearance.

Description

XO.SKLTN 3075 Topper Side Braces put one heavy-duty bar across each topper door (the hinged side panels), driver side and passenger side, so you can hang MOLLE panels, cases and camp gear on the outside of your truck cap. Each bar is 3/4" x 3" 3075 extrusion with two 15-series T-slots on the outer face. It bolts to the vertical extrusions at each end of the door with drop-in T-nuts, so there’s no drilling.

Running XO.SKLTN MOLLE panels on both sides? This is the kit for it. The 3075 is our strongest topper side brace, and a MOLLE panel bolts on with four 5/16-18 screws, two in each T-slot.

3075 or 1050: which topper side brace do you need?

3075 kit (this one): 2 bars, one per door, so one kit covers both sides. 15-series (5/16-18) accessory hardware. Best choice for MOLLE panels.
1050 Side Brace Pair: 2 lighter bars, upper and lower, for one door. The spacing adjusts, so a 4-point accessory can bolt straight to the bars. 10-series (1/4-20) hardware. Order two pairs for both sides.
Using your XO.SKLTN as a bed rack without topper panels? You want the XO.SKLTN Bed Rack Side Braces.

What’s included

2 × 3075 topper side brace bars (3/4" x 3"), one per door
4 × brackets, Billet CNC or Sheet Metal (your choice)
Bracket-to-bar and bracket-to-door hardware: M6 button head screws, 1/4-20 socket head cap screws, 10-series drop-in T-nuts

Accessory hardware isn’t in this kit. It comes with your accessory (pick the 15 Series option on XO.SKLTN MOLLE panels), or order 15-series T-nuts and 5/16-18 screws below.

Billet or sheet metal brackets?
Billet CNC brackets come in handed driver and passenger pairs with fixed door holes, so the bar length centers the brace for you. Sheet metal brackets use one part at every end with slotted door holes; you slide the brace fore and aft to center it, then tighten. Jeep Gladiator owners: sheet metal brackets only. The Gladiator XO.SKLTN’s angles don’t work with the billet bracket.

Choosing your length
Select your truck’s bed rail bar length. To check it, measure the bottom 1530 extrusion (BDRL) that runs along your bed, as shown below. The braces come out 6.4" shorter than that number. For example, a 61" F-150 5.5' bed gets 54.6" braces.
[existing measurement image]

⚠️ MEASURE BEFORE YOU ORDER

Side braces must match the length of your XO.SKLTN frame. Measure the bottom 1530 extrusion (BDRL) that runs along your bed and choose the length that matches.

Three XO.SKLTN frames were recently made longer. If you have one of these, the right brace depends on when your rack was built:

Ram 1500 Short Bed (5'7"): 60" for earlier frames, 61" for current frames
Silverado/Sierra 1500 Medium Bed (6.5'), 2018 and older: 72.8" for earlier frames, 73.5" for current frames
Silverado/Sierra 2500HD/3500HD Medium Bed (6.5'), 2001–2007: 72.8" for earlier frames, 73.5" for current frames

Not sure which you have? Send us your original order number and we'll confirm the size before you order: support@xtrusion-overland.com · (316) 330-0024

Install
Brackets go on the bar ends, then the bar bolts to the door at mid-height. Level it, tighten, and check that the door still opens fully and latches. You’ll need a 4 mm and a 3/16" Allen key. Step by step: XO.SKLTN Side Brace Kit assembly instructions (PDF)

FAQ (collapsible)

Do I need to drill my topper? No. The brackets bolt to the door’s vertical 10-series extrusions with the drop-in T-nuts in the kit. Your topper needs to be assembled first.
How much weight can a topper door carry with a side brace? The standard struts are rated at 50 lb of push force each. With struts upgraded to 90 lb each, a door can carry about 80 lb of actual load, brace and MOLLE panels included, depending on where the weight sits. Contact us about stronger struts.
Can I mount gear other than MOLLE panels? Yes. Anything with a 5/16" hole bolts to the 3075 with 15-series drop-in T-nuts and 5/16-18 button head or socket head screws.
Can I use 10-series T-nuts in the 3075 bar? No. The 3075 takes 15-series T-nuts only. The 10-series T-nuts in the kit go in the door extrusions.

Complete your setup

XO.SKLTN MOLLE Panels with the 15 Series (3075) attachment hardware option
5/16-18 drop-in T-nuts, 15 Series and 5/16-18 button head cap screws for your own mounts
XO.SKLTN Gear Cage
XO.SKLTN Topper Crossbars
All XO.SKLTN topper and bed rack parts

Questions? Call (316) 330-0024 or email support@xtrusion-overland.com.

Made in the USA: designed and built by Xtrusion Overland in Wichita, Kansas, and backed by our Limited Lifetime Warranty (lifetime on structural parts for the original owner; 2 years on finish and hardware).
XO.SKLTN is a product of Xtrusion Overland. Original listing: xtrusion-overland.com

To select your length, measure the bottom 1530 extrusion bar (BDRL) that runs the length of your bed as shown in the picture below.

NOTE: Side Braces will be -6.4" of selected length.

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