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2011 - 2019 Chevrolet Silverado 2500 HD
Confirmed to Fit
2011 - 2019 Chevrolet Silverado 3500 HD
Confirmed to Fit
2011 - 2019 GMC Sierra 2500 HD
Confirmed to Fit
2011 - 2019 GMC Sierra 3500 HD
Confirmed to Fit

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Want to take the family on a cross-country adventure? Or perhaps you're planning a shorter trip to your favorite campground. Whatever your destination, it's important to have the right equipment, especially when towing a fifth wheel trailer. To ensure proper hookup and safety while towing, you'll need something to attach your fifth wheel hitch in the bed on your truck. Many pickups come equipped with factory-installed rails or puck systems, but if you don't have one of these already installed, don't worry. REESE has an extensive line of mounting rails and bracket kits, custom-made to the exact specifications needed based on your truck's year, make, and model. REESE also offers several Industry Standard designs, as well as fastener kits, spacer kits, and a Power Puck mounting kit, so you can be sure you're covered, no matter what pickup you're using to tow. So make it easy. Make it fun. Make it REESE, so you can make the journey as enjoyable as the destination.
| BRAND: | REESE |
| PART NUMBER: | 50066 |
| WARRANTY: | LIMITED 10 YEAR WARRANTY |
| WEIGHT: | 22.1 LBS |
| UNIVERSAL OR SPECIFIC FIT: | SPECIFIC |
| WELDING REQUIRED: | NO |
| MOUNTING HARDWARE INCLUDED: | YES |
| RAILS INCLUDED: | NO |
| DRILLING REQUIRED: | YES |
| MATERIAL: | STEEL |
| BOLT GRADE: | GRADE 5 |
| LOCKABLE: | NO |
| COLOR: | BLACK |

Reese has designed towing equipment since 1952 and remains a benchmark for heavy-duty towing. The line covers fifth wheel hitches such as the modular M5, gooseneck couplers including the Goose Box, air-ride and short-bed pin boxes, weight distribution systems with active sway control, and the accessories that connect them, all built to exceed published industry standards.
Reese has been pioneering towing performance since 1952, when Margaret Reese asked her husband TJ to stop travel trailers rocking every time somebody walked through them. His answer, the first pair of stabilising jacks, was simple and effective enough to change the RV industry. From that starting point Reese grew into a designer and manufacturer of complete towing systems, and today it anchors the heavy-duty end of the Horizon Global towing portfolio.
Fifth wheel towing is where the brand's engineering is most visible. The M5 fifth wheel hitch uses a modular design that breaks into manageable sections for assembly, with a wider stance, tighter tolerances and a shock absorption system aimed at the jolts that travel up through a truck bed. For owners who would rather tow from a gooseneck coupler and keep the bed clear, the Goose Box 20K replaces the trailer's king pin with a gooseneck connection carrying its own air-ride cushioning.
Pin boxes are a Reese speciality. The 5th Airborne uses air-ride technology to dampen road shock and reduce the chucking motion that makes fifth wheel towing tiring, while the Sidewinder was designed for short-bed pickups, pivoting the connection point so the trailer can turn sharply without the front cap meeting the cab.
For conventional towing, Reese weight distribution systems restore load to the tow vehicle's front axle and control sway. The Pro Round Bar distributes weight evenly while damping sway, and the Pro Dual Cam II uses active cam-based sway control that works harder the stronger the sway force becomes. Complete kits pair bars, head and shank to a rated tongue weight, and dedicated sway control kits can be added to existing setups. The products suit RV owners, horse and livestock haulers and anyone towing near the upper end of a vehicle's rating.
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4 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2011 - 2019 | Chevrolet Silverado 2500 HD | Fifth Wheel Trailer Hitch Brackets Uses all existing holes. No Drilling required Install Time is 0 minutes Custom Quick Install Brackets |
| 2011 - 2019 | Chevrolet Silverado 3500 HD | Fifth Wheel Trailer Hitch Brackets Uses all existing holes. No Drilling required Install Time is 0 minutes Custom Quick Install Brackets |
| 2011 - 2019 | GMC Sierra 2500 HD | Fifth Wheel Trailer Hitch Brackets Uses all existing holes. No Drilling required Install Time is 0 minutes Custom Quick Install Brackets |
| 2011 - 2019 | GMC Sierra 3500 HD | Fifth Wheel Trailer Hitch Brackets Uses all existing holes. No Drilling required Install Time is 0 minutes Custom Quick Install Brackets |
Yes, the Reese Fifth Wheel Hitch Mounting System Custom Bracket RE50066 (Part #RE50066) is designed to fit the 2011-2019 Chevrolet Silverado 2500 HD.
The Reese Fifth Wheel Hitch Mounting System Custom Bracket RE50066 (Part #RE50066) fits 2011-2019 Chevrolet Silverado 2500 HD models. The 2019 model year is the last year covered by this part number. For newer models, check for an updated version.
The Reese Fifth Wheel Hitch Mounting System Custom Bracket RE50066 (Part #RE50066) fits the following vehicles: 2011-2019 Chevrolet Silverado 2500 HD; 2011-2019 Chevrolet Silverado 3500 HD; 2011-2019 GMC Sierra 2500 HD; 2011-2019 GMC Sierra 3500 HD. Always verify your specific year, make, and model before ordering.
The Reese Fifth Wheel Hitch Mounting System Custom Bracket RE50066 (Part #RE50066) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
Yes. The 50066 Custom Quick Install Mounting Kit is designed for Chevrolet/GMC 2500 and 3500 pickup trucks from 2011 and up, with either 6'6" or 8' beds. The kit includes two installation systems: a 10-bolt system and a 4-bolt system, each with different rail kits and fastener specifications.
No. The manual explicitly states: "DO NOT INSTALL THIS PRODUCT ON OR ATTEMPT TO TOW WITH A TRUCK WITH A BED THAT IS LESS THAN 6' LONG UNLESS A REESE™ SIDEWINDER PINBOX HAS BEEN INSTALLED ON THE TRAILER." If your trailer has a Reese Sidewinder pinbox, installation on a shorter bed is permitted.
Plastic bed liners must be cut away to provide metal-to-metal contact between the mounting rails and the truck bed. Spray-in bed liners are acceptable and do not need to be removed. The manual states: "Do not install mounting rails over plastic bed liners. Plastic bed liners must be cut out of the way to provide metal to metal contact. Mounting rails may be installed on spray in liners."
You need fastener kit 50066F. This kit includes all bolts, nuts, and washers required to attach the custom brackets to the frame. Additional fasteners for the mounting rails come separately with the rail kit (either 58058/30035 for the 10-bolt system or 30124/30095 for the 4-bolt system). If fasteners are missing from the rail kit, order service kit 58430 (for 10-bolt system) or 58406 (for 4-bolt system).
For the 10-bolt system: ¾" and 15/16" wrenches, 1/8" and 9/16" drill bits, center punch, and measuring tape. For the 4-bolt system: 15/16" wrench, 1/8" and 11/16" drill bits, center punch, and measuring tape. All fasteners must be supplied with the kit; do not substitute with other bolts, nuts, or washers.
Yes. Drilling is required. For the 10-bolt system, you must drill 1/8" pilot holes and enlarge them to 9/16". For the 4-bolt system, you must drill 1/8" pilot holes and enlarge them to 11/16". Holes are drilled through the truck bed floor at marked positions. A center punch is used to mark hole locations before drilling.
For the 10-bolt system (rail kit 58058 or 30035): drill 1/8" pilot holes first, then enlarge them to 9/16". Use a center punch to mark hole positions on the mounting rails before drilling.
For the 4-bolt system (rail kit 30124 or 30095): drill 1/8" pilot holes first, then enlarge them to 11/16". Use a center punch to mark hole positions on the mounting rails before drilling.
Yes, there is a risk. The manual warns: "On the driver's side of the vehicle the gas tank is located below the bed of the vehicle. When drilling holes through the bed be sure not to damage the fuel tank." Exercise caution when drilling on the driver's side of the truck bed.
Torque all 1/2" nuts to 75 ft-lbs. This applies to the fasteners connecting the rear and front mounting rails to the frame brackets in the 10-bolt system.
Torque all 5/8" Grade 5 nuts to 150 ft-lbs. This applies to both the 10-bolt and 4-bolt systems. Grade 5 bolts can be identified by their head marking.
Torque all 5/8" Grade 8 nuts to 212 ft-lbs. This applies to both the 10-bolt and 4-bolt systems. Grade 8 bolts can be identified by their head marking, which differs from Grade 5.
For the 10-bolt system (rail kit 58058 or 30035): position the rear mounting rail 24-5/8" from the rear edge of a 6'6" bed, or 29-3/8" from the rear edge of an 8' bed. Measure from the rail to the end of the bed using a tape measure, as illustrated in Figure 2A of the manual.
For the 4-bolt system (rail kit 30124 or 30095): position the rear mounting rail 24-11/16" from the rear edge of a 6'6" bed, or 29-3/8" from the rear edge of an 8' bed. Measure from the rail to the end of the bed using a tape measure, as illustrated in Figure 4A of the manual.
The pull wire assembly (Item 7) is used to guide the carriage bolt through the frame's access hole and out through the mounting hole. You screw the pull wire over the carriage bolt, insert the free end into the large access hole on the inside of the frame, then pull the threaded end of the bolt out through the mounting hole. The pull wire is then removed before installing the washer and nut.
Finger-tighten all nuts during the initial installation steps. After both the rear and front mounting rails are positioned and all bolts are installed, then torque all nuts to their final specifications: 1/2" nuts to 75 ft-lbs, 5/8" Grade 5 nuts to 150 ft-lbs, and 5/8" Grade 8 nuts to 212 ft-lbs.
The 5/16" thick U-shaped spacer blocks are placed between the frame bracket and the bottom of the bed, or between the mounting rails and the truck bed, to ensure metal-to-metal contact. This prevents the fasteners from being over-tightened and ensures proper load distribution.
Place the unassembled fifth wheel support arches, slider, or goose into the already-installed rear mounting rail. Position the front mounting rail by inserting the tabs into the mounting rail and pushing it tight towards the rear mounting rail. Ensure the front rail is centered on the bed. This positioning ensures the fifth wheel will have a snug fit to the truck. If multiple hitch products will be used, assemble both types at the same time to align the rear mounting rail properly.
For the 10-bolt system, use the second hole from the outside, as shown in Figure 2A. Mark these positions with a center punch, then drill 1/8" pilot holes and enlarge to 9/16".
For the 4-bolt system, use the center mounting hole, as shown in Figure 4A. Mark this position with a center punch, then drill 1/8" pilot holes and enlarge to 11/16".
For both the 10-bolt and 4-bolt systems, use the outside holes on the front mounting rail, as shown in Figures 2A and 4A respectively. Mark these positions with a center punch, then drill 1/8" pilot holes and enlarge to 9/16" (10-bolt) or 11/16" (4-bolt).
The 50066 mounting kit (with fastener kit 50066F) includes hardware to attach the custom brackets to the frame: 5/8" x 2" carriage bolts, square hole plates, serrated washers, and hex nuts. The rail kit (58058, 30035, 30124, or 30095) supplies the carriage bolts, spacers, washers, and nuts needed to attach the mounting rails to the frame brackets. Do not substitute fasteners; use only those supplied with the kits.
The primary warning is: "Under no circumstances does Cequent Performance Products, Inc. recommend exceeding the towing vehicle manufacturers recommended vehicle towing capacity." Always verify your truck's towing capacity and do not exceed it, regardless of the hitch rating.
Yes. The manual states: "Always measure truck and trailer before installing hitch to be sure that there is clearance at the cab and at the bumper to allow for turns." This ensures the trailer will not strike the cab or bumper during turning.
The manual does not provide a specific post-installation checklist. However, verify that all fasteners are torqued to specification (1/2" nuts to 75 ft-lbs, 5/8" Grade 5 nuts to 150 ft-lbs, 5/8" Grade 8 nuts to 212 ft-lbs), that the mounting rails are centered on the bed, that the fifth wheel has a snug fit, and that there is adequate clearance at the cab and bumper for turning.
Yes, the 50066 Custom Quick Install Mounting Kit is designed for 2011 and newer Chevrolet/GMC 2500 and 3500 pickups with 6'6" or 8' beds. Do not install on beds shorter than 6' unless a Reese Sidewinder pinbox is installed on the trailer.
You need fastener kit 50066F. For the 10-bolt system: ¾" and 15/16" wrenches, 1/8" and 9/16" drill bits, center punch, and measuring tape. For the 4-bolt system: 15/16" wrench, 1/8" and 11/16" drill bits, center punch, and measuring tape.
Yes, drilling is required. For the 10-bolt system: drill 1/8" pilot holes and enlarge to 9/16". For the 4-bolt system: drill 1/8" pilot holes and enlarge to 11/16". Plastic bed liners must be cut away; spray-in liners are acceptable.
Torque 1/2" nuts to 75 ft-lbs, 5/8" Grade 5 nuts to 150 ft-lbs, and 5/8" Grade 8 nuts to 212 ft-lbs. Finger-tighten all fasteners during assembly, then torque to final specifications after both rails are installed.
Do not exceed your vehicle manufacturer's recommended towing capacity. Always measure your truck and trailer before installation to ensure clearance at the cab and bumper for turning. Do not install on beds shorter than 6' unless a Reese Sidewinder pinbox is on the trailer.
Yes, plastic bed liners must be cut away to provide metal-to-metal contact. Spray-in bed liners do not need to be removed and are acceptable.
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George
Ordered online. Shipment arrived on time and with all the correct parts. Great customer service and friendly staff. Also, pricing was great!
May 22, 2023