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CURT
These rails fit any truck, but the mounting brackets that bolt them to your frame are vehicle-specific. Select your vehicle to find the custom-fit bracket kit for an easy, no-drill installation.
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Includes mounting bolts, two base rails and four universal brackets #16101
Includes mounting bolts, two base rails and four universal brackets #16101
Warranty: Limited Lifetime Warranty (One-Year Finish, One-Year Parts)
Finish: GLOSS BLACK POWDER COAT
Installation Time Exact (Minutes): 0
CURT 5th wheel base rails are industry-standard, meaning they can be used with any 5th wheel trailer hitch with industry-standard anchoring points. They are compatible with virtually all CURT 5th wheel trailer hitches and many competitors. Installation of CURT universal 5th wheel base rails is quick and simple. They mount with high-strength hardware, providing a solid mounting place for a new 5th wheel hitch. 5th wheel base rail bolts and other hardware can also be purchased separately to aid in reinstalling used rails. To protect our 5th wheel base rails from corrosion, scratches and UV damage, we coat each one in a co-cured finish of A-coat and powder coat. This gives them the tough skin they need for hauling that RV trailer, flatbed or other heavy-duty trailer and gives you the confidence to tow wherever the horizon leads. This set of 5th wheel rails is rated for 25,000 pound gross trailer weight and has a gloss black finish. Knowing that your 5th wheel trailer hitch is properly mounted in your truck bed is vitally important to the success of your towing. Without a firm attachment point, a 5th wheel hitch is rendered useless to your tow vehicle. When you choose a 5th wheel hitch for your pickup, install it with confidence with a CURT 5th wheel bracket kit and a set of CURT 5th wheel base rails.
CURT offers a variety of high-quality trailer hitches and accessories for select vehicle models. Find the perfect fit for your towing needs at TowUniverse.
CURT, a Lippert brand, offers a complete line of towing products and is the leading manufacturer of custom-fit trailer hitches. We offer the broadest selection of custom-fit hitches, and each one is designed, welded, and coated in Wisconsin.
CURT is also a leader in flat towing products, as well as 5th wheel, gooseneck, and weight distribution hitches, ball mounts, electrical components, cargo solutions, and other towing accessories.
For everything from passenger cars and vans to full-size pickups and SUVs, CURT is 'The First Name in Towing Products®.'
Experts available to answer your questions
Call 888-634-9494Rediscover "Us" Time | Tested. Proven. Safe. Towing Products
CURT offers two versions: the 16100 in gloss black and the 16200 in carbide black. The manual does not specify functional differences between the two finishes; they appear to be the same product in different colors.
The CURT 16100 fits multiple Chevrolet Silverado model years: Silverado Classic 88–98, Silverado 1999 (excluding Classic), Silverado 00–10 (including HD models), and Silverado 1500, 2500, 3500 2011 and newer. Confirm your exact year and model, as installation instructions vary by generation. Consult the vehicle-specific installation pages in the manual for your model year.
The CURT 16100 fits Ford F-150 models from 1997 onwards, but fitment varies by year and generation. F-150 / F-250 97–03 (8,500 max GVW) and Heritage Edition 2004 are supported. F-150 04–14 (excluding Heritage Edition) requires the additional #16300 bracket kit. F-150 and F-250 through 1996 are also supported. Consult the vehicle-specific installation pages for your exact model year.
The CURT 16100 fits multiple Dodge Ram model years, but fitment and required kits vary significantly. Dodge Ram 1500 02–08 and 2500 03–12 (without overload brackets) are supported with the base kit. Dodge 2500 / 3500 with overload springs 03–12 requires #16301 bracket kit. Dodge 1500 / 2500 without overload springs 02–08 requires #16303 custom bracket kit. Dodge Ram 1500 09–10 and 11–18 (without factory air suspension) requires #16305 custom bracket kit. Older models (1994–02) are also supported. Confirm your model year and suspension type before purchasing.
The CURT 16100 fits Toyota Tundra standard cab 00–06 (long box only) with the required #16302 spacer kit. For Tundra 07–08 excluding CrewMax (6.5' and 8' beds), the #16304 add-on kit is required in addition to the base #16100 kit. Short bed Tundra models are not supported.
Yes, the CURT 16100 fits Dodge Dakota 94–04. Installation requires cutting 1" from the top flange of the brackets and mounting them under the bed with flanges facing out. Rear brackets must be positioned on row 3 for 1997 and later models, and on row 4 for 1996 and earlier models.
No. Plastic bed liners must be cut out of the way before installation. The base rails cannot be installed over plastic bed liners. Spray-on liners are acceptable, but you should consult an installer for curing times before proceeding.
Required tools are: torque wrench, socket set, drill, 3/16" drill bit, 7/32" drill bit, 17/32" drill bit, 3/4" wrench, 3/4" socket, and C-clamps. Some Dodge applications also require a 1" drill bit. The manual notes that proper tools will improve installation quality and reduce time required.
The base kit includes: 2 base rails, 1 long mounting bracket right, 1 short mounting bracket right, 1 short mounting bracket left, 1 long mounting bracket left, 10 U-shaped spacers (5/16"), 8 ribbed neck bolts (1/2" - 13 x 1-1/2"), 10 carriage bolts (1/2" - 13 x 2"), 18 lock washers (1/2"), 18 hex nuts (1/2" - 13), 10 flat washers (1/2"), 2 round hole spacers (1/2" x 1-1/4" x 2-1/2"), 2 carriage bolts (1/2" - 13 x 4-1/2"), 2 round tube spacers (1" OD x 14 GA, A-513), and 1 fish wire.
Custom mounting brackets are required for some installations. Specific vehicles requiring additional kits include: Ford F-150 04–14 (requires #16300), Toyota Tundra 00–06 (requires #16302), Dodge 2500 / 3500 with overload springs 03–12 (requires #16301), Dodge 1500 / 2500 without overload springs 02–08 (requires #16303), Dodge Ram 1500 09–10 and 11–18 without factory air suspension (requires #16305), and Toyota Tundra 07–08 (requires #16304). Consult the vehicle-specific installation pages for your model.
Yes. You must raise the rear of the truck high enough to place jack stands under the rear spring hanger bracket. This provides maximum space to install the 5th wheel brackets. If the truck is raised, it must be properly blocked and restrained to prevent it from falling, which could cause death or serious injury.
Center the 5th wheel hitch between the fender wells and ensure the base rails are square. Measure diagonally from the same reference point on both sides; the measurements must be equal. Adjust the position of the rails until both diagonal measurements are the same. This ensures smooth operation of 5th wheel roller units. Use the mounting channel / cross member assembly (sold separately) to help position the base rails.
For long bed trucks, the center of the hitch should be at least 52" from the back of the cab to prevent the trailer from hitting the cab when turned 90°. The actual distance depends on trailer width and king pin location. Short bed trucks (38" minimum from back of cab to axle center line) require a minimum of a 13" extended pin box for regular maneuvers; the 52" measurement does not apply to short beds.
Yes. You must drill 10 holes in the truck bed and frame. Drill all holes first with a 3/16" drill bit, then enlarge them with a 17/32" drill bit. You must also drill two holes in the frame for each bracket. Some vehicle applications require additional drilling. Always check for obstructions (fuel lines, brake lines, structural members) before drilling to prevent damage.
The 17/32" drill bit size is critical because rib neck bolts may break if too small a hole is drilled, and they may not grip if too large a hole is drilled. Using the correct size ensures proper bolt function and prevents installation failure.
Yes. Do not drill in the approximately 4" area between parallel rows of bed sill spot welds where the bed sill sits. This restriction applies to Chevrolet Silverado Classic / GMC Sierra Classic, Chevrolet Silverado / GMC Sierra 1999–10, Chevrolet Silverado 2011 and newer, Dodge Dakota, and other vehicles with spot-welded bed sills. Identify the parallel rows of spot welds before drilling.
No. On most applications, do not drill through both walls of the frame. Drill only through the wall to which the bracket is mounted. This applies to Ford F-150 04–14, Dodge Ram 1500 02–08, Dodge 2500 / 3500 with overload springs, and Dodge 1500 / 2500 without overload springs.
Yes. For Dodge Dakota 94–04, cut 1" from the top flange of the brackets. Mount the brackets under the bed with flanges facing out. Rear brackets must be positioned on row 3 for 1997 and later models, and on row 4 for 1996 and earlier models.
Yes. For Chevrolet / GMC 4-door 73–87 / 73–92 (34" straight with outside shock absorbers), install a spacer with a 1/2" hole between the frame and bed. Cut the provided tube spacer down to fit snug between the frame and bed.
Yes. For Dodge Ram 1500 09–10 and Ram 1500 11–18 (without factory air suspension), it may be necessary to notch the ends of the bed sill in row 3 to allow access to and bolting down of base rail hardware.
Torque specifications are: 1/4" bolt 122 in-lbs., 5/16" bolt 251 in-lbs., 3/8" bolt 37 ft-lbs., 7/16" bolt 59 ft-lbs., 1/2" bolt 106 ft-lbs. Use these settings unless otherwise noted in vehicle-specific instructions. Most carriage bolts and rib neck bolts in the base installation are torqued to 110 lb-ft.
Torque all carriage bolts (#8) through the mounting brackets and truck bed to 110 lb-ft. Torque all rib neck bolts (#7) to 110 lb-ft after tightening the nuts until the bolt heads seat.
No. Do not lubricate bolt threads. Lubrication may cause bolt failure. However, lubrication of the knurls of all rib neck bolts is recommended.
For Chevrolet / GMC 4-door 73–87 / 73–92 (34" straight with outside or inside shock absorbers), do not torque to 85 lb-ft. Instead, tighten the bolts but do not crush the bed sill. This is a special restriction for these older vehicles due to bed sill design.
For Dodge Ram 1500 02–08, Dodge 2500 / 3500 with overload springs 03–12, and Dodge 1500 / 2500 without overload springs 02–08, when using the tube spacer and 4-1/2" carriage bolt to attach through the bed sill, drop the tube spacer through the hole in the truck bed when torquing the bolt to avoid crushing the bed sill. The manual does not specify a different torque value for this application.
1. Drill 10 holes in the truck bed and frame. 2. Insert 1/2" - 13 x 2" carriage bolts into each hole. 3. Insert 5/16" U-shaped spacers above or below the truck bed to fill corrugations. 4. Install mounting brackets over the carriage bolts (long brackets on front bolts, short brackets on rear bolts). 5. Secure carriage bolts through brackets with flat washers, lock washers, and hex nuts; torque to 110 lb-ft. 6. Drill two holes in the frame for each bracket. 7. Install eight 1/2" - 13 x 1-1/2" ribbed neck bolts with threads pointing outward, lock washers, and hex nuts; torque to 110 lb-ft.
Yes. Long and short mounting brackets can be interchanged as needed, except where vehicle-specific instructions specify otherwise. However, standard practice is to install long brackets on the front bolts and short brackets on the rear bolts.
The fish wire (#15) is used to pull the rib neck bolts through the frame as needed during installation. This is particularly useful on vehicles where frame access is limited or where bolts must be pulled through from the bottom of the frame.
Insert 5/16" U-shaped spacers (#6) above or below the truck bed to fill corrugations in the bed floor. For Toyota Tundra 00–06, stack one 3/16" and one 5/16" U-shaped spacer to avoid crushing the truck bed. The spacers prevent the bed from being crushed by the carriage bolts.
Install eight 1/2" - 13 x 1-1/2" ribbed neck bolts (#7) with the threads pointing outward, lock washers (#9), and hex nuts (#10). Use the provided fish wire (#15) to pull the rib neck bolts through the frame as needed. Tighten the nuts until the bolt heads seat. Lubrication of the knurls of all rib neck bolts is recommended. Torque all nuts to 110 lb-ft.
On vehicles with heavy-duty suspensions, check for interference with the bolts where the brackets are mounted to the frame. If there is interference with the suspension springs, cut the bolts flush to the nut outboard of the frame or use the optional weld option instead of bolting.
The manual shows optional weld patterns on vehicle-specific installation pages (marked with asterisks). These allow you to weld the brackets to the frame instead of bolting them. This option is useful when bolting is not feasible due to space constraints or interference with suspension components. The manual notes that on Dodge vehicles with tubular frames, extra caution is needed when using the optional welding due to thinner walls.
Ford F-150 04–14 (excluding Heritage Edition) requires the #16300 bracket kit. Key steps: 1. Remove the jounce block from the bottom of the frame on both sides. 2. When brackets are in place, one of the front two holes should line up with a hole in the frame; drill the frame at the rearward bracket hole. 3. Use the provided fish wire to pull carriage bolts with bolt plates through the hole in the bottom of the frame where the jounce block was removed and through the rear hole in each bracket. 4. On forward brackets, use a carriage bolt, spacer, and 1" washer; on rearward brackets, use a carriage bolt, spacer, and 13/16" washer. 5. Replace the jounce block. 6. Drill two center holes and eight holes for the round tube spacer. Install 1/2" carriage bolts, U-shaped spacers, and bolt plates with washers and nuts.
For Dodge Ram 1500 02–08 (without overload brackets): 1. Drill through the bed sill with a 17/32" drill bit. 2. Open up the hole through the truck bed only with a 1" drill bit. 3. Use the provided tube spacer and 4-1/2" carriage bolt to attach through the rearward bed sill (row 3). 4. Drop the tube spacer through the hole in the truck bed when torquing the 4-1/2" carriage bolt to avoid crushing the bed sill. 5. Position brackets in row 2 against the rear side of the bed sill. 6. Use the provided fish wire to pull rib neck bolts through access holes in the frame. 7. Avoid drilling inside the frame on the passenger side; optional custom bracket #16303 can be purchased to avoid this.
Toyota Tundra 07–08 (excluding CrewMax, 6.5' and 8' beds) requires the #16304 add-on kit used with the #16100 base kit. Key steps: 1. Install long brackets on the front base rail and short bracket on the rear driver-side base rail using 1-3/4" carriage bolts from the #16304 kit. 2. For row 3 attachment, place a tube spacer inside the bed sill on top of the frame and under the bottom of the bed; drill through the bed and top of the frame on both sides. 3. For row 4 passenger-side attachment, stack two 1/2" spacers and a beveled washer; use a 3" carriage bolt with another beveled washer, conical toothed washer, and hex nut. 4. The rear rail on the passenger side is secured directly to the frame with 3" carriage bolts from the #16304 kit. 5. All other attachments to the bed use 2" carriage bolts from the #16100 base kit.
Never exceed the vehicle manufacturer's recommended towing capacity. Additionally, if the truck is raised during installation, ensure it is properly blocked and restrained to prevent it from falling, which could result in death or serious injury. Always measure the truck and trailer before installing the hitch to ensure there is clearance at the cab and bumper to allow for turns.
Before drilling, check for obstructions such as fuel lines, brake lines, and structural members. Failure to check for obstructions could result in damaged fuel or brake lines, structural members, or other vehicle components. This check is critical and must be performed on all drilling locations.
If the truck is raised, ensure it is properly blocked and restrained to prevent it from falling. Failure to do so may result in the truck falling suddenly, causing death or serious injury. Use appropriate jack stands under the rear spring hanger bracket to provide safe support.
After installation, verify that: 1. All bolts are torqued to the correct specifications (110 lb-ft for most bolts). 2. Diagonal measurements from the base rails are equal to ensure smooth 5th wheel roller operation. 3. The hitch is centered between the fender wells. 4. The hitch center is at least 52" from the back of the cab on long bed trucks (or 13" extended pin box on short bed trucks). 5. There is clearance at the cab and bumper for turns. 6. All hardware is secure and no bolts are loose.
The manual does not provide specific maintenance instructions or retorque intervals. It recommends saving the manual for future reference and passing copies to any other user or owner of the hitch. Consult the manufacturer or a qualified installer for maintenance recommendations.
The CURT 16100 fits Chevrolet, GMC, Ford, Dodge, and Toyota trucks from 1973 onwards. Fitment varies by year, model, and generation. Some vehicles require additional bracket kits (e.g., #16300 for Ford F-150 04–14, #16302 for Toyota Tundra 00–06). Consult the vehicle-specific installation pages in the manual for your exact model year.
You need a torque wrench, socket set, drill with 3/16", 7/32", and 17/32" drill bits (1" for some Dodge applications), 3/4" wrench and socket, and C-clamps. Some vehicles may require additional tools.
Most bolts are torqued to 110 lb-ft. General specifications are: 1/4" bolt 122 in-lbs., 5/16" bolt 251 in-lbs., 3/8" bolt 37 ft-lbs., 7/16" bolt 59 ft-lbs., 1/2" bolt 106 ft-lbs. Consult vehicle-specific pages for exceptions.
Never exceed the vehicle manufacturer's recommended towing capacity. Always measure the truck and trailer before installing to ensure clearance at the cab and bumper for turns. If the truck is raised, ensure it is properly blocked and restrained.
Rib neck bolts may break if too small a hole is drilled. Use a 17/32" drill bit for frame holes, not a smaller size. Drilling with a 3/16" bit first and then enlarging to 17/32" ensures the correct final hole size.
Rib neck bolts may not grip if too large a hole is drilled. Use a 17/32" drill bit for frame holes, not a larger size. Drilling with a 3/16" bit first and then enlarging to exactly 17/32" ensures proper bolt grip.
Bolts may fail if bolt threads are lubricated. Do not lubricate bolt threads during installation, as this may cause bolt failure. Lubrication of the knurls of rib neck bolts is recommended, but not the threads.
Diagonal measurements from the base rails must be equal to ensure smooth operation of 5th wheel roller units. If measurements are not equal, adjust the position of the rails until both diagonal measurements are the same, measured from the same reference point.
The bed sill may be crushed if bolts are over-torqued. For some vehicles (e.g., Chevrolet / GMC 4-door 73–92), do not torque to 85 lb-ft; instead, tighten but do not crush the bed sill. For Dodge Ram vehicles using a tube spacer and 4-1/2" carriage bolt, drop the tube spacer through the hole in the truck bed when torquing to avoid crushing the bed sill.
On vehicles with heavy-duty suspensions, rib neck bolts may interfere with suspension springs where brackets are mounted to the frame. If interference occurs, cut the bolts flush to the nut outboard of the frame or use the optional weld option instead of bolting.
| Kit # | Base Rails Only # | Brackets & Hardware # | Capacity | Finish | Description |
|---|---|---|---|---|---|
| Base Rails & Brackets | |||||
| 16150 | -- | -- | 25,000 lbs. | Gloss black | Two rails, 4-bolt |
| 16100 | 16104 | 16101 | 25,000 lbs. | Gloss black | Two rails, 10-bolt |
| 16200 | 16204 | 16101 | 25,000 lbs. | Carbide black | Two rails, 10-bolt |
| -- | -- | 16205 | 40,000 lbs. | Teridium grey | Two rails, 10-bolt |
| Replacement Hardware | |||||
| 16111 | Installation hardware kit | ||||
| 16103 | Wheel bolts, qty 8 (for installing new brackets) | ||||
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