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Complete CURT Class 3 2" trailer hitch and 5-flat wiring kit (with 4-way to 5-way adapter for surge brakes) engineered for the 1987 - 1996 Ford F-250 Old body with 10" drop bumper, excluding 1973 - 1979 crew cab Excluding flareside bed. Vehicle-specific fit, plug-and-play installation, all hardware and instructions included.
This custom kit fits the following vehicles:
All Hardware and Installation Instructions Included!
Whatever your task at hand -- whether it's launching that boat before daybreak, setting up your camper before the rush or getting a final load to the dump before close -- CURT class 3 trailer hitches offer the strength needed for serious towing. They make it easy to hitch up and Bring It, offering a vehicle-specific fit and the weight capacity to handle a variety of trailers. Custom class 3 hitches are the most common type of receiver hitch for pickup trucks and SUVs. Because of their weight range, they are also found on full-size cars, crossovers and minivans. Each custom-fit class 3 hitch package is made for vehicle-specific mounting. This particular kit fits older years of Ford, GMC and Chevy pickup trucks (see application info to verify vehicle compatibility). It provides a weight carrying capacity of 6,000 lbs. GTW and 600 lbs. TW. It is also compatible with a weight distribution hitch for level towing and a rating of 10,000 lbs. WD and 1,000 lbs. WDTW. CURT class 3 trailer hitches are typically used to attach and haul utility trailers, boat trailers, campers, snowmobile or ATV haulers and more (NOTE: Never exceed the lowest-rated towing component). Each class 3 hitch has a 2" receiver tube and is tested in accordance with SAE J684 for safety. To ensure that CURT class 3 receiver hitches have what it takes for serious trailering, they are designed using a hands-on approach and are constructed with rugged, high-strength steel and precise welding. We also protect our class 3 hitches in a co-cured finish of liquid A-coat and black powder coat for superior resistance to rust, chipping and UV damage.
If your vehicle is not equipped with wiring for towing a trailer, CURT custom wiring is the ideal solution. A custom wiring harness -- also called a T-connector -- is a simple, plug-and-play electrical device that plugs into your automotive electric system and provides a standard, universal trailer wiring connection. This is done using two or more vehicle-specific, OEM-compatible connectors to plug into the taillight assembly, eliminating the need for cutting, splicing and soldering during installation. Custom wiring harnesses are made vehicle-specific, and while they are not available for all vehicles, they do offer one of the fastest, easiest and most secure ways to wire a vehicle for towing. This particular plug-in harness provides a 4-way flat connector socket and is designed to be a custom wiring harness to fit certain years of the Ford F150, F250, F250 HD and F350 (to verify your vehicle compatibility, see application info). It comes with all necessary wiring components to establish a reliable trailer wiring connection, as well as a dust cover to keep the connector clean when not in use. You have a picture in mind of your next destination -- maybe it's the boat landing at your favorite fishing spot, maybe it's a campsite that overlooks one of nature's masterpieces, or maybe it's the next big jobsite. However, turning that picture into a reality takes more than just daydreaming. It takes a solid connection and the right amount of power. CURT custom wiring is made with some of the most sophisticated technology in the industry and is designed to install with ease, giving you a long-lasting electrical connection for your towing hitch setup.
Experts available to answer your questions
Call 888-634-9494Yes, part number 13099 is designed for 1963–1996 Ford Trucks (all full size, old body style only). Your 1985 F-150 is within this range and should be compatible.
Yes, part number 13099 is compatible with 1970–2000 Chevrolet & GMC Pickup (full size with 10" step bumper). Your 1995 C1500 is within this range, provided it has a full-size frame and a 10" step bumper.
No. Part number 13099 is designed only for 1963–1996 Ford Trucks (all full size, old body style only). It is not compatible with Ford trucks manufactured after 1996.
The manual specifies compatibility with 1970–2000 Chevrolet & GMC Pickup (full size with 10" step bumper). If your vehicle does not have a 10" step bumper, compatibility is not confirmed by the manual. Contact Curt Manufacturing or a fitment specialist to verify.
The kit includes: 6× 1/2–13 UNC carriage bolts, 1–3/4" long (part 10-10272); 6× 0.250 × 1.50 × 2.00" square hole spacers (CM-SP1); 6× 1/2–13 UNC serrated flange nuts (part 20-00062); 8× 7/16–14 UNC serrated flange nuts (part 20-00103); and 8× 7/16–14 UNC carriage bolts, 1–1/2" long (part 10-10282).
Yes. Step 1 of the installation instructions requires you to remove the spare tire from the vehicle before beginning installation. Note that the spare tire carrier may need to be relocated and/or modified to retain under-vehicle tire stowage after the hitch is installed. On some Ford Pickup models with a 16" spare tire, the spare tire cradle may also require adjustment.
Yes. Step 2 requires you to measure the vehicle frame width. The bracket orientation depends on frame width: for 34" frames, position the side bracket with mounting flanges pointing inboard; for 38" frames, position the bracket with mounting flanges pointing outboard.
Yes, drilling is required. Step 4 requires you to drill six 17/32" diameter holes in the vehicle frame using the slotted holes in the bracket as a guide. The manual recommends starting with a smaller bit and working up to 17/32". In some cases, it may be possible to use existing holes in the frame instead of drilling new ones.
Drill six 17/32" diameter holes in the vehicle frame. The manual recommends starting with a smaller bit and working up to 17/32" to ensure accuracy. Use the slotted holes in the bracket as a guide for hole placement.
Torque all 1/2" fasteners to 110 lb.-ft. and all 7/16" fasteners to 70 lb.-ft. These torque values are applied after the crosstube assembly is installed into the side brackets and all fasteners are hand-tightened.
No. Step 5 instructs you to install the side bracket mounting fasteners but explicitly states "Do not tighten at this time." The fasteners are tightened to final torque (110 lb.-ft. for 1/2" fasteners) only after the crosstube assembly is installed and all fasteners are in place (Step 7).
The crosstube assembly is attached using 7/16" × 1–1/2" carriage bolts and 7/16" serrated flange nuts (part 20-00103). Eight of each fastener are included in the kit. These fasteners are torqued to 70 lb.-ft. after installation.
The six 0.250 × 1.50 × 2.00" square hole spacers (part CM-SP1) are installed inside the vehicle frame when mounting the side brackets. They are placed between the frame and the bracket mounting fasteners to ensure proper spacing and load distribution.
Do not exceed your vehicle manufacturer's recommended towing capacity. The hitch has its own capacity ratings (weight-carrying and weight-distribution modes), but the manual emphasizes that the vehicle's limit takes precedence. Consult your vehicle's owner manual for the maximum towing capacity.
Periodically check the receiver hitch to ensure that all fasteners are tight and that all structural components are sound. The manual does not specify an exact interval, but regular inspection before towing is recommended to maintain safety and warranty coverage.
1963–1996 Ford Trucks (all full size, old body style only) and 1970–2000 Chevrolet & GMC Pickup (full size with 10" step bumper).
Yes. You must drill six 17/32" diameter holes in the vehicle frame. The manual recommends starting with a smaller bit and working up to 17/32". Existing frame holes may be reused if available.
Six 1/2–13 UNC carriage bolts, six square hole spacers, six 1/2–13 UNC flange nuts, eight 7/16–14 UNC flange nuts, and eight 7/16–14 UNC carriage bolts.
Torque all 1/2" fasteners to 110 lb.-ft. and all 7/16" fasteners to 70 lb.-ft.
Periodically check all fasteners to ensure they are tight and inspect all structural components for soundness.
Yes, the Curt 55316 is designed for Ford F-150 pickup trucks. It is also compatible with Ford F-250, F-350, F-250 heavy duty, and F-350 heavy duty models. Confirm your vehicle matches one of these applications before purchasing.
Yes, the Curt 55316 is compatible with Ford F-250, F-350, F-250 heavy duty, and F-350 heavy duty pickup trucks, as well as the F-150.
The Curt 55316 is a custom wiring harness that connects to your vehicle's taillight wiring. The harness end with the yellow wire inserts between the separated taillight connectors. The harness terminates in a 4-flat connector for trailer use.
Lowering the spare tire is not required but may ease installation. The manual notes that lowering the vehicle spare tire may make the installation easier, so consider this if you encounter tight access to the taillight connectors.
1. Locate the vehicle taillight wiring harness connectors and separate them from the taillight housing, taking care not to damage the locking tabs. 2. Insert the custom wiring harness end with the yellow wire between the separated connectors, ensuring they are fully inserted with locking tabs in place. 3. Route the 4-flat connector to the center of the vehicle and out of the trunk when in use; roll up and store in the trunk when not in use. Secure loose wires with the provided cable ties. 4. Reinstall all removed items and install the provided 4-flat dust cover.
When in use, route the 4-flat connector to the center of the vehicle and out of the trunk. When not in use, roll up and store in a convenient, out-of-the-way location inside the trunk.
The Curt 55316 includes the custom wiring harness with a yellow wire end, cable ties for securing loose wires, and a 4-flat dust cover to help prevent corrosion.
Do not exceed the product rating or your tow vehicle lamp load rating, whichever is lower. Exceeding the product rating can cause loss of warranty, overheating, and potential fire. Check your vehicle owner's manual or contact the vehicle manufacturer for your specific lamp load rating.
After installation, test for proper function by using a test light or by connecting a properly wired trailer. All steps must be followed to ensure the wiring harness functions properly.
The yellow wire is the end of the custom wiring harness that inserts between the separated taillight connectors during installation. It is part of the connector interface that links the harness to your vehicle's taillight wiring.
The provided 4-flat dust cover helps prevent corrosion of the 4-flat connector. Install it after completing the wiring harness installation.
Yes, you must take care not to damage the locking tabs when separating the taillight connectors. Handle the connectors carefully during Step 1 to avoid damaging these tabs, which are essential for securing the connections.
The Curt 55316 fits Ford F-150, F-250, F-350, F-250 heavy duty, and F-350 heavy duty pickup trucks.
Do not exceed the product rating or tow vehicle lamp load rating, whichever is lower. Exceeding the rating can cause loss of warranty, overheating, and potential fire.
The manual lists no tools as needed for installation.
Test for proper function using a test light or by connecting a properly wired trailer.
The harness includes cable ties for securing wires and a 4-flat dust cover to prevent corrosion.
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