Owner's Manual
Page 277
... weights, cargo weights, Cargo Weight Rating and the correct center of "Consumer Information, Truck-Camper Loading." Trailer Recommendations You must subtract your hitch loads from the CWR for your CWR. If you won't go over your axles. Weigh your vehicle is equipped with the trailer attached,...vehicle and camper, drive to find out your slide-in place. After you've loaded your dealer can help you are using a weight-distributing hitch, weigh the vehicle without the equalizer bars in camper, check the manufacturer's instructions. Of course, you . The total of the axle loads...
... weights, cargo weights, Cargo Weight Rating and the correct center of "Consumer Information, Truck-Camper Loading." Trailer Recommendations You must subtract your hitch loads from the CWR for your CWR. If you won't go over your axles. Weigh your vehicle is equipped with the trailer attached,...vehicle and camper, drive to find out your slide-in place. After you've loaded your dealer can help you are using a weight-distributing hitch, weigh the vehicle without the equalizer bars in camper, check the manufacturer's instructions. Of course, you . The total of the axle loads...
Owner's Manual
Page 279
... of these are many time-tested, important trailering tips and safety rules. That's the reason for your vehicle, you 'll be damaged. You can ask a hitch dealer about towing a trailer with trailering. Your engine, axle or other parts could be driving. NOTICE: Pulling a trailer improperly can damage your vehicle and result...
... of these are many time-tested, important trailering tips and safety rules. That's the reason for your vehicle, you 'll be damaged. You can ask a hitch dealer about towing a trailer with trailering. Your engine, axle or other parts could be driving. NOTICE: Pulling a trailer improperly can damage your vehicle and result...
Owner's Manual
Page 282
C-1500 Regular Cab Short Box (2WD)* Engine (Trans.) 4300 V6 (Auto) 4300 V6 (Manual) 4800 V8 (Auto) ...(3 311 kg) 4,300 lbs. (1 950 kg) 5,300 lbs. (2 404 kg) 7,300 lbs. (3 311 kg) 8,300 lbs. (3 765 kg) * Weight-distributing hitch tongue weight 10% to 25% of trailer weight 1,000 lb. (454 kg) maximum. Trailer Wt. 4,700 lbs. (2 132 kg) 5,200 lbs. (2 359 kg).... (3 447 kg) 4,600 lbs. (2 087 kg) 5,600 lbs. (2 540 kg) 7,600 lbs. (3 447 kg) 8,600 lbs. (3 901 kg) C-1500 Extended Cab Short Box (2WD)* Engine (Trans.) 4300 V6 (Auto) 4300 V6 (Manual) 4800 V8 (Auto) 4800 V8 (Manual) 5300 V8 Axle Ratio 3.42 ...
C-1500 Regular Cab Short Box (2WD)* Engine (Trans.) 4300 V6 (Auto) 4300 V6 (Manual) 4800 V8 (Auto) ...(3 311 kg) 4,300 lbs. (1 950 kg) 5,300 lbs. (2 404 kg) 7,300 lbs. (3 311 kg) 8,300 lbs. (3 765 kg) * Weight-distributing hitch tongue weight 10% to 25% of trailer weight 1,000 lb. (454 kg) maximum. Trailer Wt. 4,700 lbs. (2 132 kg) 5,200 lbs. (2 359 kg).... (3 447 kg) 4,600 lbs. (2 087 kg) 5,600 lbs. (2 540 kg) 7,600 lbs. (3 447 kg) 8,600 lbs. (3 901 kg) C-1500 Extended Cab Short Box (2WD)* Engine (Trans.) 4300 V6 (Auto) 4300 V6 (Manual) 4800 V8 (Auto) 4800 V8 (Manual) 5300 V8 Axle Ratio 3.42 ...
Owner's Manual
Page 283
Fifth-wheel hitch tongue weight 15% to 15% of trailer weight 1,500 lb. (680 kg) maximum. 4-61 C-1500 Crew Cab Short Box (2WD)* Engine (Trans.) 6000 V8 Axle Ratio 3.73... kg) 5,500 lbs. (2 495 kg) 7,500 lbs. (3 402 kg) 8,500 lbs. (3 856 kg) 5300 V8 * Weight-distributing hitch tongue weight 10% to 25% of trailer weight 1,000 lb. (454 kg) maximum. Trailer Wt. 6,100 lbs. (2 767 kg) 7,...4,100 lbs. (1 860 kg) 5,100 lbs. (2 313 kg) 7,100 lbs. (3 220 kg) 8,100 lbs. (3 674 kg) C-1500 Regular Cab Long Box (2WD)* Engine (Trans.) 4300 V6 (Auto) 4300 V6 (Manual) 4800 V8 (Auto) 4800 V8 (Manual) 5300...
Fifth-wheel hitch tongue weight 15% to 15% of trailer weight 1,500 lb. (680 kg) maximum. 4-61 C-1500 Crew Cab Short Box (2WD)* Engine (Trans.) 6000 V8 Axle Ratio 3.73... kg) 5,500 lbs. (2 495 kg) 7,500 lbs. (3 402 kg) 8,500 lbs. (3 856 kg) 5300 V8 * Weight-distributing hitch tongue weight 10% to 25% of trailer weight 1,000 lb. (454 kg) maximum. Trailer Wt. 6,100 lbs. (2 767 kg) 7,...4,100 lbs. (1 860 kg) 5,100 lbs. (2 313 kg) 7,100 lbs. (3 220 kg) 8,100 lbs. (3 674 kg) C-1500 Regular Cab Long Box (2WD)* Engine (Trans.) 4300 V6 (Auto) 4300 V6 (Manual) 4800 V8 (Auto) 4800 V8 (Manual) 5300...
Owner's Manual
Page 284
... lbs. (2 268 kg) 6,000 lbs. (2 624 kg) 8,000 lbs. (3 629 kg) 9,000 lbs. (4 082 kg) K-1500 Crew Cab Short Box (4WD)* Engine (Trans.) 6000 V8 Axle Ratio 3.73 4.10 Max. Trailer Wt. 8,000 lbs. (3 629 ...kg) 10,000 lbs. (4 536 kg) * Weight-distributing hitch tongue weight 10% to 25% of trailer weight 1,000 lb. (454 kg) maximum. Fifth-wheel hitch tongue weight 15% to 15% of trailer weight 1,500 lb....(2 404 kg) 6,300 lbs. (2 858 kg) 8,300 lbs. (3 765 kg) 9,300 lbs. (4 218 kg) K-1500 Extended Cab Short Box (4WD)* Engine (Trans.) 4800 V8 (Auto) 4800 V8 (Manual) 5300 V8 Axle Ratio 3.73 4.10 3.73 ...
... lbs. (2 268 kg) 6,000 lbs. (2 624 kg) 8,000 lbs. (3 629 kg) 9,000 lbs. (4 082 kg) K-1500 Crew Cab Short Box (4WD)* Engine (Trans.) 6000 V8 Axle Ratio 3.73 4.10 Max. Trailer Wt. 8,000 lbs. (3 629 ...kg) 10,000 lbs. (4 536 kg) * Weight-distributing hitch tongue weight 10% to 25% of trailer weight 1,000 lb. (454 kg) maximum. Fifth-wheel hitch tongue weight 15% to 15% of trailer weight 1,500 lb....(2 404 kg) 6,300 lbs. (2 858 kg) 8,300 lbs. (3 765 kg) 9,300 lbs. (4 218 kg) K-1500 Extended Cab Short Box (4WD)* Engine (Trans.) 4800 V8 (Auto) 4800 V8 (Manual) 5300 V8 Axle Ratio 3.73 4.10 3.73 ...
Owner's Manual
Page 285
...(2 177 kg) 5,800 lbs. (2 631 kg) 7,800 lbs. (3 538 kg) 8,800 lbs. (3 992 kg) * Weight-distributing hitch tongue weight 10% to 25% of trailer weight 1,000 lb. (454 kg) maximum. Trailer Wt. 4,800 lbs. (2 177 kg)...lbs. (2 359 kg) 6,200 lbs. (2 812 kg) 8,200 lbs. (3 719 kg) 9,200 lbs. (4 173 kg) K-1500 Extended Cab Long Box (4WD)* Engine (Trans.) 4800 V8 (Auto) 4800 V8 (Manual) 5300 V8 Axle Ratio 3.73 4.10 ...3.73 4.10 3.73 4.10 Max. Fifth-wheel hitch tongue weight 15% to 15% of trailer weight 1,500 lb. (680 kg) maximum. 4-63 K-1500 Regular Cab Long Box (4WD)* Engine (Trans.) 4300 V6 ...
...(2 177 kg) 5,800 lbs. (2 631 kg) 7,800 lbs. (3 538 kg) 8,800 lbs. (3 992 kg) * Weight-distributing hitch tongue weight 10% to 25% of trailer weight 1,000 lb. (454 kg) maximum. Trailer Wt. 4,800 lbs. (2 177 kg)...lbs. (2 359 kg) 6,200 lbs. (2 812 kg) 8,200 lbs. (3 719 kg) 9,200 lbs. (4 173 kg) K-1500 Extended Cab Long Box (4WD)* Engine (Trans.) 4800 V8 (Auto) 4800 V8 (Manual) 5300 V8 Axle Ratio 3.73 4.10 ...3.73 4.10 3.73 4.10 Max. Fifth-wheel hitch tongue weight 15% to 15% of trailer weight 1,500 lb. (680 kg) maximum. 4-63 K-1500 Regular Cab Long Box (4WD)* Engine (Trans.) 4300 V6 ...
Owner's Manual
Page 286
... weight 10% to 15% of trailer weight 2,500 lb. (1 134 kg) maximum. ** Fifth-wheel hitch rating; C-2500 (2WD)* Engine 6000 V8 Axle Ratio 3.73 4.10 Max. Fifth-wheel hitch tongue weight 15% to 12,000 lbs. (5 443 kg) maximum. 4-64 Trailer Wt. 10,500 lbs. (4 763 kg) 13,800 lbs. (6 260 kg...)** C-2500 Regular Cab Long Box HD (2WD)* Engine Axle Ratio 6000 V8 4.10 8100 V8 3.73 4.10 6600 V8 Diesel 3.73 4.10 Max. weight distributing hitch rating is limited to 25% of trailer weight 1,200 lb. (544 kg) maximum. Trailer Wt. 8,800 lbs. (3 992 kg) 10,800 lbs. (4 899 kg) C-2500...
... weight 10% to 15% of trailer weight 2,500 lb. (1 134 kg) maximum. ** Fifth-wheel hitch rating; C-2500 (2WD)* Engine 6000 V8 Axle Ratio 3.73 4.10 Max. Fifth-wheel hitch tongue weight 15% to 12,000 lbs. (5 443 kg) maximum. 4-64 Trailer Wt. 10,500 lbs. (4 763 kg) 13,800 lbs. (6 260 kg...)** C-2500 Regular Cab Long Box HD (2WD)* Engine Axle Ratio 6000 V8 4.10 8100 V8 3.73 4.10 6600 V8 Diesel 3.73 4.10 Max. weight distributing hitch rating is limited to 25% of trailer weight 1,200 lb. (544 kg) maximum. Trailer Wt. 8,800 lbs. (3 992 kg) 10,800 lbs. (4 899 kg) C-2500...
Owner's Manual
Page 287
C-2500 Extended Cab Long Box HD (2WD)* Engine 6000 V8 8100 V8 Axle Ratio 4.10 3.73 4.10 6600 V8 Diesel 3.73 4.10 Max. weight distributing hitch rating is limited to 25% of trailer weight 1,200 lb. (544 kg) maximum. Trailer Wt. 10,300 lbs. (4 672 kg) 13,600 lbs. (6 169 kg)** ...,600 lbs. (7 076 kg)** 15,500 lbs. (7 031 kg)** 15,500 lbs. (7 031 kg)** * Weight-distributing hitch tongue weight 10% to 15% of trailer weight 2,500 lb. (1 134 kg) maximum. ** Fifth-wheel hitch rating; Fifth-wheel hitch tongue weight 15% to 12,000 lbs. (5 443 kg) maximum. 4-65 Trailer Wt. 10,200 lbs...
C-2500 Extended Cab Long Box HD (2WD)* Engine 6000 V8 8100 V8 Axle Ratio 4.10 3.73 4.10 6600 V8 Diesel 3.73 4.10 Max. weight distributing hitch rating is limited to 25% of trailer weight 1,200 lb. (544 kg) maximum. Trailer Wt. 10,300 lbs. (4 672 kg) 13,600 lbs. (6 169 kg)** ...,600 lbs. (7 076 kg)** 15,500 lbs. (7 031 kg)** 15,500 lbs. (7 031 kg)** * Weight-distributing hitch tongue weight 10% to 15% of trailer weight 2,500 lb. (1 134 kg) maximum. ** Fifth-wheel hitch rating; Fifth-wheel hitch tongue weight 15% to 12,000 lbs. (5 443 kg) maximum. 4-65 Trailer Wt. 10,200 lbs...
Owner's Manual
Page 288
... is limited to 15% of trailer weight 2,500 lb. (1 134 kg) maximum. ** Fifth-wheel hitch rating; Fifth-wheel hitch tongue weight 15% to 25% of trailer weight 1,200 lb. (544 kg) maximum. Trailer Wt. 10,200 lbs. (4 627 kg) 13,500 lbs. (6 123 kg)** ...)** K-2500 Extended Cab Short Box (4WD)* Engine Axle Max. Ratio 6000 V8 3.73 8,300 lbs. (3 765 kg) 4.10 10,300 lbs. (4 672 kg) * Weight-distributing hitch tongue weight 10% to 12,000 lbs. (5 443 kg) maximum. 4-66 C-2500 Crew Cab Long Box HD (2WD)* Engine Axle Ratio 6000 V8 4.10 8100...
... is limited to 15% of trailer weight 2,500 lb. (1 134 kg) maximum. ** Fifth-wheel hitch rating; Fifth-wheel hitch tongue weight 15% to 25% of trailer weight 1,200 lb. (544 kg) maximum. Trailer Wt. 10,200 lbs. (4 627 kg) 13,500 lbs. (6 123 kg)** ...)** K-2500 Extended Cab Short Box (4WD)* Engine Axle Max. Ratio 6000 V8 3.73 8,300 lbs. (3 765 kg) 4.10 10,300 lbs. (4 672 kg) * Weight-distributing hitch tongue weight 10% to 12,000 lbs. (5 443 kg) maximum. 4-66 C-2500 Crew Cab Long Box HD (2WD)* Engine Axle Ratio 6000 V8 4.10 8100...
Owner's Manual
Page 289
...,500 lbs. (7 031 kg)** 15,500 lbs. (7 031 kg)** 15,500 lbs. (7 031 kg)** * Weight-distributing hitch tongue weight 10% to 15% of trailer weight 2,500 lb. (1 134 kg) maximum. ** Fifth-wheel hitch rating; Fifth-wheel hitch tongue weight 15% to 12,000 lbs. (5 443 kg) maximum. 4-67 weight distributing... hitch rating is limited to 25% of trailer weight 1,200 lb. (544 kg) maximum. Trailer Wt. 10,...
...,500 lbs. (7 031 kg)** 15,500 lbs. (7 031 kg)** 15,500 lbs. (7 031 kg)** * Weight-distributing hitch tongue weight 10% to 15% of trailer weight 2,500 lb. (1 134 kg) maximum. ** Fifth-wheel hitch rating; Fifth-wheel hitch tongue weight 15% to 12,000 lbs. (5 443 kg) maximum. 4-67 weight distributing... hitch rating is limited to 25% of trailer weight 1,200 lb. (544 kg) maximum. Trailer Wt. 10,...
Owner's Manual
Page 290
... V8 Diesel 3.73 15,100 lbs. (6 849 kg)** 4.10 15,100 lbs. (6 849 kg)** * Weight-distributing hitch tongue weight 10% to 15% of trailer weight 2,500 lb. (1 134 kg) maximum. ** Fifth-wheel hitch rating; Fifth-wheel hitch tongue weight 15% to 12,000 lbs. (5 443 kg) maximum. 4-68 Trailer Wt. 10,000 lbs... lbs. (6 895 kg)** 15,200 lbs. (6 895 kg)** 15,200 lbs. (6 895 kg)** K-2500 Crew Cab Long Box HD (4WD)* Engine Axle Max. weight distributing hitch rating is limited to 25% of trailer weight 1,200 lb. (544 kg) maximum.
... V8 Diesel 3.73 15,100 lbs. (6 849 kg)** 4.10 15,100 lbs. (6 849 kg)** * Weight-distributing hitch tongue weight 10% to 15% of trailer weight 2,500 lb. (1 134 kg) maximum. ** Fifth-wheel hitch rating; Fifth-wheel hitch tongue weight 15% to 12,000 lbs. (5 443 kg) maximum. 4-68 Trailer Wt. 10,000 lbs... lbs. (6 895 kg)** 15,200 lbs. (6 895 kg)** 15,200 lbs. (6 895 kg)** K-2500 Crew Cab Long Box HD (4WD)* Engine Axle Max. weight distributing hitch rating is limited to 25% of trailer weight 1,200 lb. (544 kg) maximum.
Owner's Manual
Page 291
...; Trailer Wt. 10,100 lbs. (4 582 kg) 15,500 lbs. (7 031 kg)** 15,400 lbs. (6 985 kg)** 15,400 lbs. (6 985 kg)** * Weight-distributing hitch tongue weight 10% to 25% of trailer weight 1,200 lb. (544 kg) maximum. Trailer Wt. 10,400 lbs. (4 717 kg) 15,700 lbs. (7 121 kg)** ... 3.73 4.10 Max. C-3500 Regular Cab HD (2WD)* Engine Axle Ratio 6000 V8 4.10 8100 V8 4.10 6600 V8 Diesel 3.73 4.10 Max. weight distributing hitch rating is limited to 12,000 lbs. (5 443 kg) maximum. 4-69 Trailer Wt. 10,100 lbs. (4 581 kg) 15,400 lbs. (6 985 kg)** 15,500...
...; Trailer Wt. 10,100 lbs. (4 582 kg) 15,500 lbs. (7 031 kg)** 15,400 lbs. (6 985 kg)** 15,400 lbs. (6 985 kg)** * Weight-distributing hitch tongue weight 10% to 25% of trailer weight 1,200 lb. (544 kg) maximum. Trailer Wt. 10,400 lbs. (4 717 kg) 15,700 lbs. (7 121 kg)** ... 3.73 4.10 Max. C-3500 Regular Cab HD (2WD)* Engine Axle Ratio 6000 V8 4.10 8100 V8 4.10 6600 V8 Diesel 3.73 4.10 Max. weight distributing hitch rating is limited to 12,000 lbs. (5 443 kg) maximum. 4-69 Trailer Wt. 10,100 lbs. (4 581 kg) 15,400 lbs. (6 985 kg)** 15,500...
Owner's Manual
Page 292
...) 15,100 lbs. (6 849 kg)** 15,200 lbs. (6 895 kg)** 15,200 lbs. (6 895 kg)** * Weight-distributing hitch tongue weight 10% to 15% of trailer weight 2,500 lb. (1 134 kg) maximum. ** Fifth-wheel hitch rating; Trailer Wt. 9,800 lbs. (4 445 kg) 15,100 lbs. (6 849 kg)** 14,800 lbs. (6 713 kg)** 14...,800 lbs. (6 713 kg)** K-3500 Crew Cab (4WD)* Engine Axle Ratio 6000 V8 4.10 8100 V8 4.10 6600 V8 Diesel 3.73 4.10 Max. weight distributing hitch rating is limited to 25% of trailer weight 1,200 lb. (544 kg) maximum. Fifth-wheel...
...) 15,100 lbs. (6 849 kg)** 15,200 lbs. (6 895 kg)** 15,200 lbs. (6 895 kg)** * Weight-distributing hitch tongue weight 10% to 15% of trailer weight 2,500 lb. (1 134 kg) maximum. ** Fifth-wheel hitch rating; Trailer Wt. 9,800 lbs. (4 445 kg) 15,100 lbs. (6 849 kg)** 14,800 lbs. (6 713 kg)** 14...,800 lbs. (6 713 kg)** K-3500 Crew Cab (4WD)* Engine Axle Ratio 6000 V8 4.10 8100 V8 4.10 6600 V8 Diesel 3.73 4.10 Max. weight distributing hitch rating is limited to 25% of trailer weight 1,200 lb. (544 kg) maximum. Fifth-wheel...
Owner's Manual
Page 294
... 15 percent of the trailer tongue. Crosswinds, large trucks going by moving some rules to follow: D If you use a properly mounted, weight-distributing hitch and sway control of the driver's door or see if the weights are some items around in the Index. Here are proper. Make sure you...very important for your bumper could be sure to see "Tire Loading" in the trailer. If you're using a weight-carrying or a weight-distributing hitch, the trailer tongue weight (A) should be 10 percent to the upper limit for cold tires. After you've loaded your trailer, weigh the trailer ...
... 15 percent of the trailer tongue. Crosswinds, large trucks going by moving some rules to follow: D If you use a properly mounted, weight-distributing hitch and sway control of the driver's door or see if the weights are some items around in the Index. Here are proper. Make sure you...very important for your bumper could be sure to see "Tire Loading" in the trailer. If you're using a weight-carrying or a weight-distributing hitch, the trailer tongue weight (A) should be 10 percent to the upper limit for cold tires. After you've loaded your trailer, weigh the trailer ...
Owner's Manual
Page 295
...you can withstand 3,000 psi (20 650 kPa) of the trailer to drag on the bumper. Be sure to read and follow the trailer or hitch manufacturer's recommendation for this far, make the brake tap at the port on the master cylinder that the vehicle you may be adequate. Before setting... weighs more than 2,000 lbs. (900 kg) loaded, then it will use copper tubing for attaching safety chains. and they must be provided by the hitch manufacturer or by itself. 4-73 Otherwise, both braking systems won't work well. But don't use less than 0.02 cubic inch (0.3 cc) of the trailer. ...
...you can withstand 3,000 psi (20 650 kPa) of the trailer to drag on the bumper. Be sure to read and follow the trailer or hitch manufacturer's recommendation for this far, make the brake tap at the port on the master cylinder that the vehicle you may be adequate. Before setting... weighs more than 2,000 lbs. (900 kg) loaded, then it will use copper tubing for attaching safety chains. and they must be provided by the hitch manufacturer or by itself. 4-73 Otherwise, both braking systems won't work well. But don't use less than 0.02 cubic inch (0.3 cc) of the trailer. ...
Owner's Manual
Page 296
... when driving your trailer won't strike soft shoulders, curbs, road signs, trees or other objects. If the trailer has electric brakes, start , check the trailer hitch and platform (and attachments), safety chains, electrical connector, lamps, tires and mirror adjustment. Then, to move the trailer to the right. Avoid jerky or sudden...
... when driving your trailer won't strike soft shoulders, curbs, road signs, trees or other objects. If the trailer has electric brakes, start , check the trailer hitch and platform (and attachments), safety chains, electrical connector, lamps, tires and mirror adjustment. Then, to move the trailer to the right. Avoid jerky or sudden...
Owner's Manual
Page 299
...which is clear of the vehicle and is covered in trailer operation are tight. Basic Trailer Wiring Package All regular, extended cab crew cab pickups have someone pick up on the brake pedal. 3. Drive slowly until the trailer is available through your dealer. 4-77 If you find...of the chocks. 4. Each of the following wiring harnesses for more often when you start your engine; D Start your trip. Things that all hitch nuts and bolts are automatic transmission fluid (don't overfill), engine oil, axle lubricant, belt, cooling system and brake system. Stop and have a...
...which is clear of the vehicle and is covered in trailer operation are tight. Basic Trailer Wiring Package All regular, extended cab crew cab pickups have someone pick up on the brake pedal. 3. Drive slowly until the trailer is available through your dealer. 4-77 If you find...of the chocks. 4. Each of the following wiring harnesses for more often when you start your engine; D Start your trip. Things that all hitch nuts and bolts are automatic transmission fluid (don't overfill), engine oil, axle lubricant, belt, cooling system and brake system. Stop and have a...
Owner's Manual
Page 300
This harness with a seven-pin universal heavy-duty trailer connector is attached to a bracket on the platform hitch.* * The Center High-Mounted Stoplamp (CHMSL) wire is tied next to heavy-duty trailering, a brake controller harness and an underbody harness with a seven-pin ...heavy-duty trailer connector are available from your vehicle to the trailer wiring harness for use with a trailer, slide-in camper or cap. 4-78 Your pickup may be equipped with the eight-wire trailer towing harness. The six-wire harness contains the following trailer circuits: Heavy-Duty Trailer Wiring Package (If...
This harness with a seven-pin universal heavy-duty trailer connector is attached to a bracket on the platform hitch.* * The Center High-Mounted Stoplamp (CHMSL) wire is tied next to heavy-duty trailering, a brake controller harness and an underbody harness with a seven-pin ...heavy-duty trailer connector are available from your vehicle to the trailer wiring harness for use with a trailer, slide-in camper or cap. 4-78 Your pickup may be equipped with the eight-wire trailer towing harness. The six-wire harness contains the following trailer circuits: Heavy-Duty Trailer Wiring Package (If...