TOWING 4WD VEHICLES T/CASE RECOMMENDATIONS. GMC Truck GMC K Pickup

VEHICLES AFFECTED: All 1971 Through 1984 Light Duty 'T' and 'K' Models

This information is being published in response to requests for guidelines for towing 4-wheel drive vehicles. The chart gives recommendations for each type of transfer case.

TIPS FOR TOWING 4-WHEEL DRIVE VEHICLES

203 205 207 208 FULL TIME PART TIME PART TIME PART TIME

FRONT 1. TRANSFER CASE 1. TRANSFER CASE 1. TRANSFER 1.TRANSFER WHEELS IN NEUTRAL IN 2H. CASE IN CASE IN OFF 2. AUTOMATIC 2. TRANSMISSION NEUTRAL. 2H. THE TRANSMISSION IN NEUTRAL 2. AUTOMATIC 2.TRANSMISSION GROUND IN PARK OR 3. MAXIMUM SPEED TRANSMISSION IN NEUTRAL. MANUAL 58KM/H(35MPH) IN PARK, OR 3.MAXIMUM TRANSMISSION 4. MAXIMUM DISTANCE MANUAL SPEED 80KM/H IN FIRST GEAR. 80 KM(50 MILES) TRANSMISSION (35MPH) 3. MAXIMUM SPEED NOTE: FOR DISTANCES IN FIRST GEAR.4.MAXIMUM 58KM/H (35MPH) OVER 80KM (50 MILES) NOTE:DO NOT DISTANCE 80 4. MAXIMUM DISTANCE DISCONNECT THE REAR EXCEED SPEEDS AS KM(50MILES) 80 KM (50 MILES) AXLE CARRIER AND PER PROVINCIAL NOTE:FOR NOTE: FOR DISTANCES SECURE IN SAFE LAWS FOR TOWING DISTANCES OVER 80KM(50 MILES) POSITION. TAPE VEHICLES. OVER 80KM DISCONNECT REAR U-JOINT BEARING (50MILES) AXLE CARRIER AND JOURNAL CAPS DISCONNECT SECURE IN SAFE SECURELY IN PLACE. THE REAR POSITION. TAPE PROPSHAFT U-JOINT BEARING AT REAR JOURNAL CAPS AXLE CARRIER SECURELY IN PLACE. SECURE IN SAFE POSITION. TAPE U-JOINT BEARING JOURNAL CAPS SECURELY IN PLACE.

REAR 1.TRANSFER CASE 1.TRANSFER CASE 1.TRANSFER CASE1.TRANSFER WHEELS IN NEUTRAL IN 2H. IN NEUTRAL. CASE IN OFF 2.AUTOMATIC 2.AUTOMATIC 2.AUTOMATIC 2H. THE TRANSMISSION TRANSMISSION TRANSMISSION 2.AUTOMATIC GROUND IN PARK, OR IN PARK, OR IN PARK, OR TRANSMISSION MANUAL MANUAL MANUAL IN PARK, OR TRANSMISSION TRANSMISSION TRANSMISSION MANUAL IN FIRST GEAR IN FIRST GEAR IN FIRST GEAR TRANSMISSION 3.MAXIMUM NOTE:DO NOT IN FIRST SPEED 58KM/H EXCEED SPEEDS GEAR. (35MPH) AS PER 3.MAXIMUM 4.MAXIMUM PROVINCIAL LAWS SPEED DISTANCE 50 FOR TOWING 58KM/H MILES. VEHICLES. (35MPH). NOTE:FOR 4.MAXIMUM DISTANCES OVER DISTANCE 80KM (50MILES) 80KM DISCONNECT (50MILES) FRONT NOTE: FOR PROPSHAFT AT SPEEDS OR FRONT AXLE DISTANCES CARRIER AND GREATER THAN SECURE IN ABOVE, SAFE DETERMINE THAT POSITION. THE FRONT TAPE U-JOINT PROPSHAFT IS BEARING NOT ROTATING JOURNAL WHEN VEHICLE CAPS SECURELY IS MOVING IN PLACE. (HUBS ARE UNLOCKED) OR DIS- CONNECT THE FRONT PROP-- SHAFT AT THE FRONT AXLE CARRIER AND SECURE IN A SAFE POSITION. TAPE U-JOINT BEARING JOURNAL CAPS SECURELY IN PLACE. ALL 1.TRANSFER CASE 1.TRANSFER 1.TRANSFER 1.TRANSFER FOUR IN NEUTRAL CASE IN CASE IN CASE IN 2H. WHEELS 2.AUTOMATIC 2H. NEUTRAL. 2.TRANSMISSION ON TRANSMISSION 2.TRANSMISSION 2.AUTOMATIC IN NEUTRAL. GROUND IN PARK, IN NEUTRAL. TRANSMISSION 3.MAXIMUM MANUAL 3.MAXIMUM IN PARK, OR SPEED 58KM TRANSMISSION SPEED 58KM MANUAL TRANS- (35MPH). IN FIRST GEAR. (35MPH) MISSION IN 4.MAXIMUM NOTE: DO NOT 4.MAXIMUM FIRST GEAR. DISTANCE EXCEED SPEED DISTANCE 80KM NOTE:DO NOT 80 KM AS PER (50MILES). EXCEED SPEEDS (50 MILES) PROVINCIAL LAWS FOR SPEEDS AND AS PER PRO- FOR SPEEDS AND FOR TOWING DISTANCES VINCIAL LAWS DISTANCES VEHICLES. GREATER THAN FOR TOWING GREATER THAN ABOVE: VEHICLES. ABOVE: 1.TRANSFER CASE 1.TRANSFER IN 2H. CASE IN 2H. 2.AUTOMATIC 2.AUTOMATIC TRANSMISSION TRANSMISSION IN PARK, OR IN PARK, OR MANUAL MANUAL TRANSMISSION TRANSMISSION IN FIRST GEAR. IN FIRST 3.REAR PROPSHAFT GEAR. MUST BE DIS- 3.REAR PROP- CONNECTED AT SHAFT MUST THE AXLE BE DIS- CARRIER AND CONNECTED SECURED IN A AT THE AXLE SAFE POSITION. CARRIER AND TAPE U-JOINT SECURED IN BEARING JOURNAL A SAFE CAPS SECURELY IN POSITION. PLACE. TAPE U- NOTE: DO NOT EXCEED JOINT BEAR- SPEED AS PER PROV- ING JOURNAL INCIAL LAWS FOR CAPS SEC- VEHICLES. URELY IN PLACE. NOTE: DO NOT EXCEED SPEEDS AS PER PRO- VINCIAL LAWS FOR TOWING VEHICLES.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.