I HAVE HAD TROUBLE FINDING INFORMATION ON ANY UPGRADES, OR MODIFICATION THAT HAVE BEEN DONE TO THE NP231D TRANSFER CASE SINCE DATE OF MANUFACTURE ON 10-89. I HAD TO REPLACE THE RANGE FORK AND RANGE FORK SHIFT HUB AND AM NOW EXPERIENCING DIFFICULTIES WITH THE REPLACEMENTS. IF I CAN JUST GET SOME FEEDBACK ON THIS IT WOULD HELP ME A GREAT DEAL. THANK YOU FOR YOUR TIME AND EFFORT IN THIS SITUATION. *AKY
NHTSA complaint #708783 — an unverified report by a vehicle owner.
Austin, TX
POWER TRAIN:MANUAL TRANSMISSION
THIS VEHICLE HAS HAD PROBLEMS WITH THE TRANSMISSION AND DRIVETRAIN SINCE IT CAME OFF THE LOT. THE ORIGINAL DEALERSHIP WAS EXTREMELY HELPFUL WHILE WE STILL LIVED IN THE AREA. HOWEVER, WHEN WE MOVED TO MINNESOTA THE FIRST TRANSMISSION FAILURE OCCURRED. 1ST 2ND AND 3RD GEARS WERE REPLACED, THERE WAS LESS THAN 7,000 MI ON THE TRUCK. THE SECOND FAILURE WAS LESS THAN A YEAR LATER, AGAIN 1ST 2ND AND 3RD CRAPPED OUT. THIS OCCURRED AGAIN ABOUT 6-8 MONTHS LATER. I HAD ASKED THE SERVICE SHOP TO CHECK THE DRIVETRAIN SEVERAL TIMES, THE RESPONSE WAS THAT EVERYTHING WAS WITHIN PARAMETERS. THE WHOLE SYSTEM JUMPS AND THUMPS WHEN SHIFTING GEARS. IT ALSO MAKES SIMILAR NOISES AND JUMPING WHEN GOING OVER SMALL BUMPS OR DIPS IN THE ROAD. I HAVE HAD THE CLUTCH, PRESSURE PLATE AND THROW OUT BEARING REPLACED AT ABOUT 40,000 MI. THIS TRUCK HAS NOT BEEN USED FOR TOWING OR HAULING ANY HEAVY LOADS. I READ IN THE ABOVE LIST ABOUT ANOTHER.
NHTSA complaint #705435 — an unverified report by a vehicle owner.
Wellsville, MO
POWER TRAIN:AUTOMATIC TRANSMISSION:PARK/NEUTRAL START INTERLOCK SWITCH
VEHICLE JUMPED OUT OF GEAR RESULTING IN VEHICLE COLLISION.
NHTSA complaint #506465 — an unverified report by a vehicle owner.
Dale City, VA
POWER TRAIN:AUTOMATIC TRANSMISSION:PARK/NEUTRAL START INTERLOCK SWITCH
VEHICLE JUMPED OUT OF PARK RESULTING IN COLLISION.
NHTSA complaint #526093 — an unverified report by a vehicle owner.
Superior, WICrash
POWER TRAIN:AUTOMATIC TRANSMISSION:PARK/NEUTRAL START INTERLOCK SWITCH
THE TRUCK WAS IDLING IN PARK. THE TRUCK SLIPPED OUT OF PARK INTO REVERSE AND SLAMMED INTO THE HOUSE.
NHTSA complaint #502674 — an unverified report by a vehicle owner.
Pekin, IL
POWER TRAIN:AUTOMATIC TRANSMISSION
CONSUMER COMPLAINTING OF TRANSMISSION OVERDRIVE SYSTEM MALFUNCTION WITH ONLY 67,000 MILES OF WEAR, DEALER NOTIFIED AND WILL REPAIR FOR A COST TO THE COSUMER.
NHTSA complaint #824268 — an unverified report by a vehicle owner.
ST. Louis, MO
POWER TRAIN:AUTOMATIC TRANSMISSION
TRANSMISSION FAILED.
NHTSA complaint #519485 — an unverified report by a vehicle owner.
Wellsville, MO
POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION (PRNDL)
TRANSMISSION SLIPPED, CAUSING ACCIDENT.
NHTSA complaint #506465 — an unverified report by a vehicle owner.
Louisville, KY
POWER TRAIN:MANUAL TRANSMISSION
TRANSMISSION FAILED THREE TIMES.
NHTSA complaint #517461 — an unverified report by a vehicle owner.
Chambers H, PA
POWER TRAIN:AUTOMATIC TRANSMISSION
TRANSMISSION FAILED WITH VIRTUALLY NO WARNING. TRANSMISSION HAD BEEN VISUALLY INSPECTED AND SERVICED AS PART OF A SERVICE CALL; NO SIGNS OF FAILURE WERE DETECTED.
NHTSA complaint #546873 — an unverified report by a vehicle owner.
Wintersvil, OH
POWER TRAIN:AUTOMATIC TRANSMISSION
TRANSMISSION FAILED.
NHTSA complaint #505018 — an unverified report by a vehicle owner.
Ocala, FL
POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER
TORQUE CONVERTER REPLACED.
NHTSA complaint #504150 — an unverified report by a vehicle owner.
Ocala, FL
POWER TRAIN:AUTOMATIC TRANSMISSION
TRANSMISSION FAILED.
NHTSA complaint #504150 — an unverified report by a vehicle owner.
Union City, OH
POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT
REAR END VIBRATION DUE TO FAULTY DIFFERENTIAL. *DSH
NHTSA complaint #488061 — an unverified report by a vehicle owner.
Union City, OH
POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT
AXLE SHAFT BEARINGS FAULTY, CAUSING VIBRATIONS.
NHTSA complaint #488061 — an unverified report by a vehicle owner.
Union City, OH
POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT
DIFFERENTIALS PINION AND RINGS FAULTY, CAUSING VIBRATIONS.
NHTSA complaint #488061 — an unverified report by a vehicle owner.
Adkins, TX
POWER TRAIN
TACHOMETER FAILED.
NHTSA complaint #500619 — an unverified report by a vehicle owner.
Adkins, TX
POWER TRAIN:AUTOMATIC TRANSMISSION
AUTOMATIC TRANSMISSION DOWNSHIFTS WHEN EXCEEDING 55 MPH. *DSH
NHTSA complaint #500619 — an unverified report by a vehicle owner.
Pompano Beac, FL
POWER TRAIN:AXLE ASSEMBLY
THE REAR END AXLE WAS CRACKED . TT
NHTSA complaint #979096 — an unverified report by a vehicle owner.