1999 Peterbilt 379 Transmission and drivetrain Problems
- Complaints
- 1about this part
- Share
- 20%of 5 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the transmission and drivetrain of the 1999 Peterbilt 379, 20% of the 5 complaints for this model year.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The crankshaft broke when slowing for a scale house, leaving the truck disabled. The truck was towed to a shop. The cluch and transmission input shaft had to be replaced.”
NHTSA complaint #10074269, filed 2004-05Related service bulletins
- 10176033May 29, 2020Information only: Hendrickson Softek front axle maintenance intervals and requirements.
Transmission and drivetrain: other model years
Other parts of the 1999 Peterbilt 379
← All problems reported for the 1999 Peterbilt 379
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology