Find Replacement Peterbilt 379 Drive Shaft Parts
Achieve driveline stability and vibration reduction with premium drivetrain replacement parts. Precision-fit universal joint kits and driveline hardware like PTO setups and bearing strap kits is what helps transfer power from the transmission to the drive axles. You can find a wide range of full round joints and half round joints with straps or U-bolts to secure the bearing caps. Replacing these simultaneously with a strap kit can help ensure proper torque retention. Be sure to secure your drive train pinions, input shafts, and tail shafts with precision-threaded locking hardware like drive train fasteners and nuts available in various metric sizes. You can also find driveline accessories like joint strap kits and spring tab kits. The differential is expensive to rebuild. Thatâs why drivetrain fasteners, seals, and nuts are the best defense for preserving your gears. We also stock lift axle controls and sensors to monitor multi-axle configurations on your Pete 379.Cost-Effective Wheel-End Maintenance for Peterbilt 379
Strengthen the structural foundation between your drivetrain and chassis with Peterbilt 379 spring eye brackets to ensure rear axle alignment with the frame, and camshaft repair kits.Why Choose Our Aftermarket Drivetrain Parts?
- Competitive Pricing: Our parts are competitively priced often more affordable than OEM, without sacrificing quality. - Heavy-Duty Construction: Built for commercial use, every product in our catalog is made to stand up to the job. - Fast Availability: Many items are in stock, rebuilt, non-wrecked, or pulled from quality cores and ready for immediate sale. - Extended Value: Keep your Peterbilt 379 on the road longer, boost resale value, and protect your bottom line. - Wide Compatibility: These semi truck transmission parts fit the 379 and other makes like Mack, International, Volvo, and more.Frequently Asked Questions About Peterbilt 379 Drivetrain Parts
What years of Peterbilt 379 are compatible with your drivetrain parts?
Our drivetrain parts are designed to fit Peterbilt 379 models from 1987 through 2007. However, compatibility can vary depending on your specific engine and transmission configuration. For example, parts for Cat 3406E engines differ from those for Cummins N14 or ISX setups. We recommend checking your OEM or calling our tech support at (417) 624-1010 with your truck's specifications to ensure proper fitment.
How difficult is it to replace U-joints and carrier bearings on a 379?
Replacing U-joints typically requires 2-4 hours for an experienced mechanic and basic hand tools including a U-joint press or large vise. Carrier bearing replacement is more involved, requiring the driveshaft to be removed and often needing a hydraulic press. Many customers report that having the correct measurements beforehand saves significant time. Alignment must be checked after installation to prevent vibration issues.
What's the difference between standard and heavy-duty driveshaft components?
Standard components are rated for typical highway applications up to 80,000 lbs GVW, while heavy-duty options are engineered for vocational use, heavy hauling, or trucks exceeding 80,000 lbs. Heavy-duty U-joints feature thicker cross sections and upgraded needle bearings, while HD carrier bearings use sealed designs with higher load ratings. If you're running oversize loads or in severe service conditions, the heavy-duty upgrade typically doubles component life.
Do you carry parts for both manual and automatic transmission setups?
Yes, we stock drivetrain components for all factory transmission options including Eaton Fuller 13 and 18-speeds, as well as Allison automatic applications. The main differences are in yoke styles and driveshaft lengths. Manual transmission trucks typically use different slip yoke designs than automatics. When ordering, you'll need to know your transmission model number, which is stamped on the transmission tag.
What causes driveline vibration and which parts should I check first?
Driveline vibration in 379s commonly stems from worn U-joints, failing carrier bearings, or improper driveshaft angle. Start by checking U-joint play - any movement indicates replacement is needed. Carrier bearings often show wear through rubber deterioration or bearing noise. We recommend replacing U-joints in pairs and checking driveshaft balance if vibration persists after component replacement. Proper torque specs and alignment angles are critical for vibration-free operation.
