Part category
Transmission & Drivetrain Parts
Transmissions, transfer cases, axles, and driveshafts are matched by drivetrain, gear count, and code — we help you get every detail right.
- Cars, SUVs & trucks
- OEM & aftermarket options
- Ships to all 50 states
Drivetrain parts depend on more than your year, make, and model. The same vehicle may be offered with an automatic, a manual, or a CVT, with two-wheel drive or four-wheel drive, and with several axle ratios. A part that looks identical can still be the wrong one if any of those details differ.
Rock Sales Parts helps customers across the United States source transmissions, transmission components, transfer cases, axles, driveshafts, and differential parts for cars and trucks. Tell us your vehicle and drivetrain details — or simply read us your VIN — and we will help find a part that matches.
Transmission & Drivetrain Parts we can help you source
- Automatic and manual transmissions
- Transmission control modules and solenoids
- Torque converters
- Transfer cases and transfer case motors
- Driveshafts and U-joints
- CV axles and axle shafts
- Differentials and differential components
- Clutch kits, flywheels, and hydraulics
- Shifter assemblies and cables
- Transmission mounts
This list is not exhaustive. If the part you need is not listed, call us — we will tell you whether we can help.
Before you order
Why drivetrain matters
A 2WD and a 4WD version of the same truck can use different transmissions, axles, and driveshafts. Telling us your drivetrain up front is one of the easiest ways to avoid a mismatch.
Gear ratios for differentials
Differential and ring-and-pinion parts must match your axle ratio. Depending on the manufacturer, the ratio may be shown on a vehicle label, on a tag attached to the axle, or in build information tied to your VIN.
Need Transmission & Drivetrain Parts? Call us.
Read us your VIN or your year, make, and model, and tell us what you need. We will help identify the right part and let you know what we can find.
FAQ
Transmission & Drivetrain Parts: common questions
Can you help me find a replacement transmission?
Yes. We can help source replacement transmissions for many cars and trucks, subject to availability. Have your VIN, transmission type, and drivetrain ready when you call so we can match the correct unit.
Do I need to know whether my vehicle is AWD or 4WD?
It helps a lot. AWD and 4WD systems use different components, and both differ from 2WD versions. If you are unsure, your VIN usually lets us confirm it.
Which side is the driver side?
For vehicles sold in the United States, the driver side is the left side of the vehicle when you are sitting in the driver seat. The passenger side is the right side.
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