Estimated class examples
70–150
Based on the sample shipments below
Transmission LTL Shipping Guide
Freight Class for Transmissions
Transmission freight class commonly ranges from Class 70 to Class 150 in the examples below.
Compact drained unit
Class 70
Crated transmission
Class 85
Bulky assembly with accessories
Class 150
These are density-based examples. Your final estimate depends on the finished packaged dimensions, total weight, stackability, fragility, value, and handling requirements for the transmission shipment.
Main class factor
Packaged density
Final dimensions and total weight
Assembly effect
Flat-packed ships denser
Assembled transmissions occupy more space
Carrier review
Stackability and damage risk
Custom, fragile, or glass-front transmissions
Transmission density calculator
Calculate Your Transmission Freight Class
Example crated transmission shipment loaded. Adjust the dimensions or weight to calculate your transmission freight class.
Your result
Cubic feet
40.00
Density
27.50
lb/cu ft
Estimated freight class
65
Example density-based estimate. Update any field to calculate your shipment.
Transmission shipment comparison
Transmission Freight Class by Shipment Type
Transmissions are dense, irregular assemblies that require strong skids, fluid control, and secure blocking. Freight class depends on crate cube, unit weight, whether fluids are fully drained, exposed shafts and pans, core condition, accessory packaging, and forklift access.
| Transmission shipment | Typical packaging | Density tendency | Stackability | Planning note |
|---|---|---|---|---|
| Automotive transmission | Drained and secured on a skid | High | Limited | Block the case and protect shafts and pan. |
| Rebuilt transmission | Crated with plugs and liner | High | Usually stackable if crate rated | Protect finished surfaces and warranty labels. |
| Transmission core | Leak-resistant crate or bin | High | Limited | Control residual fluid and loose parts. |
| Transmission with accessories | Large crate with converter and controls | Medium | Limited | Separate heavy accessories inside crate. |
transmission shipping options
Choosing a Shipping Method for Transmissions
The right service depends on transmission size, packaging, stackability, and handling needs.
| Transmission shipment | Common shipping option |
|---|---|
| Single drained transmission | Standard protected LTL |
| Crated rebuilt transmission | Standard LTL |
| Core returns with residual-fluid risk | Carrier-reviewed LTL |
| Large assemblies or multiple units | Volume or dedicated service |
Large, irregular, non-stackable, unusually valuable, or specially handled transmission shipments may need carrier review before booking.
Transmission shipment examples
Transmission Freight Class Examples
These examples use packaged outside dimensions and the site’s density-to-class chart. They are examples only, not fixed classes for all transmission shipments.
Compact drained unit
Dense transmission blocked on a compact skid
40 × 36 × 30 in
Packaged weight: 900 lb
- Cubic feet
- 25.00
- Density
- 36.00 lb/cu ft
Estimated class
Density-based
55
Crated transmission
Automotive transmission in a reinforced crate
48 × 40 × 36 in
Packaged weight: 1100 lb
- Cubic feet
- 40.00
- Density
- 27.50 lb/cu ft
Estimated class
Density-based
65
Bulky assembly with accessories
Transmission, converter, and accessories in a larger crate
60 × 48 × 48 in
Packaged weight: 1400 lb
- Cubic feet
- 80.00
- Density
- 17.50 lb/cu ft
Estimated class
Density-based
70
Transmission Packaging
- Drain fluids as required, install plugs or caps, use a leak-resistant liner, and mount the transmission to a strong skid or crate base.
- Block the housing against movement, support the bellhousing and tailshaft, and protect pans, shafts, connectors, sensors, and mounting ears.
- Package torque converters, control modules, coolers, loose hardware, and return cores in separated, labeled compartments.
Transmission Stackability
- A fully enclosed transmission crate may stack only when the crate frame carries the top load rather than the transmission housing.
- Open skids and core bins generally require limited-stack handling because of exposed components and leak-containment systems.
- Treat transmissions with protruding shafts, unsupported bellhousings, mixed accessories, or uncertain fluid condition as non-stackable.
Transmission Leakage, Housing, Shaft, and Core-Return Protection
- Prevent fluid leakage, cracked housings, bent shafts, damaged pans, broken connectors, shifted torque converters, and crate breakout.
- Protect machined sealing surfaces, sensors, solenoids, warranty tags, serial numbers, and core-return documentation.
- Document transmission type, drained status, unit count, serial or part number, core status, declared value, and center of gravity.
Measure the fully packaged transmission shipment
- Measure after all skids, crates, liners, blocks, plugs, accessory compartments, and wraps are installed.
- Include protruding shafts, bellhousing width, crate feet, lifting points, and pallet overhang.
- Use the total packaged weight of the transmission, fluids remaining, crate or skid, accessories, and securement.
Before Requesting a Transmission Freight Quote
- Measure the finished drained-unit skid, rebuilt-transmission crate, core-return bin, or transmission-and-accessories shipment.
- Record the total packaged weight, transmission type, unit count, drained status, part or serial number, core status, and declared value.
- State whether the crate is structurally top-load rated or requires limited-stack handling because of open skids, exposed shafts, leak liners, or accessories.
- Include photos of drain plugs, leak liner, bellhousing and tailshaft supports, pan protection, serial labels, blocking, and skid securement.
- Confirm fluid-drain requirements, forklift capacity, liftgate, appointment, limited-stack, return-core, and high-value handling requirements.
Calculate your actual shipment
Calculate Transmission Freight Class
The calculator returns cubic feet, pounds per cubic foot, and a density-based freight class estimate for your transmission shipment.
Freight classes shown on this page are density-based estimates for shipment planning. Actual classification may also depend on value, handling requirements, liability, stowability, dimensions, and other commodity-specific factors. Confirm the final freight class with your carrier, broker, or official NMFC resources before shipping.
NMFC® is a registered trademark of the National Motor Freight Traffic Association, Inc. FreightClassCalculator.tools is an independent calculator and is not affiliated with, endorsed by, or licensed by NMFTA.