Ram Build Sheet by VIN: Axle, Drivetrain and Towing Equipment
A Ram build sheet is the factory equipment listing for one truck or van, and it is where the details that decide how a Ram works are recorded: axle ratio, differential, four-wheel-drive hardware, engine, transmission and factory towing equipment. windowstickervin.com returns this build sheet for Ram VINs when a record is available, as a list of sales codes with short descriptions. It does not return the original window sticker or MSRP for Ram. Keep one distinction in mind: the build sheet records equipment, not ratings. It can show that a truck has a particular axle ratio and a factory hitch, but the tow and payload figures that follow from that configuration come from the manufacturer's published specifications and the labels on the truck itself. Run a Ram VIN to see what is on file.
Where each Ram spec comes from
Truck buyers usually need answers from three places. The basic VIN decode shown with your result covers identity; the build sheet covers installed equipment; the labels in the driver's door opening cover weight ratings.
| What you need | Basic VIN decode | Build sheet | Labels on the truck |
|---|---|---|---|
| Model, model year, cab and body type | Usually | Usually | — |
| Engine | Usually | Yes | — |
| 4x2 or 4x4 | Often | Yes, including the transfer case when listed | — |
| Axle ratio | No | Yes, when listed | — |
| Limited-slip or locking differential | No | Yes, when listed | — |
| Factory towing equipment | No | Yes, when installed at the plant | — |
| Gross vehicle weight rating (GVWR) and axle ratings | Often a weight class only | Sometimes | Exact figures on the certification label |
| Payload guidance | No | No | Tire and loading label: maximum combined weight of occupants and cargo |
Axle ratio and differential records
Ram has offered more than one axle ratio with many engine and drivetrain combinations, so two trucks with the same engine can be geared differently. A numerically higher ratio generally favors pulling power over highway fuel economy, which is why the ratio matters to anyone who tows. The build sheet line shows the ratio installed at the factory. It cannot show a later re-gear, so a lifted truck on much larger tires may no longer have its original gearing.
Differentials matter too. Depending on model and year, a Ram may have an open rear differential, a limited-slip unit or an electronic locker, and off-road models such as the Power Wagon are known for front and rear lockers. If traction equipment is part of why you're buying a particular truck, confirm it on the record rather than from a badge or the seller's memory.
Drivetrain and suspension equipment
- Engine and transmission. Ram trucks have used Pentastar V6, HEMI V8 and diesel engines, including the Cummins turbo diesel in Heavy Duty models and, in some years, an EcoDiesel V6 in the 1500. Newer 1500s added the Hurricane inline-six. The record names the engine and transmission a specific truck received.
- Four-wheel drive. Beyond 4x2 versus 4x4, Ram has offered different transfer-case types on some models. The record identifies which one was installed, where it is listed.
- Suspension. Air suspension, off-road suspension and heavy-duty packages vary by model and trim. On trims built around specific hardware, such as the Rebel, Power Wagon and TRX, the record is how you confirm the truck carries that hardware.
Towing equipment versus tow ratings
Factory towing items can include a receiver hitch, trailer wiring, an integrated trailer brake controller, towing mirrors, a fifth-wheel or gooseneck prep package on Heavy Duty trucks, and tow packages that bundle several of these. When they were installed at the plant, they appear on the build sheet. Hitches and brake controllers added by a dealer or owner do not.
A tow rating is a different thing. It depends on the whole configuration: engine, axle ratio, cab, bed length, 4x2 or 4x4, and weight ratings. The build sheet gives you those inputs. The rating for that configuration comes from the manufacturer's towing specifications for that model year, read alongside the weight ratings on the truck's own labels. Treat any tow figure in a listing as a claim to verify that way.
Vans, chassis cabs and older Dodge Ram trucks
- ProMaster vans. The build sheet covers factory equipment. Shelving, partitions, ladder racks and other commercial upfits installed after the van left the plant are generally not part of it.
- Chassis cabs. The record describes the cab and chassis as built. Bodies, beds and equipment added by an upfitter usually are not on it.
- Pre-split trucks. Trucks built before Ram was split off as its own brand, around 2010, carry Dodge branding, and the basic decode may list the make as Dodge. They are looked up the same way.
Not every Ram VIN returns a record, and how many lines appear differs from truck to truck. For reading the sales-code lines themselves, see the Jeep build sheet guide, which uses the same code system. Cross-shopping a GMC Sierra? GM trucks return a different kind of record, explained in the GMC build sheet guide.