DESCRIPTION
The SAE bolt strength grades range from grade 2 to grade 8. The higher the grade number, the greater the bolt strength. Identification is determined by the line marks on the top of each bolt head. The actual bolt strength grade corresponds to the number of line marks plus 2. The most commonly used metric bolt strength classes are 9.8 and 10.9. The metric strength class identification number is imprinted on the head of the bolt. The higher the class number, the greater the bolt strength. Some metric nuts are imprinted with a single-digit strength class on the nut face. (Scheme 1), BOLT MARKINGS AND TORQUES - METRIC table and BOLT MARKINGS AND TORQUES - U. S. CUSTOMARY table.
Scheme 1
| Bolt Markings | 8.8/8.9 | 10.9 | 12.9 | |||
|---|---|---|---|---|---|---|
| Bolt Dia. | N.m | Ft. Lbs. | N.m | Ft. Lbs. | N.m | Ft. Lbs. |
| 6 | 12 | 105* | 14 | 120* | 16 | 12 |
| 8 | 25 | 250* | 32 | 23 | 38 | 28 |
| 10 | 54 | 40 | 60 | 45 | 74 | 55 |
| 12 | 95 | 70 | 108 | 80 | 135 | 100 |
| 14 | 155 | 115 | 175 | 130 | 216 | 160 |
| 16 | 243 | 180 | 324 | 210 | 324 | 240 |
| * Inch Lbs. | ||||||
BOLT MARKINGS AND TORQUES - METRIC
| Bolt Markings | Grade 5 | Grade 8 | ||
|---|---|---|---|---|
| Bolt Dia. | N.m | Ft. Lbs | N.m | Ft. Lbs |
| 1/4 - 20 | 10 | 95* | 14 | 125* |
| 1/4 - 28 | 10 | 95* | 17 | 150* |
| 5/16 - 18 | 22 | 200* | 30 | 270* |
| 5/16 - 24 | 26 | 240* | 33 | 300* |
| 3/8 - 16 | 40 | 30 | 55 | 40 |
| 3/8 - 24 | 47 | 35 | 60 | 45 |
| 7/16 - 14 | 68 | 50 | 88 | 65 |
| 7/16 - 20 | 74 | 55 | 95 | 70 |
| 1/2 - 13 | 101 | 75 | 135 | 100 |
| 1/2 -20 | 115 | 85 | 150 | 110 |
| 9/16 - 12 | 135 | 105 | 182 | 135 |
| 9/16 - 18 | 155 | 115 | 202 | 150 |
| 5/8 - 11 | 202 | 150 | 263 | 195 |
| 5/8 - 18 | 215 | 160 | 284 | 210 |
| 3/4 - 10 | 230 | 170 | 297 | 220 |
| 3/4 - 16 | 236 | 175 | 304 | 225 |
| 7/8 - 14 | 405 | 300 | 540 | 400 |
| * Inch Lbs. | ||||
BOLT MARKINGS AND TORQUES - U. S. CUSTOMARY
| WARNING | Use of an incorrect fastener may result in component damage or personal injury. |
Fasteners and torque specifications references in this Service Information are identified in metric and SAE format.
During any maintenance or repair procedures, it is important to salvage all fasteners (nuts, bolts, etc.) for reassembly. If the fastener is not salvageable, a fastener of equivalent specification must be used.
Most stripped threaded holes can be repaired using a Helicoil®. Follow the vehicle or Helicoil® recommendations for application and repair procedures.
Individual Torque Charts appear within many of the service information categories. Refer to the Standard Torque Specifications Chart (Scheme 2) for torque references not listed in the individual torque charts.
Scheme 2
Scheme 3
The Vehicle Identification Number (VIN) plate is attached to the top left side of the instrument panel. The VIN contains 17 characters that provide data concerning the vehicle. Refer to the VIN DECODING INFORMATION to determine the identification of a vehicle.
To protect the consumer from theft and possible fraud, the manufacturer is required to include a check digit at the ninth position of the VIN. The check digit is used by the manufacturer and government agencies to verify the authenticity of the vehicle and official documentation. The formula to use the check digit is not released to the general public.
| POSITION | INTERPRETATION | CODE = DESCRIPTION |
|---|---|---|
| 1 | Country of origin | 1 = Manufactured by Chrysler LLC |
| 2 | Make | D = Dodge |
| 3 | Vehicle Type | 3 = Truck with side airbags, sales code (CGS) |
| 7 = Truck without side airbags, sales code (CGS) | ||
| 4 | Gross Vehicle Weight Rating (GVWR) | H = 6001-7000 lbs. (2722 - 3175 KG) |
| 5 | Vehicle line | E = Dakota 4x2 |
| W = Dakota 4x4 | ||
| 6 | Series | 2 = L (low line) |
| 3 = M (medium) | ||
| 5 = P (premium) | ||
| 7 = X (special) | ||
| 7 | Body style | 2 = Extended cab |
| 8 = Crew cab | ||
| 8 | Engine | K = 3.7L V6 cyl. Magnum gasoline, sales code (EKG) |
| P = 4.7L V8 cyl. Magnum gasoline, sales Code (EVE) | ||
| 9 | Check digit | 0 through 9 or X |
| 10 | Model year | 9 = 2009 |
| 11 | Assembly plant | S = warren truck assembly |
| 12 - 17 | Vehicle build sequence six digit number assigned by assembly plant | |
VIN DECODING INFORMATION
Scheme 4
A vehicle certification label is attached to every Chrysler Corporation vehicle. The label certifies that the vehicle conforms to all applicable Federal Motor Vehicle Standards. The label also lists
- Month and year of vehicle manufacture.
- Gross Vehicle Weight Rating (GVWR). The gross front and rear axle weight ratings (GAWR's) are based on a minimum rim size and maximum cold tire inflation pressure.
- Vehicle Identification Number (VIN).
- Type of vehicle.
- Type of rear wheels.
- Bar code.
- Month, Day and Hour (MDH) of final assembly.
- Paint and Trim codes.
- Country of origin.
The label is located on the driver-side door shut-face.