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Choose your Engine for your 2003 GMC Sierra 2500 HD
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- Greasable
- RWD, 157.5" Wheelbase, Excludes Allison Trans; 4WD, 133" Wheelbase, Excludes Allison Trans
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 2003 - GMC Sierra 2500 HD | V | 6599 | 8 Cyl 6.6L | 403 |
- Greasable
- RWD, 133" Wheelbase, Allison Trans; RWD, 133" Wheelbase, Excludes Allison Trans, 2" Body Raise; RWD, 143.5" Wheelbase; RWD, 157.5" Wheelbase, Allison Trans; 4WD, 133" Wheelbase, Allison Trans; 4WD, 167" Wheelbase, Excludes Allison Trans; 4WD, 167" Wheelbase, Allison Trans; 4WD, 143.5" Wheelbase, 4-Speed Trans, 2" Body Raise; 4WD, 143.5" Wheelbase, Allison Trans
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 2003 - GMC Sierra 2500 HD | V | 6599 | 8 Cyl 6.6L | 403 |
- Greasable
- 4WD - 133" Wheelbase - Excludes Allison Transmission
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 2003 - GMC Sierra 2500 HD | V | - | 8 Cyl 8.1L | 496 |
- Greasable
- 4WD, 133" Wheelbase, Allison Trans; 4WD, 167" Wheelbase, Excludes Allison Trans; 4WD, 167" Wheelbase, Allison Trans; 4WD, 143.5" Wheelbase, 4-Speed Trans, 2" Body Raise; 4WD, 143.5" Wheelbase, Allison Trans
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 2003 - GMC Sierra 2500 HD | V | - | 8 Cyl 8.1L | 496 |
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 2003 - GMC Sierra 2500 HD | V | 6599 | 8 Cyl 6.6L | 403 |
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