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Dorman 697-803 Differential Ring and Pinion - RearOE Quality 60-Day Returns
Part #: 697-803

Dorman 697-803 Differential Ring and Pinion - Rear

Rear
67 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Buick, Oldsmobile, and Pontiac, Electra, GS, GS 455, Skylark, Sportwagon, Cutlass, Cutlass Supreme, Bonneville, Catalina, Grand Prix, GTO, 442, Firebird, Tempest, GS 350, GS 400, Special, and Gran Sport
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Reliable Differential Ring and Pinion for Buick, Oldsmobile, Pontiac

The Dorman 697-803 differential ring and pinion set is designed to restore proper driveline function in select Buick, Oldsmobile, and Pontiac vehicles. With a gear ratio of 3.73, this standard replacement part provides a precise fit for models such as the Bonneville, Catalina, Cutlass, Firebird, Grand Prix, GTO, Skylark, and Tempest.

  • Gear ratio: 3.73 for accurate drivetrain performance
  • Includes both ring gear and pinion gear
  • Standard replacement grade for dependable durability
  • Compatible with multiple Buick, Oldsmobile, and Pontiac models
  • Part number 697-803 for easy identification and ordering

Product Details and Specifications

This Dorman differential ring and pinion set (part number 697-803) is engineered to meet OEM specifications for a range of classic American vehicles. The 3.73 gear ratio is optimized for balanced torque and speed, ensuring smooth power transfer through the driveline. The package contains both the ring gear and pinion gear, allowing for a complete replacement of worn or damaged components. This product is a standard replacement grade, providing reliable performance without the need for an installation kit, which is not included.

Compatible Vehicles and Applications

This differential ring and pinion set is compatible with the following makes and models:

  • Buick Bonneville
  • Oldsmobile Catalina, Cutlass, Cutlass Supreme
  • Pontiac Firebird, Grand Prix, GTO, Skylark, Tempest

It is ideal for restoring driveline function in vehicles experiencing issues related to worn differential gears.

Common Issues Addressed by This Differential Set

  • Excessive gear noise or whining from the differential
  • Vibration or roughness during acceleration or deceleration
  • Uneven or slipping power delivery to the wheels
  • Worn or damaged ring and pinion gears causing drivetrain inefficiency
  • Leaks or damage resulting from gear wear or failure

Installation Notes and Tips

Installation of the Dorman 697-803 differential ring and pinion requires professional tools and expertise. Proper gear pattern setup and torque specifications must be followed to ensure optimal performance and longevity. Note that this product does not include an installation kit, so additional components such as bearings, seals, and shims may need to be sourced separately. It is recommended to inspect all related driveline components during installation.

Quality Assurance and Warranty

Dorman manufactures this differential ring and pinion set to meet industry standards for durability and fitment. The standard replacement grade ensures consistent performance aligned with original equipment specifications. While no specific warranty details are provided, Dorman products typically come with limited warranties covering defects in materials and workmanship. Verify warranty terms with the distributor or installer prior to purchase.

BrandDorman
Part Number697-803
Gear Ratio3.73
Installation Kit IncludedNo
Item GradeStandard Replacement
Package ContentsRing Gear; Pinion Gear

This part fits 67 vehicles. Search below:

YearMakeModelPositionNotes
1972BuickSkylarkRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1972OldsmobileCutlassRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1972OldsmobileCutlass SupremeRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1972PontiacBonnevilleRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1972PontiacCatalinaRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1972PontiacGrand PrixRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1972PontiacGTORear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1971BuickSkylarkRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1971OldsmobileCutlassRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1971OldsmobileCutlass SupremeRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1971PontiacBonnevilleRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1971PontiacCatalinaRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1971PontiacFirebirdRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1971PontiacGrand PrixRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1971PontiacGTORear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1970BuickSkylarkRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1970OldsmobileCutlassRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1970OldsmobileCutlass SupremeRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1970PontiacBonnevilleRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1970PontiacCatalinaRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1970PontiacFirebirdRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1970PontiacGrand PrixRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1970PontiacGTORear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1970PontiacTempestRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1969BuickSkylarkRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1969OldsmobileCutlassRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1969OldsmobileCutlass SupremeRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1969PontiacBonnevilleRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1969PontiacCatalinaRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1969PontiacFirebirdRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1969PontiacGrand PrixRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1969PontiacGTORear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1969PontiacTempestRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1968BuickSkylarkRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1968OldsmobileCutlassRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1968OldsmobileCutlass SupremeRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1968PontiacBonnevilleRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1968PontiacCatalinaRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1968PontiacFirebirdRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1968PontiacGrand PrixRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1968PontiacGTORear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1967BuickSkylarkRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1967OldsmobileCutlassRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1967OldsmobileCutlass SupremeRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1967PontiacBonnevilleRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1967PontiacCatalinaRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1967PontiacFirebirdRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1967PontiacGrand PrixRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1967PontiacGTORear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1966BuickSkylarkRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1966OldsmobileCutlassRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1966PontiacBonnevilleRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1966PontiacCatalinaRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1966PontiacGrand PrixRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1966PontiacGTORear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1965BuickSkylarkRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1965OldsmobileCutlassRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1965PontiacBonnevilleRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1965PontiacCatalinaRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1965PontiacGrand PrixRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1965PontiacGTORear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1964BuickSkylarkRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1964OldsmobileCutlassRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1964PontiacBonnevilleRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1964PontiacCatalinaRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1964PontiacGrand PrixRear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design
1964PontiacGTORear8.25 In. Ring Gear; w/3.73 Axle Ratio; wo/C-Clip Design

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

ZG GMBOP-373

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

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