Street. Track. Everything between.
Your garage Find parts for your vehicle Select year, make and model to narrow your search.

Motive Gear Performance Ring and Pinion Sets G885373 GM 8.5/8.6 in. 3.73 Gears Gear, Pinion, 3.73:1 Ratio, GM, in., Set

SKU: MGRG885373

Ring and Pinion Gears

Motive Gear Performance Ring and Pinion Sets G885373 GM 8.5/8.6 in. 3.73 Gears Gear, Pinion, 3.73:1 Ratio, GM, in., Set

SKU: MGRG885373

Ring and Pinion Gears
A$920.80
LOW STOCK! Est Ship 4-7 days. HURRY! LOW STOCK. This item is in limited stock at one of our distribution centres. The ETA is the approximate time required to prepare your order for dispatch.
View cart 0
We accept
American Express
Mastercard
Visa
PayPal Checkout
Direct Deposit
Afterpay
Apple Pay
Google Pay
Zip Pay

Description

IMPORTANT NOTICE: The pinion in this gear set will accept the factory ABS reluctor. Must use 2.73:1 or numerically higher ratio carrier.

Motive Gear Performance ring and pinions are perfect for dedicated racing or off-road vehicles. Their gear sets are made from first-run steel, they never use recycled metal. This allows Motive Gear Performance ring and pinions to handle the extreme torque from high-horsepower racing engines. Extensive engineering, computer-controlled heat treatment, superior strength, quality and the widest selection of racing gear ratios, makes Motive Gear Performance ring and pinions the clear winner! Engineered to the highest standards, every Motive Gear Performance product goes through rigid quality control processes in their in-house lab.

Motive Gear Performance also offers a lightweight alternative to standard ring and pinion gear sets. Their AX Series ring and pinions are designed to increase horsepower and efficiency by removing rotating weight. Professional race teams have used custom-lightened drivetrain parts for years, resulting in faster times and more wins. The AX Series gears from Motive are lightened during the manufacturing process; this results in gear sets that have been engineered, not modified. Computer-controlled heat treatment, index tooth spacing, and CNC machining all go into AX Series performance gear sets. Motive Gear Performance: What the pros run!

Part Type

GM 8.5in Ring & Pinion 3.73 Ratio

Data: v4.2 - Upd: 2026-10-14 11:09:47

Specifications

Product Attributes - Brand
Motive Gear
Product Attributes - Manufacturer's Part Number
G885373
Product Attributes - Part Type
Ring and Pinion Gears
Product Attributes - Product Line
Motive Gear Performance Ring and Pinion Sets
Product Attributes - UPC
698231021934
Product Attributes - Differential Case Design Type
GM 8.5/8.6 in.
Product Attributes - Ring and Pinion Ratio
3.73:1
Product Attributes - Cover Bolts
10
Product Attributes - Ring Gear Bolts
10
Product Attributes - Pinion Spline Count
30
Product Attributes - Ring Gear Rotation
Standard
Product Attributes - Ring Gear Teeth
41
Product Attributes - Pinion Gear Teeth
11
Product Attributes - Ring Gear Diameter (in.)
8.500 in.
Product Attributes - Pinion Shaft Diameter (in.)
1.626 in.
Product Attributes - Installation Kit Included
No
Product Attributes - Cover Gasket Included
No
Product Attributes - Pinion Shims Included
No
Product Attributes - Carrier Shims Included
No
Product Attributes - Crush Sleeve Included
No
Product Attributes - Pinion Seal Included
No
Product Attributes - Pinion Nut Included
No
Product Attributes - Ring Gear Bolts Included
No
Product Attributes - Head Bearing Included
No
Product Attributes - Tail Bearing Included
No
Product Attributes - Carrier Bearings Included
No
Product Attributes - Axle Seals Included
No
Product Attributes - Axle Bearings Included
No
Product Attributes - Differential Cover Included
No
Product Attributes - Differential Oil Included
No
Product Attributes - Friction Modifier Included
No
Product Attributes - Installation DVD Included
No
Product Attributes - Quantity
Sold as a set.
Product Attributes - Notes
The pinion in this gear set will accept the factory ABS reluctor. Must use 2.73:1 or numerically higher ratio carrier.

Reference Information

Brand Name/s Motive Gear
StreetFX SKU mgrG885373
SFX Item ID 4797702
Supplier Item Code 4797702
Manufacturer SKU G885373
Manufacturer UPC 698231021934
Alternative References MOTG885373

Compatibility

Application Data
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Engine TypeL6
    Engine Size4.1L/250
    Engine FamilyGM inline 6-cylinder
    Axle LocationRear
    Liter4.1
    CID250
    CC4097
    Engine VIN CodeD
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Engine TypeL6
    Engine Size4.1L/250
    Engine FamilyGM inline 6-cylinder
    Axle LocationRear
    Liter4.1
    CID250
    CC4097
    Engine VIN CodeD
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Engine TypeL6
    Engine Size4.1L/250
    Engine FamilyGM inline 6-cylinder
    Axle LocationRear
    Liter4.1
    CID250
    CC4097
    Engine VIN CodeD
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Engine TypeL6
    Engine Size4.1L/250
    Engine FamilyGM inline 6-cylinder
    Axle LocationRear
    Liter4.1
    CID250
    CC4098
    Engine VIN CodeD
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Engine TypeL6
    Engine Size4.1L/250
    Engine FamilyGM inline 6-cylinder
    Axle LocationRear
    Liter4.1
    CID250
    CC4098
    Engine VIN CodeD
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Engine TypeL6
    Engine Size4.1L/250
    Engine FamilyGM inline 6-cylinder
    Axle LocationRear
    Liter4.1
    CID250
    CC4098
    Engine VIN CodeD
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyBuick V8
    Axle LocationRear
    Liter5.7
    CID350
    Engine VIN CodeH
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyBuick V8
    Axle LocationRear
    Liter5.7
    CID350
    Engine VIN CodeH
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyBuick V8
    Axle LocationRear
    Liter5.7
    CID350
    Engine VIN CodeH
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyBuick V8
    Axle LocationRear
    Liter5.7
    CID350
    Engine VIN CodeJ
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyBuick V8
    Axle LocationRear
    Liter5.7
    CID350
    Engine VIN CodeJ
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyBuick V8
    Axle LocationRear
    Liter5.7
    CID350
    Engine VIN CodeJ
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1975
    Ending Year1975
    Engine TypeL6
    Engine Size4.1L/250
    Engine FamilyGM inline 6-cylinder
    Axle LocationRear
    Liter4.1
    CID250
    Engine VIN CodeD
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1975
    Ending Year1975
    Engine TypeL6
    Engine Size4.1L/250
    Engine FamilyGM inline 6-cylinder
    Axle LocationRear
    Liter4.1
    CID250
    Engine VIN CodeD
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1975
    Ending Year1975
    Engine TypeL6
    Engine Size4.1L/250
    Engine FamilyGM inline 6-cylinder
    Axle LocationRear
    Liter4.1
    CID250
    Engine VIN CodeD
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1975
    Ending Year1975
    Engine TypeV8
    Engine Size4.3L/260
    Engine FamilyOldsmobile V8
    Axle LocationRear
    Liter4.3
    CID260
    Engine VIN CodeF
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1975
    Ending Year1975
    Engine TypeV8
    Engine Size4.3L/260
    Engine FamilyOldsmobile V8
    Axle LocationRear
    Liter4.3
    CID260
    Engine VIN CodeF
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1975
    Ending Year1975
    Engine TypeV8
    Engine Size4.3L/260
    Engine FamilyOldsmobile V8
    Axle LocationRear
    Liter4.3
    CID260
    Engine VIN CodeF
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1975
    Ending Year1975
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyOldsmobile V8
    Axle LocationRear
    Liter5.7
    CID350
    CC5733
    Engine VIN CodeH
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1975
    Ending Year1975
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyOldsmobile V8
    Axle LocationRear
    Liter5.7
    CID350
    CC5733
    Engine VIN CodeH
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1975
    Ending Year1975
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyOldsmobile V8
    Axle LocationRear
    Liter5.7
    CID350
    CC5733
    Engine VIN CodeH
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1975
    Ending Year1975
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyOldsmobile V8
    Axle LocationRear
    Liter5.7
    CID350
    CC5733
    Engine VIN CodeJ
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1975
    Ending Year1975
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyOldsmobile V8
    Axle LocationRear
    Liter5.7
    CID350
    CC5733
    Engine VIN CodeJ
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1975
    Ending Year1975
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyOldsmobile V8
    Axle LocationRear
    Liter5.7
    CID350
    CC5733
    Engine VIN CodeJ
  • MakeBUICK
    ModelAPOLLO
    SubmodelSR
    Beginning Year1975
    Ending Year1975
    Engine TypeL6
    Engine Size4.1L/250
    Engine FamilyGM inline 6-cylinder
    Axle LocationRear
    Liter4.1
    CID250
    Engine VIN CodeD

Loading compatibility information...

Keep shopping

More from Motive Gear