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Motive Gear Performance Ring and Pinion Sets C887373L Chrysler 8.75 in. 489 case 3.73 Gears Gear, Pinion, 3.73:1 Ratio, Chrysler, in., Housing, Set

SKU: MGRC887373L

Ring and Pinion Gears

Motive Gear Performance Ring and Pinion Sets C887373L Chrysler 8.75 in. 489 case 3.73 Gears Gear, Pinion, 3.73:1 Ratio, Chrysler, in., Housing, Set

SKU: MGRC887373L

Ring and Pinion Gears

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A$891.39 A$1,093.39
IN STOCK! Est Ship 4-7 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
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Description

IMPORTANT NOTICE: Note for Pistons, Rings, Rotors, Rods and engine internalsUnless otherwise specified, some brands supply brake rotors, pistons, rods and rings separately. In some cases, titles may indicate plural, or 'set' - eg the term “ring set” often refers to the rings for a single piston only. If you’re unsure about what’s included with this product, please contact our team for clarification.(keyword: ring)Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.Reference Information Reference Data (Provide these details to our support team) Brand Name/s Motive Gear StreetFX SKU mgrC887373L SFX Item ID 4798273 Accounting SKU mgr-C887373L Manufacturer SKU C887373L Manufacturer UPC 698231436400 Alternative References MGR-C887373L, MOTC887373L

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Ring and Pinion - Performance - 3.73 Ratio - 29 Spline Pinion - 489 Case - Mopar 8.75 in - Kit


Data: v2 - Desc: v4.2 - Upd: 2026-10-14 02:32:45

Part Type

Chrysler 8.75in. 3.73 Rat. 489 Housing

Data: v4.2 - Upd: 2026-10-08 16:20:11

Specifications

Gear, Ring and Pinion, 3.73:1 Ratio, Chrysler, 8.75 in., 489 Housing, Set

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!

Product Attributes
BrandMotive Gear
Manufacturer's Part NumberC887373L
Part TypeRing and Pinion Gears
Product LineMotive Gear Performance Ring and Pinion Sets
UPC698231436400
Differential Case Design TypeChrysler 8.75 in., 489 case
Ring and Pinion Ratio3.73:1
Ring Gear Bolts12
Pinion Spline Count29
Ring Gear RotationStandard
Ring Gear Teeth41
Pinion Gear Teeth11
Ring Gear Diameter (in.)8.750 in.
Pinion Shaft Diameter (in.)1.875 in.
Installation Kit IncludedNo
Cover Gasket IncludedNo
Pinion Shims IncludedNo
Carrier Shims IncludedNo
Crush Sleeve IncludedNo
Pinion Seal IncludedNo
Pinion Nut IncludedNo
Ring Gear Bolts IncludedNo
Head Bearing IncludedNo
Tail Bearing IncludedNo
Carrier Bearings IncludedNo
Axle Seals IncludedNo
Axle Bearings IncludedNo
Differential Cover IncludedNo
Differential Oil IncludedNo
Friction Modifier IncludedNo
Installation DVD IncludedNo
QuantitySold as a kit.
NotesFor use with 489 casting housings only.

Reference Information

Brand Name/s Motive Gear
StreetFX SKU mgrC887373L
SFX Item ID 4798273
Supplier Item Code 4798273
Manufacturer SKU C887373L
Manufacturer UPC 698231436400
Alternative References MOTC887373L

Compatibility

No specific fitment data available for this part. For clarification, please contact us.

Detailed Compatibility


Application Data
MakeCHRYSLER
Model300
SubmodelBASE
Beginning Year1970
Ending Year1971
Engine TypeV8
Engine Size7.2L/440
Engine FamilyMopar big block RB
Axle LocationRear
Liter7.2
CID440
CC7211
Engine VIN CodeT
MakeCHRYSLER
Model300
SubmodelBASE
Beginning Year1970
Ending Year1971
Engine TypeV8
Engine Size7.2L/440
Engine FamilyMopar big block RB
Axle LocationRear
Liter7.2
CID440
CC7211
Engine VIN CodeU
MakeCHRYSLER
ModelIMPERIAL
SubmodelCROWN
Beginning Year1970
Ending Year1970
Engine TypeV8
Engine Size7.2L/440
Engine FamilyMopar big block RB
Axle LocationRear
Liter7.2
CID440
CC7211
Engine VIN CodeT

This may not be an exhaustive list of compatible vehicles. Please reach out to one of our representatives if you are unsure or do not see your vehicle here.

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