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Richmond Gear

Richmond Gear EXCel Ring and Pinion Sets 12BC373 GM 8.875 in. (12-bolt) passenger car 3.73 Gears Gear, Pinion, EXCel, 3.73:1 Ratio, GM, in., 12-Bolt Car, Set

SKU: RMG12BC373

Ring and Pinion Gears
Richmond Gear EXCel Ring and Pinion Sets 12BC373 GM 8.875 in. (12-bolt) passenger car 3.73 Gears Gear, Pinion, EXCel, 3.73:1 Ratio, GM, in., 12-Bolt Car, Set

Richmond Gear

Richmond Gear EXCel Ring and Pinion Sets 12BC373 GM 8.875 in. (12-bolt) passenger car 3.73 Gears Gear, Pinion, EXCel, 3.73:1 Ratio, GM, in., 12-Bolt Car, Set

SKU: RMG12BC373

Ring and Pinion Gears
A$652.89
LAST ONE! Est Ship 4-7 days. LAST ONE! This is the last unit at our distribution centre. Contact us if you need more. The ETA is the approximate time required to prepare your order for dispatch.
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Description

Richmond Gear EXCel ring and pinion sets are manufactured to meet the exacting specifications required by Richmond Gear. The design, tooling, steel selection, and heat-treat recipes are all controlled by Richmond Gear to produce cost-alternative ring and pinion sets. The Richmond Gear EXCel ring and pinion sets offer exceptional value with better-than-OEM quality. Available in a wide variety of gear ratios, the Richmond Gear EXCel ring and pinion sets will give you maximum confidence in your differential.

Part Type

Excel Ring & Pinion Gear Set GM 12Bolt 3.73 Ratio

Data: v4.2 - Upd: 2026-10-03 01:32:51

Specifications

Product Attributes - Brand
Excel Ring Pinion and Axle
Product Attributes - Manufacturer's Part Number
12BC373
Product Attributes - Part Type
Ring and Pinion Gears
Product Attributes - Product Line
Richmond Gear EXCel Ring and Pinion Sets
Product Attributes - UPC
698231743621
Product Attributes - Differential Case Design Type
GM 8.875 in. (12-bolt), passenger car
Product Attributes - Ring and Pinion Ratio
3.73:1
Product Attributes - Cover Bolts
12
Product Attributes - Ring Gear Bolts
12
Product Attributes - Pinion Spline Count
30
Product Attributes - Carrier Series
4
Product Attributes - Ring Gear Rotation
Standard
Product Attributes - Ring Gear Teeth
41
Product Attributes - Pinion Gear Teeth
11
Product Attributes - Ring Gear Diameter (in.)
8.875 in.
Product Attributes - Pinion Shaft Diameter (in.)
1.625 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 - Special Attention
Thin cut gear fits 4:10:1 and numerically higher series 4 carriers.

Reference Information

Brand Name/s Richmond Gear
StreetFX SKU rmg12BC373
SFX Item ID 5500691
Supplier Item Code 5500691
Manufacturer SKU 12BC373
Manufacturer UPC 698231743621
Alternative References RIC12BC373, 12-Bolt

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