National Drivetrain 3.73 Ring & Pinion + Master Bearing Install Kit – GM 12 Bolt Car
National Drivetrain 3.73 Ring & Pinion + Master Bearing Install Kit – GM 12 Bolt Car
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National Drivetrain 3.73 Ring & Pinion + Master Bearing Install Kit – GM 12 Bolt Car

4.5 stars out of 10 reviews
(4.5)|
45 ratings

About this item

Rebuilding a GM 12-bolt car rear end?

10.5 GM 14 Bolt 3.73 Rear Ring & Pinion, Install Kit, 30 Spline Posi 81989e02 30f1 466c B29f 751faf56d881.836aaba4adfc4f2d43e5610e81ff4f52

This kit from National Drivetrain has you covered.

GM 12-Bolt CAR Gears - 3.73 Ratio & Master Bearing / Installation Kit - NEW

It includes a 3.73 ring and pinion gear set plus a master bearing installation kit – everything you need to set up the gears properly.

Yukon Gear & Axle YGK2229 Yukon Gear & Axle Ring and Pinion Gear and Installation Kit Combos | Summit Racing

Perfect for performance builds or replacing worn-out gears.

The part number is 12BC373T R12CRMK.

3.73 RING AND PINION & MASTER BEARING INSTALL KIT - FITS GM 12 Bolt Truck Thick

It's brand new and comes with a warranty.

3.73 Ring And Pinion & Master Bearing Install Kit Compatible With Gm

National Drivetrain is known for quality drivetrain components.

Get that gear ratio dialed in for better acceleration.

$ 109.75
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4.5 out of 5 stars
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