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Vehicle Info NeededMOTIVE GEARPART NUMBER: 683-F990389BP
Ring & Pinion Gear Ratio: 3.89
$72722
Ships on 09/16/2026
Lowest Price GuaranteeFord 9" Performance
- Ring & Pinion Gear
- Ratio: 3.89
- Teeth: 35-9
- Big Pinion
Style Pro - 8620 Material
- Heat Treated
OEM-Quality Ring and Pinions
Motive Gear Ring & Pinion Gears are the differential's critical point of power transfer and one of the easiest performance modifications to complete on a vehicle. Motive's high-quality Ring & Pinion Gears are made from 8620 steel for superior strength and come in a range of ratios, making them excellent factory replacements for both on-street and off-road vehicles.
Part TypeRing and Pinion
Product LineMotive Gear Ring & Pinion Gears
BrandMOTIVE GEAR
Package Height5.3
Package Width11.1
Package Length15.1
Weight19.12 PG
Part CategoryPerformance Parts
Ring Gear RotationStandard
Ring Gear Material9310 Steel
Ring Gear Diameter9 in (228.6 mm)
Ring Gear Tooth Quantity35
Pinion Shaft Diameter1.87 in (47.5 mm)
Pinion Gear Tooth Quantity9
Axle TypeFord 9 in.
Ring Gear Bolt Quantity10
Part FitmentSemi Universal
Cover Bolt QuantityDropout
Pinion Spline Count35
Vendor Part NumberF990389BP
Package Qty1
Package TypeEA
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