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Summit Racing™ Ring and Pinion and Differential Pro Packs
Combo, Differential, Traction-Lok, Ring and Pinion, 3.55:1 Ratio, Install Kit, Ford, 8.8 in.. 31 Spline, Kit
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Estimated Ship Date from GA, TX: Monday 10/26/2026 Would you rather pick it up?
Kit/Combo Contents
Ford Performance Parts M-4204-F318C - Ford Performance Parts Traction-Lok Differentials
Differential, Trac-Lok, 31-Spline, Ford, 8.8 in., Each
Kit Item Quantity: 1
Red Line Synthetic Oil 57904 - Red Line GL-5 Gear Oil
Gear Lube, Transmission Fluid and Gear Oil, 75W90, Limited Slip, Synthetic, 1 qt., Each
Kit Item Quantity: 2
Red Line Synthetic Oil 80301 - Red Line Friction Modifier and Break-In Additive
Friction Modifier, for Clutch-Type Limited-Slip Differentials, 4 fluid oz., Each
Kit Item Quantity: 1
Excel Ring Pinion and Axle F88355 - Richmond Gear EXCel Ring and Pinion Sets
Gear, Ring and Pinion, EXCel, 3.55:1 Ratio, Ford, 8.8 in., 10-Bolt, Set
Kit Item Quantity: 1
Summit Racing SUM-G7919K - Summit Racing™ Master Ring and Pinion Installation Kits
Installation Kit, Ring and Pinion, Basic, Ford, 8.8 in., Kit
Kit Item Quantity: 1
Overview
Brand:
Manufacturer's Part Number:
14-0063
Part Type:
Product Line:
Summit Racing Part Number:
CMB-14-0063
Differential Case Design Type:
Ford 8.8 in.
Aftermarket Carrier Style:
Clutch-type
Axle Shaft Spline Quantity:
31
Ring and Pinion Ratio:
3.55:1
Cover Bolts:
10
Ring Gear Bolts:
10
Pinion Spline Count:
30
Ring Gear Rotation:
Standard
Ring Gear Teeth:
39
Pinion Gear Teeth:
11
Ring Gear Diameter (in.):
8.800 in.
Pinion Shaft Diameter (in.):
1.626 in.
Cover Gasket Included:
Yes
Pinion Shims Included:
Yes
Carrier Shims Included:
Yes
Crush Sleeve Included:
Yes
Pinion Seal Included:
Yes
Pinion Nut Included:
Yes
Ring Gear Bolts Included:
Yes
Head Bearing Included:
Yes
Tail Bearing Included:
Yes
Carrier Bearings Included:
Yes
Axle Seals Included:
No
Axle Bearings Included:
No
Friction Modifier Included:
Yes
Differential Oil Included:
Yes
Differential Oil Type:
75W90
Differential Oil Quantity Included:
2 qt.
Quantity:
Sold as a kit.
Special Attention:
Hazardous items are only returnable in person to a retail store due to strict shipping regulations.
Summit Racing™ Ring and Pinion and Differential Pro Packs
Put that horsepower to the ground through both wheels. These Summit Racing™ ring and pinion and differential Pro Packs feature the parts necessary to complete your rear differential transformation. They include a Traction-Lock differential from Ford Racing, a ring and pinion gear set, a ring and pinion installation kit, a 4 oz. bottle of friction modifier, and 2 qt. of 75W90 gear lube. These Summit Racing™ ring and pinion and differential Pro Packs come available in different gear ratios, so we are sure to have one to suit your vehicle's needs.
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