8.8" 3.73 US RING GEAR AND PINION

8.8" 3.73 US RING GEAR AND PINION
M-4209-88373B
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Each (1)
Instruction Sheet
Not Available
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WARNING:
This part is designed and intended for competition use only or off-highway use only. It should not be installed on a vehicle that is driven on public roads and highways. Installation of this part on a vehicle driven on public roads and highways is likely to violate U.S. and Canadian laws and regulations relating to motor vehicle emissions.

High Quality 8.8" 3.73:1 US Made Gear Sets

The 8.8" rear end has been the standard in performance since its introduction in the Mustang in 1986.  

  • Made in the United States - Competitors gear sets in our price range are primarily produced in China
  • Superior quality - The superior surface finish, hardening, and manufacturing consistency provide the strongest and quietest 8.8" gears in the market!  High quality gears means more satisfied customers!
  • Race Proven - These High Performance 8.8" gears are race proven by many championship road racing and drag racing teams 

M-4209-88308

8.8" 3.08 RING & PINION

M-4209-88315

8.8" 3.15 RING & PINION

M-4209-88327

8.8" 3.27 RING & PINION

M-4209-88331

8.8" 3.31 RING & PINION

M-4209-88355

8.8" 3.55 RING & PINION

M-4209-88373

8.8" 3.73 RING & PINION

M-4209-88410

8.8" 4.10 RING & PINION

M-4209-88456

8.8" 4.56 RING & PINION

For Ring Gear and Pinion installation instructions CLICK HERE 

When you're purchasing a new 8.8" gear set make sure your bearings and shims are up to the task with Ford Performance High Performance Installation Kits!

8.8" Installation Kits

Ford Performance recommends our installation kits for all 8.8" ring & pinion gear sets. 

Our install kits use the highest quality components and are often upgrades to what the vehicle came with


M-4210-A

M-4210-B2

M-4210-C3

Perfect for gear installation in new vehicles with new bearings

Excellent upgrade for all 8.8" rear ends - high torque bearing gives added durability for modified vehicles 

Ideal for completely freshening an 8.8" solid axle

Fits all 8.8-inch axles 1986-present including IRS

Fits all 8.8-inch axles 1986-present including IRS

Fits all 8.8-inch axles 1986-2004 except IRS

Kit includes: pinion and carrier shims, crush sleeve, pinion seal, pinion nut, ring gear bolts.

Contains all components from M-4210-A plus all differential bearings

Contains all components from M-4210-B2 plus 8.8" AXLE BEARING AND SEAL KIT M-1225-B


Kit includes: pinion and carrier shims, crush sleeve, pinion seal, pinion nut, ring gear bolts, high-torque pinion bearing, OE carrier bearings, gear marking compound, and cover gasket.

Kit includes: pinion and carrier shims, crush sleeve, pinion seal, pinion nut, ring gear bolts, high-torque pinion bearing, OE carrier bearings, gear marking compound, cover gasket, outer axle seals and bearings.

Part Type
D-Line: Ring & Pinion
Warranty Availability
Not Available
Package Dimensions
11.5" x 5.5" x 15"
Package Weight
19.5 lb(s)
UPC Code
756122011201
Country of Origin
United States