RPM Outlet - We Take The Guesswork Out Of Performance Parts!
  DYNO PROVEN TO PROVIDE THE LARGEST HORSEPOWER GAINS FOR THE 03-04 FORD MUSTANG COBRA
Click-Here for more information on our 03 Cobra project carSTRATEGY

In keeping with our goal of providing our customers with the best possible value, we have tested a large group of components specifically designed for the 03-04 Mustang COBRA.

We have invested many hours evaluating and refining each of the Cobra products on our chassis “dyno”, to ensure that we could develop as much power as possible, as safely as possible. End result is our now available "Dyno Tuned Options".

Our site menu on the left side of this page, lists the clear winners when it comes to “performance vs. dollar” value. Please check back often as we are always developing new ways to create more horsepower.




MOTIVE GEAR Mustang V-8 Series 8.8" Ring and Pinion Gear Sets
(ford racing brand listed at the bottom of this page)


MOTIVE GEAR ring and pinion sets for our V8 enthusiasts. These sets will greatly improve your acceleration and will bring your car up to a new level of performance.

All MOTIVE GEARS are CNC-cut from 8620 gear steel, factory lapped for presision fit, and Rockwell tested for hardness.

MOTIVE GEAR DIFFERENTIAL BEARING KIT: Kits include Front & Reat Pinion Bearing, Pinion Seal, Carrier Bearings, Gear Marking compound, crush sleeve, pinion nut, brush, loctite and cover gasket or rtv.

Gear Ratio + Tire Height=RPM: Click-Here for Gear Ratio Chart. This is a great tool when deciding what gear ration would be best for your application.



Part # Part Description Price
   MTVF8.8410
    MOTIVE GEAR Ring and Pinion Set
  • 8.8" Gear Set 4.10 ratio
$169.95
   MTVF8.8373
    MOTIVE GEAR Ring and Pinion Set
  • 8.8" Gear Set 3.73 ratio
$169.95
   MRG-9893G
    MR.GASKET 8.8" CHROME REAR-END COVER
  • High-luster chrome finish, includes gasket and mounting bolts
$ 29.95
   MRG-142
    MR.GASKET 8.8" REUSABLE DIFFERENTIAL GASKET
  • This is a must when installing new gears!
$ 9.95
   ROY-01303
    ROYAL PURPLE Limited Slip Gear Lube
  • 85W140 Synthetic Max Gear Oil
$ 8.95
   FMSM19546A
    FORD RACING Posi-Traction (Traction Lok) ADDITIVE
  • 4-Ounce Friction Modifie additive
$ 8.95
   MTVR8.8MKT       MOTIVE GEAR MASTER DIFFERENTIAL BEARING KIT: (Timkin brg.)
  • Front & Reat Pinion Bearing
  • Carrier Bearings
  • Carrier Shims
  • Differential Bearings
  • Ring Gear Bolts
  • Brush, Gear Marking compound
  • Crush sleeve, Pinion nut, Pinion Seal
  • Loctite and cover gasket or rtv
  • $109.95
       MTVR8.8T       MOTIVE GEAR DIFFERENTIAL BEARING KIT: (Timkin brg.)
    • Front & Reat Pinion Bearing
    • Pinion Seal
    • Carrier Bearings
  • Brush, Gear Marking compound
  • Crush sleeve, Pinion nut
  • Loctite and cover gasket or rtv
  • $ 82.95
       FMSM-4700-B
      FORD RACING 8.8" TRACTION-LOK REBUILD KIT
    • Kit includes clutch pack, shims, friction modifier and instruction sheet
    • Fits all 8.8" Traction-Lok differentials
    $ 44.95

    Click-On Price to Order




    Lakewood Limited Slip Gear Lube


    Reduce friction and improve your performance. Lakewood Synthetic Blend BFL® racing gear lubes are the finest, extreme-pressure, high performance gear lubes available. They cut friction and reduce wear by over 50%. Proven a must in the four second dragsters and funny cars, BFL® is now used extensively in all types of race cars as well as on the street.

    BFL® racing gear lube (red label), part no. 32950, is for any gear type transmission and straight hypoid differential including Detroit Locker. It is not designed for clutch-type units.

    BFL® limited slip lube (yellow label), part no. 32970, is for use in clutch-type limited slip differentials. It contains special friction modifiers to eliminate chatter and excessive wear.

      Lakewood BFL® Racing Gear Lubes Feature :

    • BFL® Racing Gear Lubes help guard against differential lock-up.
    • BFL® Racing Gear Lubes help guard against welding, scuffing and scoring.
    • BFL® Racing Gear Lubes increase usable H.P. by reducing friction.
    • BFL® Racing Gear Lubes need no viscosity improvers...comes in easy to use poly bottles.



    Part # Part Description Price
       LAK-32950
      Lakewood Synthetic Blend BFL® Racing Gear Lube (red label)
    • Stright Synthetic Blend Hypoid Gear Lube, 75w-90, 32 oz (ea)
    $ 8.95
       LAK-32970
      Lakewood BFL® Limited Slip Gear Lube (yellow label)
    • Limited Slip Gear Lube, Synthetic Blend, 80w-90, 32 oz (ea)
    $ 8.95
       ROY-01300
      ROYAL PURPLE Limited Slip Gear Lube
    • 75w-90, 32 oz (ea) Synthetic Max Gear Oil
    $ 8.95
       ROY-01303
      ROYAL PURPLE Limited Slip Gear Lube
    • 85W140 Synthetic Max Gear Oil
    $ 8.95
       FMSM19546A
      FORD RACING Posi-Traction (Traction Lok) ADDITIVE
    • 4-Ounce Friction Modifie additive
    $ 8.95

    Click-On Price to Order





    FORD RACING Mustang V-8 Series 8.8" Ring and Pinion Gear Sets

    Part # Application Price
       FMS-M-4209F373
      Ford Racing Ring and Pinion Set
    • 8.8" Gear Set 3.73 ratio
    $ 239.95
       FMS-M-4209G410
      Ford Racing Ring and Pinion Set
    • 8.8" Gear Set 4.10 ratio
    $ 239.95
       MRG-9893G
      MR.GASKET 8.8" CHROME REAR-END COVER
    • High-luster chrome finish, includes gasket and mounting bolts
    $ 29.95
       MRG-142
      MR.GASKET 8.8" REUSABLE DIFFERENTIAL GASKET
    • This is a must when installing new gears!
    $ 9.95
       ROY-01303
      ROYAL PURPLE Limited Slip Gear Lube
    • 85W140 Synthetic Max Gear Oil
    $ 8.95
       FMSM19546A
      FORD RACING Posi-Traction (Traction Lok) ADDITIVE
    • 4-Ounce Friction Modifie additive
    $ 8.95
       MTVR8.8MKT       MOTIVE GEAR MASTER DIFFERENTIAL BEARING KIT: (Timkin brg.)
    • Front & Reat Pinion Bearing
    • Carrier Bearings
    • Carrier Shims
    • Differential Bearings
  • Ring Gear Bolts
  • Brush, Gear Marking compound
  • Crush sleeve, Pinion nut, Pinion Seal
  • Loctite and cover gasket or rtv
  • $109.95
       MTVR8.8T       MOTIVE GEAR DIFFERENTIAL BEARING KIT: (Timkin brg.)
    • Front & Reat Pinion Bearing
    • Pinion Seal
    • Carrier Bearings
  • Brush, Gear Marking compound
  • Crush sleeve, Pinion nut
  • Loctite and cover gasket or rtv
  • $ 82.95
       FMSM-4700-B
      FORD RACING 8.8" TRACTION-LOK REBUILD KIT
    • Kit includes clutch pack, shims, friction modifier and instruction sheet
    • Fits all 8.8" Traction-Lok differentials
    $ 44.95

    Click-On Price to Order



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