Maximum Motorsports Ford Racing IRS differential cover, modified by MM, 1999-2004 Cobra MM-4033-G3

Maximum Motorsports
SKU: MM-4033-G3
Availability: 5 in stock
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High-strength FRPP differential cover for the Cobra IRS, modified by Maximum Motorsports to provide clearance for use with the MM aluminum differential mounts.

  • This FRPP cover is an excellent upgrade for the Cobra IRS, offering greatly increased strength over the stock cover.
  • Has clearance to allow installing the MM aluminum differential mounts. The pinion-adjustment ability of the MM aluminum mounts lowers the differential cover relative to the IRS subframe cradle, which would cause the FRPP cover to interfere with the cradle unless the cover is machined to provide clearance.
  • Includes load bolts to support the bearing caps.
  • Offers the convenience of ports for draining, filling, and sensors.
  • Includes provision for oil cooler lines.
  • Unlike some aftermarket covers, includes OEM-quality internal oil baffle at the vent.


  • Direct replacement FRPP design fits like an OE part should.
  • Thick, high-strength aluminum casting provides far greater strength than the breakage-prone stock cover.
  • Precision-machined recesses for clearance to IRS cradle when installed along with MM aluminum differential mounts.
  • Load bolts
  • 10 attachment bolts and washers
  • Machined groove on sealing surface