Evo VII – IX Billet Transfer Case Housing



We were commissioned to engineer, design, and construct a replacement transfer case housing for Mitsubishi Evolution’s to stop the transfer case breakage associated with the rigors of drag racing.  Engineered to be 450 percent stronger than the OEM Transfer case housing by carefully incorporating stronger ribbing features larger radii and enlarged wall thickness into the original housing. Material is 7075 aluminum, the same as our bulletproof DSM EVO 1-3 housings.  All internal oiling passages are reused resulting in superior oil transfer throughout the contacting gear teeth.  Available options are Standard or With ACD.  Available to be purchased with or without billet crown wheel and pinion.



  • Billet 7075 Aluminum
  • FEA engineering studies to strengthen the entire part by 450 percent
  • Available for Standard and ACD
  • Available Billet Crown and Pinion wheel

Part #

  • MMCDRV9020 – STANDARD : Bottom Housing MMCDRV9020-01 and Top housing MMCDRV9020-02
  • MMCDRV9021  – With ACD : Bottom Housing MMCDRV9020-01 and Top housing MMCDRV9020-03

Additional information

Weight 16 lbs
Dimensions 16 × 16 × 16 in
Evo VII-IX Billet Transfer Case Housing

Standard, ACD

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