Subaru OEM R180 Rear Differential (G/R 3.900) 04-18 STI | 27011AB320 FocusRS_2016-2020 Transmittance > 90%

Transmittance > 90%

Thumb horn buttons

Hand crafted heliarc welds for stronger enforcement along aluminum connections

Solid hub design for direct power transfer

Subaru OEM R180 Rear Differential (G/R 3.900) 04-18 STI | 27011AB320 FocusRS_2016-2020 Transmittance > 90%Product Fitment: 2004 2018 Subaru STI If you're hearing gear whine, clunking, or bearing noise from your rear differential, it may be necessary to replace it. 27011AB320 Differential Assembly Rear is Part Code 27011 in the diagram Warranty Disclaimer: Subaru of America will only warranty parts installed by a CERTIFIED Subaru Dealership. The part being installed must also match the vehicle VIN. IE If you install an STi block in a WRX at your friends