Subaru R180 Rear Differential Block Disc Set
Subaru R180 Rear Differential Block Disc Set, RacingDiffs part no. RD6012. Block discs replace the clutch pack and lock the differential to 100 %, like a welded diff; removing the discs returns the original LSD function.
What's Included
- Block Disc Set: for Subaru R180 rear differential (replaces OEM clutch plates).
- Installation guide (best practices & setup notes).
Technical Specs
| Spec | Value |
|---|---|
| Diff type | Subaru R180 rear differential (WRX STI; DCCD center system unaffected). |
| Function | Replaces clutch packs to force permanent lock (100% coupling) at the rear axle. |
| Setup notes | Inspect carrier bearings & races; set preload/backlash per OEM spec after reassembly; verify gear contact pattern. |
| Fluids | Use a high-quality gear oil appropriate for locked differentials; change after initial heat cycle. |
| Road use | Intended for motorsport / off-highway use; low-speed tire scrub and increased NVH are normal with 100% lock. |
Installation Notes
- Torque ring-gear bolts in a star pattern with medium threadlocker.
- After first session: recheck fastener torque and backlash.
Fitment
Subaru WRX STI models equipped with the R180 rear differential (various years/markets). If unsure, send us your VIN and we’ll confirm compatibility.
Specifications
| Spec | Value |
|---|---|
| Brand | RacingDiffs |
| Part number | RD6012 |
| Weight | 0,7 kg |
RacingDiffs
Founded in Belgium, RacingDiffs is a specialist developer of limited slip differential conversions and upgrades for popular rear-wheel-drive platforms. Their bolt-in LSD kits convert open differentials into performance units without a full housing swap — a cost-effective solution for track day and drift enthusiasts seeking better traction and balance.
Official page: racingdiffs.com
Official page: racingdiffs.com
Subaru R180 Rear Differential Block Disc Set
216.59€
Excl. VAT: 179.00€
Tags: RS-RD-RD6012,