BMW Differential crown ring spacer for low to high gear ratio – 188 k
BMW Differential crown ring spacer for low to high gear ratio – 188 k, RacingDiffs part no. RD3013. A RacingDiffs part for differential rebuilds, gear ratio swaps and LSD setup.
Key Features
- Precision engineering: CNC-machined tool steel for exact fit, hardness and long service life.
- Complete package: Includes spacer and 10 high-grade crown ring bolts for a hassle-free install.
- Zero machining: Corrects crown-ring position differences between low-ratio and high-ratio carriers.
- Proven use case: Ideal when sourcing desirable high-ratio LSD carriers from TDS models.
What's Included
- 1 × Precision-crafted spacer
- 10 × High-grade crown ring bolts
Technical Specs
| Spec | Value |
|---|---|
| Application | Swapping a low-ratio LSD carrier (≈2.64–3.07) into a high-ratio carrier housing (≈3.15–4.45). |
| Typical platforms | BMW E30 / E36 / E34 tds (188 mm medium case; confirm your carrier/housing before ordering). |
| Material | CNC-machined tool steel spacer + 10× high-grade crown ring bolts. |
| Install notes | Clean mating faces; seat spacer flat behind the ring gear. Use medium-strength threadlocker on crown ring bolts; torque in a star pattern to BMW spec. After assembly: set backlash to spec and verify contact pattern with marking compound. Re-check torque and backlash after first heat cycle/track session. |
Specifications
| Spec | Value |
|---|---|
| Brand | RacingDiffs |
| Part number | RD3013 |
| Version | 188 k |
| Weight | 0,9 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
BMW Differential crown ring spacer for low to high gear ratio – 188 k
208.12€
Excl. VAT: 172.00€
Tags: RS-RD-RD3013,