M12 to M14 Crown Ring Bolt Adapter Sleeves

This adapter set allows you to fit M12 bolts into 14 mm crown ring bolt holes on differential carrier units. Ideal for enthusiasts performing gear ratio swaps using differentials with incompatible bolt/hole sizes, such as installing E32 or E31 3.91 gear sets into an E46 M3 LSD unit.

• Enables use of M12 bolts in 14 mm holes
• Perfect for BMW E46 M3 differential gear ratio swaps
• Commonly used when fitting gear sets from E32/E31 with M12 bolts to ///M differentials with 14 mm holes
• Material: [Specify material if provided]
• Includes: Adapter sleeves for complete crown ring bolt set (quantity as per product listing)

A must-have for anyone upgrading or modifying BMW differential gear ratios where bolt and hole sizes differ.