TKR6551 – Diff Pinion (16t, use with TKR6512) Vehicle Compatibility • TKR6551 - Diff Pinion (16t, use with TKR6512) is included with the EB410 kit and can be used as a replacement part for that vehicle. • This item is not directly compatible with other vehicles as it could have different geometry or require additional parts. Please use the instruction manual from the kit(s) listed above to verify can work with your vehicle before purchasing.Click the link above to view other parts.