TKR6597 – Diff Coupler (f/r, lightened, hardened steel, EB410) Vehicle Compatibility • TKR6597 - Diff Coupler (f/r, lightened, hardened steel, EB410) is included with the EB410, EB410.2 and ET410 kits and can be used as a replacement part for those vehicles. • This can be used with the SCT410SL vehicle and should be a direct replacement for the stock part or used as a feature. Please use the instruction manual for the kit(s) listed to verify compatibility and no additional items are necessary before purchasing.Click the links above to view other parts.