TRANSFER CASE: REBUILD BEARING KIT with CHAIN * NP 271 / NP 273D * The bearing rebuild kit for the NP271 / NP273D comes complete with all the components you need to replace all the required bearings, seals and gaskets. While you are rebuilding your transfer case we always suggest replacing the chain as well. A chain failure could cause significant damage to your transfer case and should not be overlooked in the rebuild process. Recognizing this need we have packaged the complete bearing rebuild bearing kit and the BorgWarner transfer case chain (HV064) - Chain specifications: 1.50" Wide / 98 Pitches