Set 829085 has been designed for theJeep 3.0 lt V6 diesel enginefound in the late model (2011 on)Jeep Grand Cherokee. The 829085 provides all the cam andcrankshaft locking tools required for chainreplacement. Please carry out an up-to-date cross reference test for thespecific vehicle on our Website For the professional engine repair For locking the crankshaft or camshaft and injectionpump Very high degree of accuracy In foam inlay in a durable BMCS (Blow mould case storage)