You may have to find the old Mopar Perf Magnum 10.5 flywheel as mentioned before.You must use a counterweighted flywheel balanced for 5.9L Magnum only.Possibly a bellhousing can be modified to use the large Magnum flywheel and the 833.Only other option is to use the 10.5 regular stuff and rebalance the entire assembly using a counterweighted 360 wheel.