Toyotaexo

What other mods does ur dads truck have

New to Cummings just sold my ford with the 6.0 that was giving me tons of problems and bought a 2006 3500 4x4 mega cab with the 5.9 6spdwould the stock clutch hold up to the power of the smarty jr?truck is mainly only used to tow a toyhauler weighing around 15k maxed out looking on what to get to help out the truck. Truck is stock now thx for any advise