We used to run the isuzu 7.5 tonners from brand new plus 3 to 5 year maintainance deal so basically everything was done by them , im talking about the isuzu TQR think they called or 7QR summit like that, they carry extra load due to its small basic cab being lighter, they are only my first choice for work like ours, wouldnt like to think was driving all day everyday to everywhere as they not good comfy long distance type motors