What I was told was that the 3.2 was for the domestic market(USA)..Don't know how true that is...Rising Sun does give a limited guarantee...I like my Troop..its a good running truck...at least up until two weeks ago,so I don't mind putting money into it,if it will last a few more years..my old engine had 172k on it before it ate a rod bearing.I'll let the forum know what the costs with shipping would be...I'll end up doing the swap myself,so I can save some $$$ there.......................................