Need lots more info here -
we are primarily covering kj/kk models.
that being said :
3.7 is 3.7 no matter the body code BUT you can get in TROUBLE quickly.
the biggest thing is the model year of the donor as compared with the recipient.
There were big changes internally around 2004. Regarding a reluctor on the crank to send signals to the engine control unit (ecu).
In other words, you can’t EASILY swap on 02/03 into an 05 and up.
your best bet is to check with your auto parts yard. They can look up on interchange the differences.