SavedByGrace
Member
Howdy all - ive read the thread here (https://www.ramforum.com/threads/03-to-05-pcm-swap.103201/ )
I have a 2003 2500 HD 5.7 and want to go ahead with the swap. Been considering selling it, but its our desert truck, ive since re-ringed the motor 5k miles back, swapped the TC, CAT, coils, new tires, suspension - everything works it just drives like a **** when im towing light stuff, wd hurt to see her go - so considering working with what I have for now.
I know I need a black key / non skim ECU from an 05, what connector from the 05 do I need as well? Or is it just a matter of swapping the 03 TCM wires into the C4 socket? Can someone just drop a bullet list perhaps to get me started? I have a hard time remembering stuff correctly from a mountain bike head injury few years back so excuse if i see a bit nubile here, it just really helps me cover things in point form. Planning on 4.1 or even 4.56 gears down the road.
Thanks!
Im tossing between a 4.1 or 4.56 gear swap, and possibly a stroker crank...
I have a 2003 2500 HD 5.7 and want to go ahead with the swap. Been considering selling it, but its our desert truck, ive since re-ringed the motor 5k miles back, swapped the TC, CAT, coils, new tires, suspension - everything works it just drives like a **** when im towing light stuff, wd hurt to see her go - so considering working with what I have for now.
I know I need a black key / non skim ECU from an 05, what connector from the 05 do I need as well? Or is it just a matter of swapping the 03 TCM wires into the C4 socket? Can someone just drop a bullet list perhaps to get me started? I have a hard time remembering stuff correctly from a mountain bike head injury few years back so excuse if i see a bit nubile here, it just really helps me cover things in point form. Planning on 4.1 or even 4.56 gears down the road.
Thanks!
Im tossing between a 4.1 or 4.56 gear swap, and possibly a stroker crank...
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