03 dbw harness to dbc

[cjcalhoun]

thanks if im going to run a fast or ls6 intake which harness should i get

[cjcalhoun]

ok im an idiot i looked at an 03 gmc with dbw and your right it is easy are 03 and up harneses the same

[Frenchy]

03+ are basically the same, 05 and 06 are wired for electric fans too where as 03/04 are not

[cjcalhoun]

ok so if i want electric fans how hard is it to convert 03/04 harness to elctric fans or would it be beter to use an 05/06 harness on my truck

[Frenchy]

I'd go rite to 05/06, you can buy a custom harness that plugs into the 03/04 and workls exactly like factory.

[cjcalhoun]

where can i buy the harness and best fans to use not a lot of pick and pulls around here

[cjcalhoun]

ok i know the 99-02 harnes wont work on an 03and up but will the 99-02 motor mounts ac lines hoses sensors basicaly everything but the harness work on 03 up found a deal on 99 and if everything will work all i would need is a harness

[Frenchy]

yes

[cjcalhoun]

ok thanks also im going to use the 99 motor frame mounts ect. would all that i would need to change is the throtle body to a dbc and use everything else with the newer harness i bet you,ve heard these questions a million times thanks for everything

[Frenchy]

yep the only parts you need specifically for the 03-07 classic is the harness and DBW setup, you can use the older return style fuel system or do what I'm doing and just going with a corvette filter and a -6 line to the rail.