If your truck is a V8 03+ it might work. Mine is a V6 '03 so it didnt work with the V8 interior harness. But since im swaping the engine then it will.

 

O.K. Now I get it. Your truck had a different harness because it was a V6. Yes, My truck has a 4.8

 

Thats right. Im done with the V6 to V8 swap and all the power stuff works now

 

So you guys are telling me the V6 and V8 interior harnesses are different? Or are they part of the engine harness as well? Mines an '02... what do I need to swap in power windows?

 

Help!!! The V8 Is In And All The Wiring/computer/bcm. The Engine/starter Turns And Fuel Goes In But The Security Light Is On And Wont Let It Start. What Do I Do???

 

I just did a v8 swap and it had NOTHING to do with interior wire harness.
2003 Silverado 1500 4.3 power lock manual window truck.


This info only applies to (03-06) (99-02 is plug and play from what I can tell.).I have done some junkyard research on factory power window swap, so far I have found out that the interior fuse box is different (inside driver dash) and the bcm will need to be flashed. So far I have acquired, both front door harness,both door panels with switches, power regulators/motors and the fuse box. I was told by a GM tech that everything has to be installed to be flashed because they also program the master window switch. Gm actually calls the switch a ddm (driver door module). I am currently using after market switches and my stock roll up door panels which drives me nuts. I will post more info once I get the flash done.

 

so then what does it take to do the conversion on a v8 02 ?

 

From what I understand 99-02 door harness,door panels,door switches,window regulators/W-motor(99-06).You may need to run a wire from inner fuse block to battery.You will notice a 20 amp power window fuse on the fuse block yours will not have it.

 

so there should be plugs under the dash that the door harness plugs into?

 

Hi, new to this forum. actually 1st time being part of a forum. I am trying to install the power windows on to my son's 2003 silverado v8. It was damaged by a tornado around Christmas week. I have installed the complete door from a 2005 silverado extended cab v8. Took it to the dealership and paid 98.00. Then was told that i need it the newer PDM and DDM from a newer truck. So i bought them But after reading up on them think that is not going to make all the power locks, mirrors and windows work. Any help or Advice??