My official GM 2005 E Fan post(large pics)
 

Here it is;
Some After market Cold Air Kit boxes may not Clear the Fan shroud, I only can verify the new style Volant and UPD will clear.
Just some info and part #'s for you guys. Perform at your own risk.
2003 SIERRA ELECTRIC FAN UPGRADE
145 AMP ALT P#10464476- Off A 2003 Sierra Denali (**Reman- Delco**)
LONGER BELT P#12576451 for use w/stock pulleys
If using ASP CRANK PULLEY-gates K060900
6.0L RADIATOR P#DRRA20060 from the barn
If you order from the barn No Ac means no engine oil cooler(driver side)
A/C means you get the oil cooler.
Also it didn't come with a peacock drain. No biggie.
Don't forget to trim the Rubber flaps on either side of the radiator.
http://memimage.cardomain.net/member...62_28_full.jpg
2005 FANS
2-CONNECTORS P#88987983(might get them cheaper somewhere else)
Allen Is now offering them with his harness!!! Awesome.
1-SHROUD P#89023365
***includes rubber bushings and warning label and motor clips***
1-BLADE KIT P#89023366
1-BLADE KIT P#89023367
2-MOTOR KIT P#89023368 includes two more clips,
***doesn't come with screws to attach to shroud***
6-SCREWS FOR MOTORS(14 TAP X 1”L) gm screws are hard to get
(The part # for the GM screws are
M6.3 X 1.69 X 25MM(L) P#89024887 )
The (#14) screws worked fine and dug into the plastic nice and tight.
2-RAD HOSE CLIPS P#15159494 might already have from stock shroud
2-BOLTS W/WASHERS(8x1.25 x 45mmL)FOR SECURING FAN TO RADIATOR SUPPORT
http://memimage.cardomain.net/member...62_38_full.jpg
http://memimage.cardomain.net/member...62_45_full.jpg
http://memimage.cardomain.net/member...62_46_full.jpg
http://memimage.cardomain.net/member...62_47_full.jpg
NELSON FAN HARNESS- very nice worry free item.
www.nelsonperformance.com
pcm trigger= both fans low
a/c trigger= one fan on high.
pcm trigger with a/c= both high
ROCKER SWICTH, (optional) I have it hooked into the pcm lead to manually activate as well.
http://memimage.cardomain.net/member...62_37_full.jpg

More pics on my cardomain.
Total cost almost $820 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Holy Chit
Thats a nice cam/springs and retainers with gaskets.

It all came out nice though and there's more benifits I think with upgrading to the bigger radiator and alternator. I don't regret it.


Just my .2
:cheers:

Thanks for the write-up, pictures, and especially the part #'s.

We appreciate it! :cheers:

very nice, 900 is bad considering everything you got

You mean not bad right? ;)

I included NYS Sales tax as well,
Right around $820 to be exact.

[QUOTE=creederado]Here it is;
pcm trigger both fans low
a/c trigger both fans high
pcm trigger with a/c both high
ROCKER SWICTH optional I have it hooked into the pcm lead to manually activate as well.[QUOTE]

a/c trigger both fans high?. Mine triggers one fan high, which drives me nuts by the way. The A/C cycles a lot! Thinking of tying a thermostat to the AC coil somehow so that it only comes on when coil is hot.

Nice shot of the manual switch, I was gonna put it in the same place.

Do you see a voltage drop when the fans come on high with the big alternator?

Why a larger belt?

I"ll be installing mine in a couple of weeks. $212 fully assembled brand new fans,$49 for 6.0 radiator off ebay,Nelson harnes WITH correct connectors $89. Total:$350

900 is steep but looks really profesional and you will get better gas mileage. So it will pay off in the end.

You will need an alternator. I did the swap without one, and am ordering mine tomorrow. You will be ok when only one fan is on, or both fans are on low, but when the both kick on high your voltage will drop down to around 12v.

will that SHROUD fit the 5.3 rad???