05-06 GTO LS2 Which Alt Will Work?
Its a 05 GTO LS2 engine with the same accessories. The LS2 has a clutch integrated into the pulley and as a result of the design, the snout of the alternator pulley sticks out twice as far as other alternators.
I cant find a standard pulley that will fit this alternator so here are the questions I need help answering.
1. Does anyone make a standard pulley to fit this alternator?
2. If the definitive answer to 1. is no then is there another alternator that will work i.e. bolt in, work, in this application so that i dont have to swap out the accessory brakets?
Money is tight these days for me so please respond if you have answers to the above or any other economical solutions along the lines of my questions.
Thanks,
Matt
Also not certain what the implications are if I ditch the clutch style pulley if it is possible. Im assuming accelerated wear and or more vibration but dont know for certain..
http://www.thunderracing.com/shop-by...drive-Pulleys/
Anybody? Sloan? Bueller? Bueller?
Last edited by 2Aspire; May 9, 2011 at 12:33 PM.
I'm trying alternator refurb shops today but still nothing concrete..
Anyone have any other ideas?
Does the PCM for the 01 LS1 Camaro control the alternator? If so I could probably get a plug and use that...
I'm assuming you used the GTO bracketry that puts the alternator on the low driver side?
Here is a picture of the clutch driven alt.. Notice the additional length the clutch pulley adds..

Matt
http://www.nookandtranny.com/mm5/mer...ry_Code=FD-LSX
The F-body alternator has 1 wire that is controlled by the PCM. It uses 1 wire of a 4 pin connector.
I found a pulley from an 05 6.0 liter truck application that worked.
Had some issues finding it as its not like many others as the bearing surface is recessed in on the GTO Alt case but this pulley fit it perfectly.
Anyone want to post a link to Aerosmiths back in the saddle again?
Ahh what the heck.. I'll do it..

http://www.youtube.com/watch?v=PgUh6BNdq9Y
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And just to update.. My Alternator bearing took a dump.. It might have been that the GTO alternator accounts for the extra weight and is balanced with the original clutch style pulley. I dont know this for certain but It worked fine (other than the clearence issue) without any noise until about a week after I swapped the pulley.
Might want to keep that in mind..
In short, I swithced it over to a Chevy 3500 series 6.0 truck alternator, the 105 amp one.
This might be the one I took it the pulley from but I cant tell now that I have it installed.. I looked just now with a flashlight and I cant see it well enough to know for sure.
http://www.autozone.com/autozone/par...6_191410_4443_
This one mounted perfectly but I had to switch plugs as the new one uses a 4 pin plug rather than the GTO that uses a 2 pin. (Just a note..Only 2 pins are utilized in the 4 pin plug). I got the new plug, pins and rubber seals from Howell Fuel Injection.
Last edited by 2Aspire; May 27, 2011 at 02:53 PM.


