Need part number for a new alternator....

[matt 2k12]

Hey yall,

SO I am continuing to diagnose my battery dying issue and I decided to swap alternators. But I bought the wrong one even though it said it was a direct replacement. It did look a little bigger but I know the housing doesnt have much to do with it. HOWEVER - when I installed the new (bigger) alternator it did not allow my belt tensioner to return back to its normal position. Its pretty much all the way cranked over now. I thought that would be OK so I drove the truck for a test drive and low and behold it would not charge the battery and was actually dying while driving down the street.

So obviously I bought the wrong alternator or something. I told the guy to get me Part No. AL8785X which advance auto .com said was a direct fit. I believe this is erroneous information.

Could someone please point me to the correct part number or part numbers for some working alternators? Since my lights dim from my stereo system and I plan on adding some auxillary lights should I go for a 145A alternator?

BTW I drive a 2wd VHO LQ9.

TIA,

Matt

 

[BLNAWAY]

Here's some info has the 145 amp # but not the 105

 

http://www.silveradoss.com/forums/topic/60169-gm-alternator-15845338/?hl=alternator

 

Hope it helps

[kelleyperformance]

if your trucks an 04' VHO, i doubt it had a 105... it prob had a 145 in it. there is a 165 amp in the escalade, loaded tahoes, etc... but the charge module connector is different. but, no matter which one you have- if the belt goes on, and turns the alternator (tight or not), the charge/battery cable is connected to charge post in rear, and the 3 pin connector is in the top/side but no charge- somethings wrong with that alternator.

Edited December 15, 2013 by kelleyperformance (see edit history)