GMT 800 & Older GM General Discussion 2006 & Older Trucks | General Discussion

underdrive pulley ?'s

Thread Tools
 
Search this Thread
 
Old Feb 7, 2007 | 07:47 PM
  #1  
regency's Avatar
Thread Starter
TECH Fanatic
iTrader: (15)
 
Joined: Nov 2005
Posts: 1,961
Likes: 3
From: Alexandria, LA
Default underdrive pulley ?'s

which kit !!!!!!
25% crank - 23% alt.
25% crank - overdrive alt.

and what belt/s to go with it
Reply
Old Feb 7, 2007 | 07:49 PM
  #2  
litreddevil's Avatar
Banned
iTrader: (4)
 
Joined: Oct 2003
Posts: 5,151
Likes: 1
From: From Houma La. Living n Ellisville Miss.
Default

I Don't Have An Alt Pulley
Reply
Old Feb 7, 2007 | 07:51 PM
  #3  
regency's Avatar
Thread Starter
TECH Fanatic
iTrader: (15)
 
Joined: Nov 2005
Posts: 1,961
Likes: 3
From: Alexandria, LA
Default

what does your voltage run at ???
Reply
Old Feb 8, 2007 | 12:42 AM
  #4  
xsports33's Avatar
TECH Regular
iTrader: (1)
 
Joined: Jan 2007
Posts: 400
Likes: 0
From: Maui
Default

I'd say if you have the electric fans go with the alternator overdrive pulley.
Reply
Old Feb 9, 2007 | 04:49 PM
  #5  
regency's Avatar
Thread Starter
TECH Fanatic
iTrader: (15)
 
Joined: Nov 2005
Posts: 1,961
Likes: 3
From: Alexandria, LA
Default

so which alt. pulley is needed!!! i have heard both
Reply
Old Feb 9, 2007 | 10:58 PM
  #6  
alanderson1978's Avatar
TECH Apprentice
iTrader: (1)
 
Joined: Nov 2006
Posts: 334
Likes: 0
From: Blytheville, AR
Default

The way I understand it, ASP makes 2 different sets. One is just a crank pulley that underdrives everything, the other is the same crank pulley but includes an overdrive pulley to bring the alternator back up near its regular speed. Both come with the appropriate belts and a new crank pulley bolt.

This is the way it looks at T Byrne's site
Reply
Old Feb 10, 2007 | 12:41 AM
  #7  
SnakeOiler's Avatar
TECH Addict
20 Year Member
Liked
iTrader: (6)
 
Joined: Aug 2004
Posts: 2,440
Likes: 17
From: F'burg, VA
Default

Underdrive crank pulley w/overdrive alt pulley will keep your voltage where it belongs. I don't remember what belt I have. ASP can tell you that, though.
Reply
Old Feb 10, 2007 | 02:18 AM
  #8  
regency's Avatar
Thread Starter
TECH Fanatic
iTrader: (15)
 
Joined: Nov 2005
Posts: 1,961
Likes: 3
From: Alexandria, LA
Default

thanks fellas
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Vortec350ss
Drag Racing
134
Jan 12, 2016 10:36 PM
Lthompson
FORCED INDUCTION
4
Oct 2, 2015 12:45 AM
old motorhead
FORCED INDUCTION
3
Sep 29, 2015 08:22 PM
murderedSS
FORCED INDUCTION
3
Sep 27, 2015 10:16 PM
Justin87gn
FORCED INDUCTION
9
Sep 10, 2015 12:06 PM




All times are GMT -5. The time now is 07:37 PM.