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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

Crank Pulleys. Size?

  • Thread starter Thread starter lancec2c30
  • Start date Start date Nov 3, 2009

lancec2c30

Member
May 14, 2008
570
0
16
Washington
Nov 3, 2009
#1
  • Nov 3, 2009
  • #1
I had to replace my stock crank pulley because of the holes being ob-longed.



Chris sent me another one for free. , But as you can see here it is quite a bit smaller then what came off.

Now Is it okay to run an "under drive" pulley like this without replacing any of the other accessory pulleys?
 

87GT Drop Top

Member
May 1, 2009
500
3
17
South Florida
Nov 4, 2009
#2
  • Nov 4, 2009
  • #2
Yes it's fine. Ypu are better off leaving the other pulleys stock or even getting smaller ones to compensate for the smaller crank pulley slowing everything down. I ran into cooling and charging issues with the smaller crank pulley. Even with the 6G upgrade I was still not charging 14V. I got sick of messing around with it and put my stock crank pulley back on.
 

faststang90

10 Year Member
Nov 5, 2007
522
16
49
baytown texas
Nov 4, 2009
#3
  • Nov 4, 2009
  • #3
i have ran that size on a street car no problems.
 
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