Alternator Pulley Swap

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Author Message   Brent Fox (Bfox) Member Username: Bfox Post Number: 88 Registered: 10-2002 Posted on Saturday, July 19, 2003 - 01:34 pm:    I've done a search but I've come up with very little helpful information. I have a 95 disco with the 3.9L. I also have a brand new alternator for a 96-99. The 96 has a smaller pulley. Can I put the larger pulley from my 95 alt on the 96 alt and run it without any problems?   M. K. Watson (Lrover94) Senior Member Username: Lrover94 Post Number: 945 Registered: 02-2002 Posted on Saturday, July 19, 2003 - 03:58 pm:    i can't be sure on this issue, but i believe the altenator speed determines power output, so changing the pulley mey change the idle power, maybe it would be easier to change the belt size. mike w   Chris Browne (Chris_browne) Member Username: Chris_browne Post Number: 229 Registered: 02-2003 Posted on Saturday, July 19, 2003 - 07:44 pm:    Swap the pulleys over and you'll be fine.   Brent Fox (Bfox) Member Username: Bfox Post Number: 89 Registered: 10-2002 Posted on Sunday, July 20, 2003 - 10:30 am:    Thanks Chris