3g alternator pulley

[RapidRabbit]

Can I change the alternator pulley on a 3g with the smaller pulley from my stock 5.0 alternator?

I was routing the belt and it is too tight with the larger pulley. is there any problems with this?

 

[AzPete]

You may turn the 3G to fast and throw the insides apart. Buy a belt.

 

[RapidRabbit]

Thanks Pete.

That's what I was thinking. It turns out I did have the belt routed wrong before when I thought it was too long. Now its an inch too short because of the larger pulley on the 3g. :shrug


I will go see if I can find a longer belt I guess.

 

[66gt350]

I'm running the alt pulley on my 3g alternator, that was originally on the 2g alternator from the donor mustang. Never had a problem, and I've spun the engine pretty hard a time or two.

 

[RapidRabbit]

Re: 3g alternator pulley

Do you have any pics of the belt routing? I am getting two different versions when I look online. And any idea what size belt? I have a 73 inch now.

Sent from my Desire HD using Tapatalk

 

[AzPete]

The belt can route different ways depending on the items and the belt tension. I have actually switched the routing on one car and both worked.

 

[66gt350]

I don't know if my belt routing will help ya out much. I'm running a set of march brackets. I have an alt on one side and where the ps goes is an idler pulley. This is what mine looks like this (except for the aluminum pulleys, I'm running a set of BBK steel pulleys): this image is from the marchperformance website.