tomkay

I have been converting my 2008 to an 8-rib setup. All went well until I got to the alternator pulley. It has a clutch pulley and the new 8 rib pulley does not , is there a 8-rib clutch pulley available? I had read it was not ok to replace the clutch pulley w/ a standard pulley, but I don't know if that is true. thanks for any help.

908ssp

Yes there is. PM me I might be able to get you one. I found one for my 2010 which uses a Denso alternator not a Motorcraft. But I have buddy in the alternator business so after the holiday I can find out. The clutch pully is a good idea it can save you gas and even save you bit of HP.

danzcool

and that there is the reason why you would want it, however it's not necessary.

tomkay

Can't PM yet, I guess I'm to new to forum?

one.wicked.stang

What pulley is needed for this? I too need this info, thanks.

The gp720 isnt the same as whats on car now, mine has the 33 spline.

908ssp

I have 8 ribbed clutch pulleys for the Motorcraft alternator now.

turbo 2.8

what....the alternator has a clutch pulley? why? I know my a/c compressor has one, but the alternator?

tomkay

Yes the alternator has a one way clutch to help keep the belt from slipping/jumping when you close the throttle quickly. It allows the alternator's centrifical force to free spool. 908ssp helped me out and it fit perfect. Would recommend to anyone looking for 8 rib clutch pulley.

turbo 2.8

yeah I asked my buddy(who has a gt) if he had one. I understand the thinking, not sure if it necessary. seems like just another thing to go wrong vs the minimal upside. I.m.o.