As many of you know I'm working on some ecotec crank and alternator pulleys....and I have a question.

Those of you running a 6 rib crank pulley with a 5 rib belt. Are any of you having belt wearing issues. The center-lines of the 5 rib and 6 rib crank pulleys are a little offset of each other.... but the groves on the alternator pulleys seem to line up fine. Also besides the BORROWED 6 rib crank pulley, I looking for another 6 rib alternator pulley I could buy or barrow for a while. Also Eric or is it Todd you crank pulley will be sent back to you soon. I am almost done with it.
I always get you to confused for some reason.




PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO

crank pulley is me , i changed my names around now

ive got a 6 rib alt pulley , its a aftermerket pulley it was for a truck , but i had it on my cav for a while its larger than stock

the 6rib pulley on the cobalt ss/sc , and ion redline alt's are a 1 way roller clutch pulley , i was gonna send it to you , but getting it off the alt would prob destroy it


i havent seen any sign of any problems on the g/fs cav yet , ill be switching to 6rib once you get the pullies done