I knocked out the mech fan pulley shaft and used a shorter 2045mm belt. I had to grind part of the alt bracket and part of the TDC "pointer". I only have a 1/4 wrap on the alt, but it works. I have a ground switch that can manually activate the stock e-fan relay(pcm shielded by a diode in an additional relay in order to not get a cel) and the 2nd e-fan relay is 12v fired from a tap on 1st's fan power. If I forget to turn it on when it's warmed up, both will come on at the prescribed 217* temp or anytime the compressor is used. Fyrfytr has a good writeup on how to correctly wire a manual switch: http://www.naxja.org/forum/showthread.php?t=1025399&highlight=manually+switch+fan