Alternator Relocation to avoid frame rail

Johnny Mac said
Different OD. Underdriver/overdrive ratios. We use a 5.7 vvt damper on a 6.4 daily. Bolts right on. Different size OD

Could be, but the offerings from ATI show the same ratios for the 09-10 5.7 and the 11+ 5.7 and 6.4. The 18% overdrive even uses the same shell with a different hub. If the 09-10 5.7 had the same offset, why offer a different part?

Funny that you are using a 5.7 dampener on a 6.4. I was planning to go the other way since I have to swap the front of my motor since it from a truck. :)

Johnny Mac said
Those bolt to the head. Maybe non vvt heads stick out more than vvt heads, or vice versa.

If so, the Eagle head swap would cause problems for the PS pump. And Holley PS swap kits use different thickness plates for the different offsets. If the cylinder head made the difference, they probably wouldn’t need too change the plate thickness.

Johnny Mac said
Probably just needs a few spacers to eat the belt spacing up. One of Our front pulley suppliers offer a single kit for both, with spacers for vvt.

I wondered the same thing so I read the install directions. Nothing to say use xxxx spacers with an ‘08 down 5.7 and xxxx with an 09-10 5.7.

Johnny Mac said
Chrysler never made anything easy. That's for sure.

Nope! If it was easy, everyone would do it. :D