[rowdy11]

I am using a cutout template for my firewall, not my actual cab, but notice even with that I'm going to have the same clearance issue with my K10. I checked the underside and don't have a ton of room to slide forward further without hitting my oil pan against the DD cross member (and I have the truck pan).
Pilot did you say you flipped sides on the mounts and it helped? Was that the engine mounts or the clamshells/crossmember section that you flipped?