I looked at the skid
on their website and it says this in the description. Maybe they edited it after your issues came up?
"The skid may need longer bolts in the front to fit V8 models and will not line up with the oil filter or drain on V8s."
I think it's strange that the 4th Gen skid page has pics of a 5th Gen. Confusing, thought I had clicked the wrong link.