Actually, the LF3947 IS a Stratapore-it just has a smooth can instead of the LF16035's fluted can-but that can has flutes! I'm smelling a potential counterfeit filter here, I would talk to Fleetguard about it. Where did you get it?
I ran the 3947 and 16035 on the Cummins Filtration website. They said this about the 16035: •Stratapore version of LF3972. This filter is similar to LF3894 except it has a fluted shell for 03MY Dodge Ram application.
According to their pictures the 16035 has 8 holes and the 3947 has 6 holes.
Now I have a 16035 sitting in shrink wrap in my basement and will have to have a look and see if it is fluted and what hole count she has. I bought from a local Fleetguard supplier.