measurements
I don't know if that's going to be accurate enough to tell for sure. PTE lists the 69 trim at 2.42" on the exd side, but a p trim is only 2.542" and a t350 76trim is 2.437" that would appear the same as the 69 but the ind side is smaller. I would think it would be a lot more accurate to measure the wheel itself with a caliper. They're pretty cheap in the right places. What size is the turbo supposed to be?