Alterkation oil pan

Yes I had the 36 on here myself and it fit. I like 31590 best, it does require a tiny nip off the power rack mount, but it's a simple thing.
I don't know if you looked over the link I posted above or remember me calling you when I ran into this problem? That was the only issue I had with the RMS install. The TTI 340 step tube headers went in like a dream.