anyone know about this michigan monster truck?

[CUCVonROCKS]

I remember seeing it around Halloween years and years ago,
It was parked up front at heavy equipment rental lot right off the highway in Whitmore Lake Michigan spreading the word about a haunted house I believe.

I remember it being like a 80s era box body truck, old dodge I wanna say?
It had a black body wrap and said "Rigomortus" on the side in orange letters.

I went to the haunted house and rode in the back of it.

Anyone know anything about it?