Production numbers vary depending on who you ask, but its generally agreed upon that somewhere.Trekkers are even rarer than when they were new which is why we were so intrigued to find a pristine example listed for sale on Ebay.
Trekkers were originally sold and marketed as Winnebagos. The motor home company received partially built Toyota trucks and sub-contracted out construction of the fiberglass body before completing final assembly. After final assembly they were available for order to Toyota dealers.
I didn't find the right solution from the Internet.