Do you need the spacers because of width or do you need them because of transition from one wheel type to another?
If it is for width, sadly I don't think you are going to find them. And the reason why is that Toyota hubs and such are almost all identical, so the variation in diameter 1.5" from the rotor face is fractions of an inch and cannot be machined. On the rear of a SF axle, such as our trucks, a spidertrax type spacer would work I think, but on the front and on FF rears they won't.
I have a set of late 90's triple doubles off a 4runner on my 1990 pickup and they are hub centric and bolted right on, centered right up on the hub.
I have read about people using a couple acorn style nuts to get the wheel centered on the spacer and then installing the shouldered lugs to torque it down and then replacing the acorns with shoulders to finish it out.
There are several threads about spacers over in the 80 section, just advance search for wheel spacer in the 80 series forum and you will find more info then you want to sort thru.
Edit: to clarify, the hub centric wheel is centered by the hub itself and the lug nuts just hold them on, more or less. Lug centric is the acorn style lugs to center the wheel on the lug nuts themselves. A Toyota Solid axle front hub body is around 100-102 mm and tapers only a mm or 2 as it comes away from the rotor face meaning that at 1.5" away it is most likely only down to 97-98 mm. That means that the ring to center the wheels at that point would be 1-2 mm thick and that type of tolerance on a mass produced piece is near impossible, not to mention that it would probably get damaged in shipping. That is why you don't see a true hub centric spacer for early models.
The rear SF has only the raised center so a spacer can be made to fit over that and also contain the correct lip for the hub centric wheel.
