AIM and chassis tech are the same brand. they are the only ones that make them for 86-93 mazda's. I had a set on my truck a long time ago. I didn't like them because they pushed the wheels out.
i've got aim spindles on my mazda my wheels are 18x7 with +35 i think tho... the spindles work great for me. don't know if thats any help, but it's all i have to offer.