western chasssis flip kit doesn't seem to fit truck (1 ton)

[tc4x4]

I got the 8 inch drop flip kit for my c35, but mocking parts up, the new under axle spring perches don't fit around my old spring perches. The circle part seems to wide for one and also the two arms going up hit the stock spring perches. Take a look at the pics, maybe I'm just not getting it but something seems off. Let me know what you think...