PST Rear Leaf Spring Bushing Shackle Kit Measurment

[PaveFE]

Has anyone purchased this kit B-body from PST? What is the measurement from (center) bolt hole to bolt hole. I called PST but they were unable to answer my question.

Anyone have another kit they've used? measurements?

I have a non-hd spring 1970 RR

thanks

 

[AR67GTX]

Based on recommendations from a Forum member I purchased shackles with bushings from:
http://www.billrolikenterprises.com/proddetail.asp?prod=3491296-P

They were original style in appearance. I did use PST poly bushings with them.