I bought the Hell Creek in Jan of this year for my 67. I finally finished getting everything on a month or so ago. I also had bad shackle angles. I called Tom to tell him and Tom told me that in June they added 3/4 on an inch to the springs front and rear and thats about what I'm lacking. Tom was a great guy and is a pleasure to deal with. I'm not in a bind as I've been building this 67 for most of the of the year. I just received the replacement springs from Tom last week and am in the process of swapping them out. I'll take some pics so you can see the difference. I apologize for hacking in on your thread I just wanted to let the folks know if they received the first phase springs and they had these shackle issues to give Tom a call he's a great guy but he can't make good on it unless he knows about it.