need bolt sizes! quick

[bigbadchev84]

i need to know what the bolt lengths and sizes are on the back shackle of the front spring, are they the same on the top and bottom of the shackle? also need to know the size and length of the rear spring hanger bolts thanks!!

 

[randy88k5]

I believe the bolts are 9/16"x4.5"
Not absolutely sure though, hope someone else can confirm

 

[JIMs70K25]

rear of front spring and frame 7/16"x5" (the front bolt is 9/16")

rear springs 9/16"x5" at least what I used on my 70s.