what size are leaf spring bolts?

[Swims350]

anyone know right off what size the thru bolt is for the spring eyes?

front or rear tp or bottom of the shackle etc.

I know lmc has them fr fairly cheap but wondered what size they are in case I need to get some locally.

 

[bucket]

The front springs use different sizes, and it changed in the later years. Bolts for the rear springs are all the same size, 9/16 IIRC.