front spring eye bolts

[72beater]

I am putting on a lift, and noticed that I cannot get the front left forward bolt off the truck. I'll cut it off tomorrow, but is there anything special about those bolts? They look like grade 8, 5.5 inch long, 9/16 barrel fine threads. Am I missing anything like they are super special heat treated or annealed or anything like that? Thanks for the help. A loss of that bolt would be muy mal I think.
Ernest

 

[Don]

Grade 8's ought to do the trick, Caterpillar has them if You can't find them elsewhere. /forums/images/graemlins/eek.gif

 

[Nikk]

I dont know about fine thread but 9/16th 5.5" long grade 8 is what I got from my local frame and axle shop.

 

[POFF]

The stock ones are fine thread and have a steel locknut