Leaf Spring Front Pivot Bolt

[mopowers]

Did any stock A-body come with 5/8" front leaf spring mount pivot bolts? I'm trying to look up a torque spec, but am unsure which applications came with 5/8" bolts.

 

[72bluNblu]

Did any stock A-body come with 5/8" front leaf spring mount pivot bolts? I'm trying to look up a torque spec, but am unsure which applications came with 5/8" bolts.

All the stock A-bodies had 1/2" front eye bolts, 5/8" is aftermarket. If you're looking for a factory spec for the 5/8" spring eye bolt you'd need to look at B/E body specs. The spec for the cars with 5/8" bolts is 125 ft/lbs, the spec for the 1/2" bolts is 85 ft/lbs. But that's for factory bolts. The shackle nut spec is different too, A-body is 30 ft/lbs, everything else is 40 ft/lbs because the shackle bolts have a larger diameter on the other body styles as well.

 

[mopowers]

All the stock A-bodies had 1/2" front eye bolts, 5/8" is aftermarket. If you're looking for a factory spec for the 5/8" spring eye bolt you'd need to look at B/E body specs. The spec for the cars with 5/8" bolts is 125 ft/lbs, the spec for the 1/2" bolts is 85 ft/lbs. But that's for factory bolts. The shackle nut spec is different too, A-body is 30 ft/lbs, everything else is 40 ft/lbs because the shackle bolts have a larger diameter on the other body styles as well.

Good info. Thanks! Just curious- Do B/E bodies use 5/8" fine or course thread pitch?