Thread: DIY: How to raise your factory seat to improve visibility
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Old 05-22-2012, 10:40 PM   #28 (permalink)
kenchan
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Originally Posted by nobrakez View Post
Im a little late to the party, but just FYI "8.8" bolts ARE NOT as strong as grade 8. More like grade 5. If it were me, I would replace those with grade 8 bolts. As far as grade 8 bolts shearing, all I can say is that is what was recomended for mounting the corbeaus in my 240z and spacers were also involved. Of course this is still at your own risk.
yep, class 8.8 is about SAE Grade5, but that's plenty strong for this application imho. that is why i posted Grade5 in the DIY since most folks are more familiar with SAE J429. (or maybe ASTM? then A449). Grade8 would be a class 10.9 which is for heavy duty work.
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