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Suspension Hardware

Posted October 8, 20186 yr

comment_559142

Hello out there...

I am re-installing my front suspension after a long floor pan (and lots of other rusted metal) replacement. Should I use STAINLESS nuts, bots, washers for any and all areas where needed...? I love stainless, but not sure if Grade 8 would be a requirement for suspension components. Any comments would be appreciated.

Thanks...Ryals

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October 8, 20186 yr

comment_559156

You definitely shouldn't be replacing grade 8 with SS and yes there are grade 8 bolts in the suspension system. SS although quite hard is not very strong, it looks pretty but it reacts with other metals just as easily as zinc covered bolts.

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October 9, 20186 yr

comment_559211

The suspension bolts are mostly JIS grade 9, which is equivalent to SAE grade 12.

Leave the pretty stainless to where you can see it under the hood holding on the fenders, valve cover or rad or something, or in the interior.

1

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https://www.classiczcars.com/forums/topic/60892-suspension-hardware/

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Replies 2
Views 1.2k
Created 6 yr6 yr
Last Reply 6 yr6 yr

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zKars 1 post
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zKars

October 9, 20186 yr

The suspension bolts are mostly JIS grade 9, which is equivalent to SAE grade 12. Leave the pretty stainless to where you can see it under the hood holding on the fenders, valve cover or rad or s

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