Quick Q: Grade 8.8 bolt enough for rear suspension bolt?

[Hellabad]

Hellabad - as i say my bolts are definately stamped 8.8. My rear shock absorbers are red which may not be factory, so perhaps someone changed my bolts somewhere along the line, but my car is dead stock and 2 older owners so it seems odd. I guess you have observed for yourself in doing installs that the bolts are stamped 10.9 on the head?

The OEM replacement bolt is marked 8.8, but we have an e30 here that looks stock, and the bolts are marked 10.9 on the head.

[Axxe]

For lower shock bolt I'd go with 10.9 as it is in less than ideal single shear loading.

[LJ851]

I am 100% certain my shock bolts are original on my 89 and they are 8.8. That being said i would not hesitate to use 10.9 but would not use a 12.9 in single shear as mentioned above.

[Gooch]

This is a great thread and I'm glad the question was asked. I bought grade 8.8 bolts that were 5mm longer than stock to use with my AKG tie downs.