kasturbo

Broke a lower shock bolt. Guess I'll be upgrading to the Racers Edge adapters.

tifosiman

Do you need the stock bolt to get you by until you get the replacement ones? I have one if you need it...........

Jeremy

SamGrant951

oh my lord!

thats the bomb yO!

pete944

I'm suprised that the car dropped that much without the shock. You would think the spring (torsion bar) would hold the rear end up more than that.

89magic98

Is that a stock (OEM) shock bolt?

tifosiman

Kevin removed his torsion bars.

KLR

Did that happen while you were driving the car? Yikes.

A few years ago, the left front suspension on a NYC taxi did something similar at about 25 miles an hour right next to me while I was walking on the sidewalk on 6th Avenue. It was a hell of a noise... it scared the crap out of me!

pete944

That explains it!

kasturbo

Thanks Jeremy, but I have a box of them myself. This was an upgraded 10.9 grade bolt as apposed to the standard 8.5 grade.

I was doing 105 on a service road behind my work when it happened. Hit a slight bump in the road and it broke. The car was surprisingly stable when it broke. Says something for the balance of the car.

SamGrant951

105

Im happy to hear nothing else happened at that speed!

Jfrahm

If the bolt is side loaded I wonder if the higher grade is a mistake? I recall hearing that the higher grade bolts may not be the best choice in that role. I heard a grade 5 is harder to shear than a grade 8 but a grade 8 is stronger longwise, i.e. a better rod or head bolt.

-Joel.

kasturbo

Yep, I was lucky nothing else happened. I haven't looked yet to see how I'm going to get the broken part out.

That's intresting Joel. I have never heard that. I saw the shear ratings for the 10.9 compared to the 8.5 and they were stronger.

Chris_924s

Schiznt yo Bro- Dat's fo sho blingin'

Ready for croozin da hood.

Jfrahm

I've been doing some reading on this. Some say the higher grade bolts are more brittle and not as good for shear loads, and others disagree.

I read one page that indicated that the grade 8 (which is the same as a Metric 10.9) is not a spec for shear strength and that while they should generally be harder to shear, that may not be the case. The strength charts I found indicated the grade 8's had higher shear ratings.

My own firsthand experience was when we had a trampoline frame that was falling apart, I bolted part of it together with a grade 8 bolt, which sheared several times until someone pointed out that a grade 5 was better in a shear load. Indeed in my application this proved to be the case and the grade 5 never sheared.

I also read that with proper torque the grade 8 was stronger in shear but if it were not in some specific torque range that was not the case. I don't know about that, but I can see how enough clamping force obviates the need for shear strength in many applications (like a brake caliper for example.)

As with most things, I think it comes down to who made the thing and if they did a good job.

-Joel.

Dlefko

damn, that hoe is slammed B.