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Strut to spindle bolt size?

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Old Jul 3, 2023 | 08:55 PM
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Strut to spindle bolt size?

I am in the process of buying my first 3rd Gen still and starting to pick up little stuff here and there for it. I am wanting to order some bolts for my Jeep anyway so I thought I'd grab the spindle to strut bolts too. The best I can tell is they are M16 x 2.00 x 70mm. Does that sound about right on the length? My choices are 65mm, 70mm or 75mm

Thanks!
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Old Jul 4, 2023 | 09:41 PM
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Car: '87 IROC
Engine: LB9
Transmission: TH700R4
Re: Strut to spindle bolt size?

If you're going to be buying a lot of fasteners, you're going to need a way to ID them, like caliper and thread gauges. There are a lot of options.

They are M16 of fine (unknown) threads/mm and length. They are Grade 10.9, IIRC.

As far as length, I recall the rule of thumb is you should have at least 1.5 bolt diameters of thread engagement.

Last edited by paulo57509; Jul 4, 2023 at 09:44 PM.
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Old Jul 7, 2023 | 10:04 PM
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Re: Strut to spindle bolt size?

Bump for more info. I do not have access to the car to measure
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Old Jul 9, 2023 | 04:39 PM
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Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: Strut to spindle bolt size?

Are you missing the factory ones? I know a few vendors here sold new replacements but the original bolts seemed more reliable. There were threads here a while ago about the new bolts breaking before reaching proper torque.

I have a couple sets in the garage, ill get some measurements.
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Old Jul 9, 2023 | 07:14 PM
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//<86TA>\\'s Avatar
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Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: Strut to spindle bolt size?

16mm x 75 grade 10.9. Don't know the thread pitch
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Old Jul 11, 2023 | 05:37 PM
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Re: Strut to spindle bolt size?

Originally Posted by //<86TA>\\
16mm x 75 grade 10.9. Don't know the thread pitch
Thank you! I very much appreciate it.
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Old Jul 22, 2023 | 11:56 AM
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Re: Strut to spindle bolt size?

We sell a Strut to Spindle Hardware Kit. The hardware in the kit is an upgrade over stock, we have tested them past the 195 ft lb. torque rating with not issues.
1982-92 Camaro/Firebird Strut to Spindle Hardware (screamingchicken.com)


Last edited by scfbody; Aug 2, 2025 at 11:40 AM.
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Old Jul 23, 2023 | 05:16 PM
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From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: Strut to spindle bolt size?

Originally Posted by scfbody
We sell a Strut to Spindle Hardware Kit. The hardware in the kit is an upgrade over stock, we have tested them past the 195 ft lb. torque rating with not issues.
1982-92 Camaro/Firebird Strut to Spindle Hardware (screamingchicken.com)

I didn't know you were a sponsor here, though honestly I haven't been active in a while. You guys have a lot of good stuff, ive ordered a few things from you online recently and will be back for some more!
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Old Jul 24, 2023 | 07:00 AM
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Re: Strut to spindle bolt size?

Thank you! We have been a sponsor for a couple of years.
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