RockJock Sway Bar Link Rear Bolt Size

explorerlyon

explorerlyon

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I just pulled off a set of extended ~10" rear sway bar links that are completely worn out, but I don’t know what brand they are. I am replacing them with new RockJock rear sway bar links, and ran into a hardware mismatch—the bolt/hole size is different by roughly 4mm. From what I can tell, RockJock links are designed to use standard Mopar sway bar link hardware. My assumption is the old links were from a different aftermarket kit that used smaller hardware.

Can anyone confirm what the correct bolt size/hardware should be for the RockJock rear sway bar links (axle side and sway bar side), and whether ordering standard Mopar replacement hardware is the right move? I’d rather confirm before I order parts. Alternatively, I could return the links and find another kit that includes the hardware.
Link 2.jpg
 
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The OEM bolt sizes are M10x1.5 and M8x1.25 (factory parts catalog info); you are correct that the Currie extended length swaybar links are designed to use the factory hardware.
The video below verifies the use of factory hardeware when installing the exteded length links.

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CharlesHS said:
The OEM bolt sizes are M10x1.5 and M8x1.25 (factory parts catalog info); you are correct that the Currie extended length swaybar links are designed to use the factory hardware.
Click to expand...
Thanks. What throws me off is the bolts I removed are M10x1.5. The inner diameter of the RockJock links is 14.5mm. Thats a lot of slop. I get that we have side clamping force, but was not expecting the RockJock hole to be so much larger than the shoulder on the bolt, by 4.5mm. That video show the bolts fitting snugly in the RockJock link. I found this note on the rockjock website. I think this confirms I do have to replace the hardware, but with what hardware????? I can go buy 14mm at the hardware store, but not with the flag nut for the top mount.

14mm.jpg
 
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explorerlyon said:
Thanks. What throws me off is the bolts I removed are M10x1.5. The inner diameter of the RockJock links is 14.5mm. Thats a lot of slop. I get that we have side clamping force, but was not expecting the RockJock hole to be so much larger than the shoulder on the bolt, by 4.5mm. That video show the bolts fitting snugly in the RockJock link. I found this note on the rockjock website. I think this confirms I do have to replace the hardware, but with what hardware????? I can go buy 14mm at the hardware store, but not with the flag nut for the top mount.

View attachment 669230
Click to expand...

Shoulder bolts are required. Probably won't find them at a typical hardware store. Try McMaster-Carr.
 
explorerlyon said:
Thanks. What throws me off is the bolts I removed are M10x1.5. The inner diameter of the RockJock links is 14.5mm. Thats a lot of slop. I get that we have side clamping force, but was not expecting the RockJock hole to be so much larger than the shoulder on the bolt, by 4.5mm. That video show the bolts fitting snugly in the RockJock link. I found this note on the rockjock website. I think this confirms I do have to replace the hardware, but with what hardware????? I can go buy 14mm at the hardware store, but not with the flag nut for the top mount.

View attachment 669230
Click to expand...
The OEM bolts are shoulder bolts so the thread size is irrelevant. I'll measure the shoulder diameter here in a bit.
 
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Thank you all for your help, you solved my issue. I ordered from Amazon the correct hardware with same-day shipping (comes from Region Offroad). On the left is the bolt I removed, standard M10 for the crappy links I had. The Region Offroad hardware shoulder measures 13.3mm.

Sway Bar Bolts.jpg




I am also replacing the sway bar bushings. I ordered Delphi from Summit Racing. They fit perfect and seem good quality. Made in the USA, rubber. I have used Delphi on some BMWs I work on and they were always good.

Delphi.jpg
 
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