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Old 12-16-2004, 11:34 PM   #1
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Default 2000+ Wheel Lug Torque / Pattern

Just got my 18x8 GXP wheels and ready to install on the SSEi, What is the reccomended lug torque? Should I stick to the criss cross tightening pattern as well? I don't want to warp my rotors!
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Old 12-16-2004, 11:47 PM   #2
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yes you must criss cross pattern, like a star, I cant remember the torque specs though.......
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Old 12-17-2004, 04:35 AM   #3
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100 ft lbs I bet, But I never tighten mine that much.
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Old 12-17-2004, 09:42 AM   #4
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I would recommend nothing less than 90 ftlbs on aluminum rims. Use a crisscross pattern when doing the initial tightening, but set to final torque specs by just doing a sequential tightening. This is the best way to make sure that you don't warp the rotors.

Make sure that when you install the rims, that you tighten to a resonable level once the car is on the ground, then move the car around so that the suspension settles back to it'* normal position. This can be accomplished by backing the car up ~10ft then driving back forward again. Then apply the final torque to the lugs.

And as always, recheck your lug torque after you've driven the car for anywhere between 25-50 miles to make sure that nothing has changed.
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Old 12-17-2004, 10:36 PM   #5
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The factory spec is 100ft lbs in a criss cross pattern.

Also it is always a good idea to do a re-torque with in 100 miles. Bits of dust and debris can settle causing the lugs to become to loose.
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Old 12-17-2004, 10:40 PM   #6
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I guess I didin't know that. On my old car ('94 Intrepid) warped rotors was attributed to the crisscross tightening pattern. Tightening in sequence dispelled any vibration caused by the criss cross. I found this out after my first brake job on that car. The torque was set using a torque wrench and was not over torqued. Simply loosening up the lugs and retightening them down one after the other (non-criss-cross) made it brake smooth as silk.

I'll have to retorque my lugs if the factory spec is 100ftlbs. Mine are at 90ftlbs right now.
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Old 12-18-2004, 12:41 PM   #7
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The owners manual (found in tech info) section 5 page 27 (5-27) shows a criss cross pattern and specifies 100 ft lbs.
Interesting point about the brake rotors and torquing in a circle pattern to eliminate rotor squeal? I suspect it may have been warped in someway and the circular pattern somehow trued the rotors so they wouldnt squeal?
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Old 12-18-2004, 01:38 PM   #8
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The thing is, it was like that on all subsequent brake jobs. And actually, if I remember correctly, the owners manual for the Intrepid calls for a circular tightening pattern. With the Bonneville, I only read the sections of the owners manual pertaining to setting up the memory, stereo, and other various other electrical components. Now that I know about the criss-cross tightening, I'll do that from now on.
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