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Tom D.
I see complaints of the I.D. of the bushings being too large. Are the bushing hole I.D. on this product the same as my OEM bolts that I will be using ?
The inner diameter (I.D.) of the steel sleeves in these bushings is designed to match the M10 front upper and M12 lower/rear upper metric bolts used by Jeep from the factory.
The complaints regarding the bushing I.D. usually stem from two specific scenarios:
Metric vs. Standard Confusion: Jeep used metric hardware for the TJ. If a previous owner replaced your factory bolts with standard (SAE) hardware that is slightly thinner, you will experience a "loose" fit and potential "death wobble" or clunking.
Manufacturing Tolerances: While Crown parts are designed to meet OEM specifications, some batches may have slightly more "play" than the original Chrysler parts. For a suspension component, even a fraction of a millimeter can lead to noise if the bolt isn't torqued properly to crush the bracket against the sleeve.
How to Ensure a Proper Fit
If you decide to go with this kit, follow these steps to prevent the "loose bushing" issue:
Inspect Your Bolts: Verify that you are using the original metric 10.9 grade bolts. If your bolts are rusted or "necked down" (thinner in the middle), replace them with new factory-spec hardware.
Torque While Weighted: Never tighten control arm bolts while the Jeep is on jack stands. Lower the vehicle onto its own weight first, then torque them to factory specs (approx. 55 ft-lbs for uppers, 130 ft-lbs for lowers). This ensures the bracket "pinches" the sleeve correctly.
The complaints regarding the bushing I.D. usually stem from two specific scenarios:
Metric vs. Standard Confusion: Jeep used metric hardware for the TJ. If a previous owner replaced your factory bolts with standard (SAE) hardware that is slightly thinner, you will experience a "loose" fit and potential "death wobble" or clunking.
Manufacturing Tolerances: While Crown parts are designed to meet OEM specifications, some batches may have slightly more "play" than the original Chrysler parts. For a suspension component, even a fraction of a millimeter can lead to noise if the bolt isn't torqued properly to crush the bracket against the sleeve.
How to Ensure a Proper Fit
If you decide to go with this kit, follow these steps to prevent the "loose bushing" issue:
Inspect Your Bolts: Verify that you are using the original metric 10.9 grade bolts. If your bolts are rusted or "necked down" (thinner in the middle), replace them with new factory-spec hardware.
Torque While Weighted: Never tighten control arm bolts while the Jeep is on jack stands. Lower the vehicle onto its own weight first, then torque them to factory specs (approx. 55 ft-lbs for uppers, 130 ft-lbs for lowers). This ensures the bracket "pinches" the sleeve correctly.
Ron K.
I would like to also replace all the nuts'n bolts etc. Can you point me to what I will need?
Jeep Control Arm Hardware Everything you need will be here. Us the sort by Jeep feature to narrow the options for correct fitment.
Tom M.
What is the measurement for the control arms center to center of bolt holes in inches?
15.75" for the lower control arms and 15" for the upper control arms. Thanks for your inquiry.
Michael G.
Note: Does not include front axle-side upper control arm bushings.
Why is this bushing not included? Do I need it for this install? Thank you!
You could reuse your old one if it is not worn out. If you would like to replace them as well, see the following link. Axle end control arm bushing. Thanks for your inquiry.
Mohammed A.
Hi,
I wanted to ask if I ordered the front and rear parts, how much would the package weight, and the dimensions of the package?
24 x 11 x 10
Weight 21 lbs