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control arm bushings

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Post by McCauley5983 Sun Jul 18, 2010 7:03 pm

does anyone know how too measure the lower front control arm bushing and why is the front bushing a different size then the rear on the front lower control arm
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Post by bigredlaguna Sun Jul 18, 2010 7:38 pm

control arm bushings Frontbushing

Small bushing specs--front lower
Dimension A O.D. : 1.36"
Dimension B I.D. : .51"
Dimension C Length : 2.4"
Dimension D Length : 2"
Dimension E Length : .23"
Dimension F Length : .56"
Dimension G O.D. : 1.42"

Big bushing specs--front lower
Dimension A O.D. : 1.65"
Dimension B I.D. : .57"
Dimension C Length : 2.41"
Dimension D Length : 2.03"
Dimension E Length : .24"
Dimension F Length : .32"
Dimension G O.D. : 1.67"

Lower rear bushing specs
Dimension A O.D. : 1.9"
Dimension B I.D. : .57"
Dimension C Length : 2.4"
Dimension D Length : 2"
Dimension E Length : .24"
Dimension F Length : .32"
Dimension G O.D. : 1.92"

As to why the front is different than the rear, I don't know. I speculate that the lower rear have greater force loads than the other ones.
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Post by McCauley5983 Sun Jul 18, 2010 8:05 pm

so the lower rear is the same regardless of the lower front size
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Post by bigredlaguna Sun Jul 18, 2010 8:10 pm

billy-ray wrote:so the lower rear is the same regardless of the lower front size

Yup.
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Post by McCauley5983 Sun Jul 18, 2010 8:31 pm

cool thanks man i appreciate it
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Post by BlackChevelleSS Sun Jul 18, 2010 8:39 pm

If your rebuilding the rear suspension as well I recommend making the lower control arms as stiff as possible. boxed control arms are good but Tubular arms are better. Use poly bushings or solids on the lowers but use stock rubber on the uppers if the stock arms are used because the rear suspension will bind if you dont. I like the adjustable uppers that use a heim joint on one end to help eliminate binding.

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