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| 7 Series (E23, E32, E38, E65, E66) General discussion and technical help for all year 7 series cars. |
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04-04-2007, 01:32 AM
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#1 |
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7 Series
I am shopping around for polyurethane bushings for my 7 series and no one seems to make them, but AutoBavarian carries them, but they are charging three times what they cost to make. Does anyone know where i can buy reasonable priced 7Series bushing, made out of polyurethane? Also, does anyone know where to buy a great exhaust system, with a free flowing cat without breaking the bank? James |
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04-04-2007, 10:03 AM
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#2 |
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I have had Grunts on my 840 for about 25k miles and 3 1/2 years. If you don't see yours listed, email them for a cross reference because your uppers should be the same as mine. http://www.gruntsbushings.com/bmw.html
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It could be that the purpose of your life is only to serve as a warning to others. Mine sometimes feels that way. Terry Aloha Oregon '95 840 '98 SVT Cobra |
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04-07-2007, 03:48 PM
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#3 |
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Are Grunt bushings, their name for poly urathane? your 840 has similar bushing as my older 7 series? Did you replace the ball joints in a poly, do thry even carry such an item? James |
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04-07-2007, 04:18 PM
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Here is his story http://www.gruntsbushings.com/index.html The E23/E24/E31/E32/E34 and I believe some of the earlier models all use the same bushing sizes. The material has been changed so that the E32 750 bushings are the standard bushings of choice even though the E34 M5 bushing is technically stiffer. Arm shapes and lengths are different on some that use the same bushings. The E32 and E31 share arms but the E31 has a solid bearing instead of a rubber bushing in the lower forged aluminum arm. Poly bushings have a shorter life and a harder ride with more transmitted road noise. Grunts are noted for lasting longer than the other poly bushings on the market. Ball joint replacement requires a new arm because they are not replaceable by themselves. Poly would be a poor choice even if it were available. Ball joints are metal on metal with a lubricant in between to prevent wear. When I replace my Grunts I will probably use the M5 bushings to cut down on transmitted road noise. I don't drive the 840 hard enough to justify the exta stiffness.
__________________
It could be that the purpose of your life is only to serve as a warning to others. Mine sometimes feels that way. Terry Aloha Oregon '95 840 '98 SVT Cobra |
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