11-19-2006, 02:04 PM
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Darth Slacker
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Join Date: Mar 2006
Location: Northern NY, USA
Posts: 9,623
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 Quote:
Originally Posted by velocedoc
I haven't heard of anyone twisting the rear arms before, but that doesn't mean it hasn't happened.
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I sorta caught the idea either here or at an Alfa high performance race parts site where they were discussing it and the reasons why, but only after I had everything installed.
Loosely it had to do with stiffness rather than failure, but apparently in outright competition use, they can wad themselves up. (the words used were 'boxing the trailing arms is a must')
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Which would be the best way to go here? The safe way would be to go blue all the way around.
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I didn't have the option, or at least the patience to wait weeks for a matched set, (middle of the summer 'ain't nobody got nuthin in stock blues'), so my excuse is 'it's ok because the softer poly is closer to the rubber AFA hardness, so it's less likely to be over stiff but still acts as an improvement' (again, an excuse, not a reason  )
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Next question would be how to tighten these bushings up. The best way I read is to put the car on the ground and tighten.
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Definitely, though somewhat difficult to accomplish, particularly on the body to arm end unless the car is on a lift held up by the wheels or up on jackstands at the front jack points, under the axle tubes at the rear, and the chassis relatively level.
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My question is...how tight is tight? Factory torque specs?
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At the arm to diff it was 79-98 ft lbs on the nut side, (dry, and with an additionally uncalled for tiny drop of loctite), but I never did find the spec for the trailing arm to body end and sorta split the difference while trying to make sure it wasn't so much that those thinner mount points were crushed/deformed.
Last edited by Tifosi; 11-19-2006 at 02:07 PM.
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