I've still been kicking around ideas for my heim setup. Nicely priced out setup! rather than go the tubing-bung route, i've been looking into having a shop locally drill and tap 1/2-20 thread into a piece of 7/8 OD round stock. at $12.50 each for 2-inch lengths, (gets me through my tubing and into my gusset plates on the arms) it's a bit pricey. I have another shop to price them out through. I like your idea of putting them into the a-arm in relation to how the kart sits vs putting them in line with the arm tubing and ending up with misalignment from the get-go.
a rubber encased bushing is just like the bushing that your engine mounts with to the rear subframe. it allows some twisting movement at the attachment point so that the twisting torque of the engine, or in this case suspension, isn't transferred directly from one component to the next (which can = bent or cracked components).
Last edited by x-bird; 02-07-2012 at 06:10 AM.
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