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Message: <blockquote data-quote="tapeworm" data-source="post: 1865072" data-attributes="member: 26846">I understand that obviously it costs money to convert a car from swingaxle to IRS, but ignoring those costs and comparing maintenance costs versus the two is what I’m trying to compare. I’ve never maintained a race car with a bus box so I’m not sure the maintenance costs on one. Obviously CV’s, stubs, and axles have to be inspected every race but those are much easier to remove from a car than an axle from a swinger. So far it seems as though it’s about $800-$1000 a race to run a swingaxle trans competitively. From the people I’ve talked to it’s not as expensive to run a 1600 trans every race. Would opening up the internals on a swingaxle to any manufacturer and size reduce maintenance costs?</blockquote>