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  1. CruisinGA

    Four speed swap?

    Rebuild kits are $135 for a 420, Napa has the gaskets. Problem is finding one..... :(
  2. CruisinGA

    Four speed swap?

    I'm going SM420 for the reasons Toygeek listed. I already have the right transfer and bellhousing, and I need lower gearing. I was going to go to a 4 spd, but realized for about the same amount of work I could have a 7:1 first gear. I had a SM465 laying around as well, but the adapters for it...
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