TRNW-2: question on 6L80 transgo pr valve install

Steve Everett severett61 at gmail.com
Mon Oct 6 11:40:24 PDT 2025


 Stupid question probably,  but I'm building a 6L80 stock unit that has
been built at least twice,  it had a transgo PR valve setup with the boost
valve with the blowoff spring and ball,   but the lube capsule near the end
of the PR valve has been blocked with the little bb and crossdrilled like
you do with the first version Sonnax valve ?  I didn't think you were
supposed to run it like that with the Transgo valve ?  the unit failed last
time with this setup in it ,

  I'm thinking I need to use the Sonnax pr valve, but even the new Sonnax
valve doesn't have you plug and drill anymore ?

   I'm used to either using Sonnax's setup,  or Transgo's setup,  I don't
like mixing stuff

   Steve
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