Recent content by jroc

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  1. J

    Wierd shifting 200-4r, I need a trans expert!

    I just installed a 305/200-4R combo from an 89 caprice into my 56 Chevy truck. I need help diagnosing the upshifts. Under acceleration the RPM goes up normally then jumps higher for a full second just before a normal upshift. It feels like a quick downshift then an upshift. The fluid is clean...
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