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    4L80e 1987 C 10 ls swap not shifting

    Hey guys I need some help. I got a 6.0 with a 4l80e Btr stage 2 cam 799 heads Short headers Ls7 lifters Swap the trans to a 1987 Chevy c10 from 2002 Chevy Silverado 2500 I finally got it “running” I’m able to drive it but my transmission isn’t shifting. When I drive It does high revs the...

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