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  1. 4L80/85E Transmissions. 6L90 Transmission
    Please tell me about the 4L80Etransmission of my 1994y GMC SUBURBAN 6.5 DIESEL. My SUBURBAN lost reverse gear and rebuilt the transmission. I put that transmission in my car, and I drove it, and all the gears switched normally. However, manually switch to the 2nd gear and pull out the...
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