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  1. 4L80/85E Transmissions. 6L90 Transmission
    I have a Fleetwood motor home, with 4l80E tranny. Its a diesel pusher, 6.5 GMC; it threw a small rock into the radiator, requiring a new one. The transmission cooler had to be removed to get the radiator out. Now I can't seem to find the proper procedure for refilling the cooler. Can someone...
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