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  1. 84 gmc sierra firing problems

    Electrical
    helping a friend, he replaced his 350 with an older 305 out of a camaro, (type with dipstick on drivers side). he has had multiple electrical probs since. [truck was factory 305 and replaced it with 350]. (350 broke, another story) now has an older model 305. has same factory distributer from...
  2. 02 yukon denali no gears

    Transmission - Rearend
    Have a 2002 yukon denali with the 6.0 and the 4L65E AWD, there were no gears so pulled and rebuilt and replaced torque convertor. Before pulling there were no transmission codes, after the rebuild and install there were 4 transmission codes P0740, P0785, P1810, P1860. I know what the codes mean...
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