Who has done a 5.7 with a833 4 speed Overdrive ?

Yea.. I'm running Schumacher. I moved 5/8 forward but it wouldn't have mattered if I stayed in stick location

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That picture of the idler hitting the pan is without tie rods and the steering stops are on the LBJ. So that might be further than the idler actually travels. Have you checked again with the steering completely assembled?