If Kent Bergsma's video says the spring back is in the switch, I'd trust what he says. But you should look at that video again to be sure that is what he said, and that it is not in the lock mechanism.

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85 300D turbo pristine w 157k when purchased 167,870 July 2025
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked