Rereading your post, I don't think I gave your the correct info. If the R4 compressor and manifold is being deleted, why do you care about the R4 suction hose clearance?

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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