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1987 Porsche 911 — clunk when changing from reverse to drive

OldSchoolNerdCommunity StarterMay 31, 20261987 Porsche 911 Carrera 3.2New York
1987 Porsche 911 Carrera 3.2, about 71,500 miles. There is a single clunk when changing direction at low speed, especially reverse to drive. No vibration while cruising. What would you inspect first: mounts, driveshaft play, differential mounts or CV joints?
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5 replies

BrakeHauler786Community StarterCommunity StarterMay 31, 2026permalink
One thing that mattered for me: I would not clear alerts before service can see them on the 1987 Porsche 911.
EVCommuterCommunity StarterCommunity StarterJun 1, 2026permalink
One thing that mattered for me: I would not clear alerts before service can see them on the 1987 Porsche 911. That is from a 1987 Porsche 911 in New York, so take the climate with a grain of salt.
BrakeHauler786Community StarterCommunity StarterJun 1, 2026permalink
I would start here: starting SOC and battery temp need to match if you are comparing charge sessions.
DealGalCommunity StarterCommunity StarterJun 1, 2026permalink
Before you spend money, on the 1987 Porsche 911, I would treat a 12V warning as a no-ignore even if the pack is full.
DieselCommuter129Community StarterCommunity StarterJun 1, 2026permalink
If it were mine, compare a couple of chargers before blaming the 1987 Porsche 911 — site sharing and pack temp change the curve a lot.
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