Going hard in gear........sometimes.
Thread Starter
Instructor
Joined: Sep 2013
Posts: 175
Likes: 3
From: Palmyra NY
Going hard in gear........sometimes.
Hello everyone. 1980 Corvette with automatic. Engine idle at 700 RPM. When shifting into reverse or drive it goes into gear so smooth. Other times it hits so hard. You can feel the slam at the rear end. What would cause a smooth movement one time and a hard slam the next? I had all u-joints checked and all are tight. Thanks, Don.
Le Mans Master
Joined: Aug 2006
Posts: 7,427
Likes: 1,560
From: mount holly NC
2025 c3 ('74-'82) of the Year Finalist - Unmodified
2019 C3 of Year Finalist (appearance mods)
You need to get under there and give all the parts a good inspection.
Starting with the upper and lower differential cushions
Starting with the upper and lower differential cushions
