I'd say you have a problem with either the linkage to the transmission, or the transmission itself.
Hemmings Motor News, pick up a copy or go online.
The linkage that connects the shift lever to the transmission could be out of adjustment or the reverse gear in the transmission itself could be bad. Usually it's the linkage.
truck will only go forward not in reverse does this mean the transmission is gone
A stock corvette can go 190 mph
Back into parking spaces. How with no reverse??????? Try again
If your 2007 Corvette can go in reverse but not forward, it may indicate an issue with the transmission. Possible causes include low transmission fluid, a malfunctioning shift linkage, or internal transmission damage. It’s important to check the fluid levels and look for any warning lights on the dashboard. If the problem persists, consulting a professional mechanic for a thorough diagnosis is recommended.
It is reverse threaded. You go clockwise to loosen.
Check the transmission fluid level.
no
There is no such thing as a Corvette ZR6.
By repairing the problem. Low brake fluid, defective master cylinder, etc.
Go to http://www.corvettefever.com/howto/33098/index.html. This gives full description for rebuilding C4 headlght drives.