Quote:
Originally Posted by NoHaveMSG
Shift lock does not "lock" the rear wheels. If you bang the car down into a lower gear without rev matching, sometimes the engine does not get dragged up to speed quick enough to match the speed the car is traveling and it will break traction. This is why a RWD car will spin during a money shift.
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To elaborate more.
A shift lock initiation is done by downshifting mid turn without rev matching.
The sudden jolt to the driveline can cause the rear tires to lose grip.
Not nice to the drivetrain at all.
And yes, locking on decel can cause understeer.