Synchromesh Wear
Symptoms
Grinding or crunching when engaging gears, particularly second gear on downshifts.
Cause
The brass synchro rings wear against the steel gear cones over time. Heavy-handed shifting and old gearbox oil accelerate the wear.
Fix
Gearbox rebuild with new synchro rings. Cost: $1,500-$3,000 for the VW-based gearbox, $3,000-$6,000 for the 914/6's Porsche gearbox.
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