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Lock Clip: GM various plus 97-04 (ea) has been added to your Cart
Alternator voltage REGULATOR : 68-88 GM (lots)
Reviews

This may save you a bucket of money and if envisioned keep the alternator you have.

Its the main problem that blows . the internal REGULATOR on Alternators with them.. mainly post 68 to later 80'.s as shown.

Some instructions below may help too.