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OPGI Price: $62.95
Part Type: (P) High Performance, designed to improve performance TH = Turbo Hydramantic shift transmissions
Sold As: EACH
2018 Riviera Catalog Page: 174
OPGI has locking transmission dipsticks. They're available for all the GM automatic transmissions and come with a gold cadmium-plated tube and the locking dipstick. Ideal for high-performance applications.