1. OE # : GM 340296, 3991403, 471598 2. Teeth : 168 3. Pitch : 12 4. O.D. : 14.13" 1976-1985 GM's Astro, Safari, CK Series, Blazer, Jimmy, Camaro, Impala, Century, Monte Carlo, Corvette, Firebird, G/P-Series, LeSabre, Ventura 6 cyl 4.1L, V6 4.3L, V8 5.0L/5.7L engineAll automatic transmission cars have flexplates. These thin discs of stamped steel perform a number of functions well out of ...