153 Tooth Flexplate – External Balance Suit SB Chev 305,350,262 V6, 1-Piece Main, 1986-On PIFRA-160 FRA-160 PIONEER Automatic Transmission Flexplates are a high quality replacement part designed to restore OEM levels of performance. Each plate is built to the original dimensions out of high grade steel, features an automated welding process for exceptional strength and consistency and then precision balances to factory specs.Center Hole Dia. 2.070\”10.75\” Dia Pattern 6 holes at 5.375\”