Part number: GM 55565177. F17 WIDE RATIO GEARBOX (W394 DIFF). This is an F17 g earbox, with a wide ratio diff (W394). Genuine Vauxhall part. 5 SPEED MANUAL GEARBOX. AB 31 to AB 38, AB 40 to AB 56, IV 1 to 28, IV 30 to 32, IV 36 & 40, IV 52 to 54, IV63, KW 1 to 14, PA 21 to PA 38, PH 4 to PH 41, PH 49, PH 50.
