1985 SPEEDO GEAR USAGE CHART G CAR Continued D D A R G R G D I E I E A V A V A P TIRE SIZE AXLE TRANS E R E R T N R P333 33333 3 33 NOTE 66 TRANS CODE CV C5 ENGINE 305H LG4 4 3Z LB4 67 2ND DESIGN HAS PLASTIC DRIVEN GEAR 8 STEEL SHAFT TRANS CODE HH 231A 70 TRANS CODE HL CO C6 ENGINE 305H LG4 4 32 LB4 B3 1ST DESIGN HAS PLASTIC DRIVEN GEAR 8 SHAFT TRANS CODE HH 231A B4 1ST DESIGN HAS PLASTIC DRIVEN GEAR SHAFT 85 2ND DESIGN HAS PLASTIC DRIVEN GEAR STEEL SHAFT 1991 GENERAL MOTORS SERVICE PARTS OPERAT ONS CHEVROLET 17W 4 337 4 156 6 91