Ring and Pinion 8.8 ratios - 3.08=40/13, 3.27=36/11, 3.31=43/13, 3.55=39/11, 3.73=41/11, 4.10=41/10 7.5 ratios - 3.08=37/12, 3.27=36/11, 3.45=38/11 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 7 8 9 10 11 12 13 14 15 16 Transmission Gear 4.03 (83-86 TC 1st) 3.97 (87-88 TC 1st) 2.47 (A4LD 1st) 2.37 (83-86 TC 2nd) 2.34 (87-88 TC 2nd) 1.49 (83-86 TC 3rd) 1.47 (A4LD 2nd) 1.46 (87-88 TC 3rd) 1.00 (83-88 TC 4th, A4LD 3rd) 0.85 (some early T-5 5th) 0.81 (83-86 TC 5th) 0.79 (87-88 TC 5th) 0.75 (A4LD 4th/Overdrive) Tire Size 165 175 185 195 205 215 225 235 245 255 265 275 285 295 305 85 80 75 70 65 60 55 50 45 40 12 13 14 15 16 17 18 19 20 Engine RPM 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6250