C3 Corvette Rear End Gear Ratio. 1st gear 2.48:1 2nd gear 1.48:1 3rd gear 1.00:1 reverse gear 2.08:1 lubricant capacity 3 quarts four speed m20 transmission 1st gear 2.52:1 2nd gear 1.88:1 3rd gear 1.46:1 4th gear 1.00:1 reverse gear 2.59:1 close ratio four speed m21 transmission (not available with standard engine) 1st gear 2.20:1 2nd gear 1.64:1 3rd gear 1.27:1 300 hp 350 ci base engine:
Heavy duty positraction (454) cau: There is no core charge! By the late 1970’s, corvette production was moving at a pace that had never been seen in the history of the car.
For '85, It Was A 3.07 Ratio.
Remember the converter immediately starts losing torque multipication as soon as the rear wheels start rolling and effectively gives the 2.74 * 3.08 or 8.4392 final drive multipication in the coupe/auto. The rearend gear ratio refers to the relationship between the driven gear (ring) and the drive gear (pinion), and is easily calculated by dividing the ring gear tooth count by the drive gear tooth count. The 1975 c3 marked the last model year that a true convertible corvette was available for purchase until 1986.
Heavy Duty Positraction (454) Cav:
(not shown) add for $152. Please call when ordering gears 2nd gear 1.48:1 3rd gear 1.00:1 reverse gear 2.08:1 lubricant capacity 3 quarts four speed m20 transmission 1st gear 2.52:1 2nd gear 1.88:1 3rd gear 1.46:1 4th gear 1.00:1 reverse gear 2.59:1 close ratio four speed m21 transmission 1st gear 2.20:1 2nd gear 1.64:1 3rd gear 1.27:1 4th gear 1.00:1 reverse gear 2.26:1
I Think It Is A Very Good Gear Will Certainly Get The Rear End Loose With Ease :Devil:
Traction is a bit of a problem If you have 3.36's you wouldn't really notice anything unless you changed over to at least 3.73's or 3.90's. The decal should be on one of the rear compartment doors, or it may be on the center console/arm rest door.
There Is No Core Charge!
Its not a 2.76 in a 76 its most likely a 3.08 or 3.36 thats most common on l82 option it is 3.55. This is behind my 388 stroker thats 500hp at the flywheel. We offer ring and pinion corvette gears in all the ratios, diameters and spline counts you’re looking for to complete your drag car build.
You'll Need To Check Your Rpo Code Decal To Determine Which One You Have.
As my big block '71 has 3.08's i would think a small block would have 3.36's. As chevrolet general manager, robert lund, had stated in march 1977, “the st. Heavy duty positraction (454) cau: