How do I know if I have 28 or 31 spline axles?
The obvious differences in 28 and 31 spline axles will be the number of splines! When you count the number of teeth (splines) on each axle, you can find out which option you have. 31 Spline Axles also tend to be larger in diameter to accommodate the increased amount of splines.
How many splines does a GM 10-Bolt have?
Inside the 8.2-inch 10-bolt, the ring-gear bolts have 9/16-inch socket heads with 3/8-24 left-hand threads. The pinion diameter is 1.438 inches, and has 25 splines. Like all Chevy 10-bolts, the axles are retained by C-clips on the inner end of the axle shaft inside the carrier.
Are more axle splines better?
Higher spline counts gives the axle more surface to transfer the load of the torque from the differential. There is also the side advantage that an axle with more splines will also be physically bigger. At least in most modern axles that use similarly sized spline teeth.
How much horsepower can a 31 spline axle hold?
Pro Race 31- & 33-Spline Axles (up to 600 hp1) Recommended for drag-race-only use.
How much power will 31 spline axles hold?
A 30-spline axle is rated at 6,200 lb-ft, a 31-spline at 7,000, a 33-spline at 8,200, a 35-spline at 9,600, and a 40-spline at 12,000.
What size is the pinion nut on GM 10-Bolt?
8.5″
PYN10 – 10-Bolt 8.5″; Pinion Nut (30 Spline Pinion)
How many splines does the 10-bolt rear end have?
The pinion is a 30-spline piece and the pinion nut is 1 1/4 inches. Axleshaft spline count can be either 28 or 30 splines. The 10-Bolt has proven itself over the years to be a decent performer in mild to medium duty off-road applications.
How do you count splines on a shaft?
To determine the spline size of a component (rack and pinion, steering column, and steering box), measure the outside diameter and count the number of splines. If there is a flat spot on the shaft and some of the splines are missing, count halfway around where there are splines and double that number.
What is axle spline count?
Spline count dictates the overall diameter of the axle shaft, the larger the axle, the stronger it is.
How do I choose an axle spline?
When in doubt, go with the largest spline count you can fit.
- 33 or more splined axles for any drag race application.
- 35 splines for ideal street/strip use.
- Not all housings can accommodate large diameter axles.
How much HP can 30 spline axles handle?
S/S Direct-Replacement C-Clip Axles (30-spline up to 450 hp1, 31-spline up to 500 hp1) The S/S C-clip axles are a direct replacement for OEM C-clip axles.
