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 35 spline axles handle?
Pro Race 35-Spline Axles (up to 1000 hp1) Recommended for drag-race-only use. Requires 3.250”-bore case with appropriate gear carrier; locker or spool.
What is the diameter of a 40-spline axle?
1.708 inches
For examle, a 35-spline axle has a major diameter of 1,500 inches; a 40-spline axle is 1.708 inches in diameter. Another key aspect of the spline is its shape.
How much horsepower 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.
How much power can a 28 spline axle handle?
In all reality the 8.5 10 bolt with stock 28 spline axles is just as strong as a 12 bolt unless you are at the drag strip leaving the line at 3500-4000 Rpm with slicks. Neither rear end likes that too much. But you should be fine for what you’re doing.
What is the difference between 28 spline and 31 spline?
A 28 spline axle will have a recess in the middle while a 31 spline axle will be solid with just a centering champher (from when it was machined and ground at the factory).
Are gun drilled axles stronger?
Registered. As long as both are the same outer diameter, the solid will be stronger. Now, weight to weight, the gun drilled will be stronger because it would have a greater diameter.
How much does an axle spline engagement cost?
If you have 1″ of engagement between the splines on the axle and the splines inside the spool with 35 spline you are good to go. 1″ is even enough for 31 spline axles as well. I would say with 35 spline you could probably even get away with 7/8″ if you had too.
What’s the difference between 28 spline and 31 spline?
How much power can a Ford 8.8 handle?
Dead stock (31 spline version, which is what the Explorer has) it can handle up to about 400 rwhp as long as you’re not on DR’s or Slicks.
How do I know if I have 28 or 31 spline axles?
What year did Ford start using 31 spline axles?
The 31 splines axles were an option beginning in 1968…used thru 1972, but there’s a catch. While it’s called a 9″ rear end, the ring gear is actually 9 3/8 inches in diameter.