The Ford 8.8 axle can have either 28-spline or 31-spline axles. The 28-spline axles are 1.18 inches in diameter, while the 31-spline axles are 1.29 inches in diameter. The 31-spline axles are more desirable but less common.
Contents
- Why is the Ford 8.8 so popular?
- What spline is a Ford 8.8 rear end?
- How do you identify the 8.8 rear end of a Ford Mustang?
- How do I know if my Ford 8.8 is a limited slip?
- How many splines does a Ford 8 inch rear end have?
- Is Posi the same as limited slip?
- How do I know if I have 28 or 31 spline axles?
- How many splines does a Ford 8-inch rear end have?
- Why is the Ford 8.8 rear end so popular?
- How much horsepower can 31 spline axles handle?
Why is the Ford 8.8 so popular?
The Ford 8.8 differential is lighter than the Ford 9˝ differential, less expensive to buy used, and with a little modification can be as strong or stronger than a GM 12-bolt differential. The Ford 8.8 is virtually a clone of the Chevy 12-bolt and therefore almost as strong.
What spline is a Ford 8.8 rear end?
FX4 Models: All Ford Ranger 8.8-Inch axles have 28-spline axle shafts except for the 2002 FX4 and 2003 & newer FX4 Level II models which had 31-spline shafts.
How do you identify the 8.8 rear end of a Ford Mustang?
You can identify the Ford 8.8-inch rear by its rear cover. It has a thin metal or plastic 10-bolt cover, and the bolts are 7/16-inch thread. The cover is not quite square, measuring about 101/2 inches high by 11 inches long. The 8.8-inch pinion shaft is 15/8 inches and has 30 splines.
How do I know if my Ford 8.8 is a limited slip?
The ID tag can be your friend. It will tell you the gear ratio, rearend style, and whether it has limited-slip.
How many splines does a Ford 8 inch rear end have?
28 spline
Ford 8″ – Drop out style rear end with 8″ ring gear. Has removable pinion support on the front. Uses 28 spline axles.
Is Posi the same as limited slip?
Posi-traction, also known as a limited slip differential (LSD), is a differential option that strikes a balance between an open and locking differential. Its purpose is to improve traction without sacrificing drivability.
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 Ford 8-inch rear end have?
28 spline
Ford 8″ – Drop out style rear end with 8″ ring gear. Has removable pinion support on the front. Uses 28 spline axles.
Why is the Ford 8.8 rear end so popular?
Enter the 8.8
Among the options they explored was the Ford 8.8-inch rear end. These units can withstand considerable abuse, as proven for decades by the Ford racing community. And, unlike the 9-inch, the 8.8’s pinion gear doesn’t have the extreme low offset on the ring gear, so it runs more quietly.
How much horsepower can 31 spline axles handle?
S/S 28- & 31-Spline Axles (28-spline up to 400 hp1, 31-spline up to 500 hp1) For street and handling performance applications, 31-spline S/S axles are recommended.
