ranger rears

[procell895c]

What is the differance of a 7.5 and a 8.8, Does it change how your truck would go? Which is a higher rear? Thanks::

 

[HAPPY+RANGER+GUY]

Axles Link

More info here:
http://www.therangerstation.com/tech_library/Axles.html


Swapping in an 8.8-inch 28-spline Ranger axle for the original 7.5-inch axle provides (according to Ford) a 35% increase in strength. But this strength increase refers to the greater strength of the gears and carrier bearings (Pinion bearings, axle bearings and axle shafts are exactly the same) there is NO increase in weight capacity If you are looking for greater strength for loads created by severe offroad driving or towing you'll want to go to the next step, the Explorer axle.

The rear axles on all Ford Explorers are also 8.8's, however there are some differences:

The 8.8-inch Explorer axle use 31-spline axle shaft. Increasing from a 28-spline to a 31-spline axle allegedly increases strength of the axle shaft by 34%, however I'll go by the capacity ratings of the axle assemblies provided by the manufacturer. Ford Rates the Ranger axle at 2750lbs and the Explorer axle at 3200lbs this is a 16% increase in strength, which admittedly may be as conservative as the estimate of axle strength. The Important thing about the Explorer axle assembly (besides its 31-spline shafts) is that its axles are larger in diameter at the outer bearing journal AND the larger diameter bearings used.


It's also important to note that the 1995+ Explorer 8.8-Inch axles come with disk brakes. This is the ultimate stock axle upgrade for your Ranger.

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[adsm08]

What is the differance of a 7.5 and a 8.8/

Diameter of the ring gear.

Does it change how your truck would go?

I don't understand the question and suspect that you don't understand the physics.

Which is a higher rear? Thanks::

Um, if I understand this part correctly, that's not how it works.

 

[carbuff]

The 7.5 vs 8.8 issue is just a matter of strength. I think you are confusing this with gear ratio, where the higher number will make you vehicle accelerate faster. So, in a nutshell, no, upgrading to an 8.8 will not make it go faster.........unless the 8.8 rear has taller gears in it than the 7.5 does. If you can find an 8.8 with taller gears and a locker, then it could be a worthwhile upgrade.