7.5 to 8.8 - Ranger-Forums - The Ultimate Ford Ranger Resource


Drivetrain Tech General discussion of drivetrain for the Ford Ranger.

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Old 08-06-2006
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7.5 to 8.8

I want to switch out my 7.5 to an 8.8, is it truley a direct swap or do I need to get a new drive shaft and other parts?
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Old 08-06-2006
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true swap as long as its a 28 spline, and drum brakes.
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Old 08-06-2006
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i did that to my truck and it eas basicly a true swap but i replaced the the axel seals and the gears a while later.
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Old 08-07-2006
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I have a 97 2.3l 7.5 and went to a 04 FX4 8.8 rear. The problems i ran into were my stock wheels not fitting on the axle. I had to bore out the inside of the wheel to fit onto the axle hub. And the parking brake did not fit correctly. Other than that it was simple.
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Old 08-07-2006
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fx4 is a 8.8 31 spline axle, and sounds like you had 14in rims.
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Old 08-08-2006
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If i put 31's on my truck will the 8.8 help out
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Old 08-08-2006
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i dont see it making that much of a difference. Its when you get up to tires in sizes like 35s that will make you wish you had a 8.8. Just make sure your gears are good enough for the tires you will be running.
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