rear differential housing #
#1
08-31-2003, 01:47 PM
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Location: Massachusetts
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rear differential housing #
i have a 1996 F-150 4x4 the gears in the rear end are shot i bought a complete axle at a junkyard for it the gears are the same however the code on the differential housing itself is a different number my current number is F0TW-4025-AA
the new axle says E7TW-4025-BA the new axle seems like a more heavy duty axle but im not sure if those numbers mean anything important or if they are manufacture site reference numbers
the new axle says E7TW-4025-BA the new axle seems like a more heavy duty axle but im not sure if those numbers mean anything important or if they are manufacture site reference numbers
#2
09-06-2003, 03:02 PM
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Where are you coming up with these numbers? The most important thing here; you truck is a 4WD. Make sure that you get the same ratio that the old diff. was. This is easy. Count the # of teeth on the Ring and # teeth on Pinion of each diff. For exmple: 11 teeth on the pinion and 41 on the ring= 3.73 (41 divided by 11 = 3.73).