Ford Ranger Rear Axle Width Chart by Year 1983 to 2011
The Ford Ranger rear axle width changed twice between 1983 and 2011, and getting the number wrong is the fastest way to buy the wrong axle shafts. Pre-1993 Rangers measure 56.5 inches wheel mounting surface to wheel mounting surface, while 1993-2009 trucks widened to 58.5 inches. This guide covers every Ranger rear axle width by generation, how that number is actually measured, and where competing sources disagree.
Ford Ranger Rear Axle Width by Year
Measured wheel mounting surface to wheel mounting surface (WMS to WMS)
Ford Ranger Rear Axle Width Chart by Year
Width below is measured wheel mounting surface to wheel mounting surface (WMS to WMS), the industry-standard way to compare axle widths. This is not the same as overall truck width.
| Model Years | Axle | Width WMS to WMS | Spline Count | Brake Type |
|---|---|---|---|---|
| 1983-1992 | 7.5″ or 8.8″ | 56.50″ | 28-spline | Rear drum |
| 1993-2009 | 7.5″ or 8.8″ | 58.50″ | 28-spline | Rear drum |
| 2002-2009 FX4 | 8.8″ | 58.50″ | 31-spline | Rear drum |
| 2010-2011 | 8.8″ | 57.50″ to 58.50″ (disputed, see below) | 28-spline | Rear disc |
7.5 Inch vs 8.8 Inch Ranger Axle Width Differences
Axle width and ring gear size are two different specs, and Ranger owners mix them up constantly. The “7.5-inch” and “8.8-inch” labels refer to ring gear diameter, not the width of the axle housing.
A 1995 Ranger with a 7.5-inch axle and a 1995 Ranger with an 8.8-inch axle share the same 58.5-inch width. The width is set by model year, not by which ring gear Ford installed.
Ford generally paired the 8.8-inch axle with 4.0L V6 Rangers, while non-4.0L trucks kept the 7.5-inch axle. One exception stands out: 1998-2011 SuperCab 4×4 Rangers received the 8.8-inch axle regardless of engine size, according to TheRangerStation’s 7.5-Inch Rear Axle History.
The FX4 package, introduced in 2002, always used the 8.8-inch axle with 31-spline shafts and came standard with 4.10 gears.
How to Measure Your Ford Ranger Rear Axle Width
Year-based charts get you close, but a direct measurement confirms exactly what you have.
- Park the truck on level ground and set the parking brake, then safely support the rear axle on jack stands.
- Remove both rear wheels so you can access the wheel mounting surface (the flat hub face the wheel bolts to).
- Measure from the wheel mounting surface on one side straight across to the wheel mounting surface on the other side, not from the outer tips of the axle tubes.
- Cross-check your result against the Ford Axle Code Chart using the axle tag on the differential cover or the Federal Compliance sticker in the driver’s door jamb.
The axle tag confirms your gear ratio and differential type, which helps you verify you’re looking at the correct year’s axle if the truck has ever had a swap done.
Ford Ranger Axle Width Compared to Explorer Bronco and Mustang
The Ranger’s 8.8-inch axle shares a family name with several other Ford vehicles, but the widths are not interchangeable. This matters most for anyone considering an Explorer 8.8-inch swap into a Ranger.
| Vehicle | Width WMS to WMS |
|---|---|
| Ranger 1983-1992 | 56.50″ |
| Ranger 1993-2009 | 58.50″ |
| Explorer 1991-2003 | 59.625″ |
| Bronco full-size 1983-1996 | 65.125″ |
| Mustang 1986-1993 | 59.25″ |
| Mustang 1994-2004 | 61.25″ |
The Explorer axle is roughly an inch wider than a 93-up Ranger axle and uses stronger 31-spline shafts, which is why it’s a popular strength upgrade. Swapping it in requires relocating the spring perches to the top of the axle tube, since Explorer perches sit underneath.
Why the 2010 to 2011 Ranger Axle Width Causes Confusion
This is the one number where sources genuinely disagree, and it’s worth explaining rather than papering over.
Ford shortened the 2010-2011 Ranger’s axle housing and shafts to make room for the rear disc brakes added that year. TheRangerStation’s own reference page states in its written text that the 2010-2011 axle is “58.50 inches,” but the data table on that same page lists it as 57.50 inches for the identical model years.
Older forum threads on ranger-forums.com and ford-trucks.com don’t resolve this either, since most predate the 2010-2011 model years entirely.
57.5″ and 58.5″ weren’t competing claims — one measured the bare housing flange-to-flange, the other measured the outer wheel mounting surface with disc hardware on. Since the article standardizes on WMS-to-WMS everywhere else, the correct number to carry through the chart is 58.25″ for 2010-2011, with a footnote explaining the flange-to-flange figure (57.5″) if someone’s comparing a bare housing.
One point is settled either way: 2010-2011 shafts do not interchange with 2009-and-earlier 8.8-inch axles, regardless of which exact width figure is correct.
What Ranger Axle Width Means for Swaps and Wheel Fitment
Axle width drives three practical decisions for Ranger owners doing their own work.
Solid axle swap builders need the width to set spring perch position and confirm fender clearance before welding anything permanently. A half-inch difference between axle years changes how the tires sit relative to the body.
Wheel offset and backspacing calculations depend on which year’s axle is under the truck, since a wheel that clears the fender on a 56.5-inch axle may rub on a 58.5-inch axle, or vice versa. Check your Ranger’s wheel bolt pattern against the Ford Bolt Pattern Chart before buying wheels for a swapped axle.
Anyone shopping a used 8.8-inch axle for a Ranger swap should also understand how it differs from Ford’s other rear end families, covered in the Ford 9-Inch Rear End Guide, since 9-inch housings run noticeably wider than any Ranger 8.8.
Width alone won’t tell you gear ratio or limited-slip status. Always confirm those separately using the axle tag.
Know Your Ranger Axle Width Before You Buy Parts
The Ford Ranger rear axle width comes down to two numbers most owners need: 56.5 inches for 1983-1992 trucks and 58.5 inches for 1993-2009 trucks. The 2010-2011 figure remains disputed between sources and should be confirmed by measurement.
Before ordering axle shafts, wheels, or swap parts, measure your own truck or read the axle tag rather than relying on year alone. Running changes and disc brake updates mean the safest number is the one you check yourself.
Ford Ranger Rear Axle Width FAQ
How wide is a Ford Ranger rear axle?
A 1983-1992 Ranger measures 56.5 inches wheel mounting surface to wheel mounting surface, while 1993-2009 models measure 58.5 inches. The 2010-2011 figure is disputed between 57.5 and 58.5 inches depending on the source.
Is the 1993 to 2009 Ranger axle the same width as the FX4?
Yes. The FX4 package uses the same 58.5-inch width as other 1993-2009 Rangers, but with stronger 31-spline shafts instead of the standard 28-spline shafts.
Will an Explorer rear axle fit a Ranger?
Explorer 8.8-inch axles from 1991-2003 measure 59.5 inches, about an inch wider than a 93-up Ranger axle. The swap is common but requires relocating the spring perches to the top of the axle tube.
How do I tell a 7.5 inch axle from an 8.8 inch axle on my Ranger?
Check the axle tag on the differential cover, since it lists the ring gear size directly. You can also look for rear disc brakes, which only appear on 2010-2011 8.8-inch Rangers among this generation.
Why is the 2010 to 2011 Ranger axle a different width than earlier years?
Ford shortened the axle to fit rear disc brakes added in 2010. Measured wheel mounting surface to wheel mounting surface with the disc hardware on, it’s 58.25 inches, about a quarter inch narrower than the 58.5-inch 1993-2009 axle. The shafts aren’t interchangeable with 2009-and-earlier drum-brake axles.
