On Sale
ARB Air Locker — Toyota 8.9" Rear, 32-Spline, 12-Bolt Ring Gear — 2016–2023 Toyota Tacoma — RD232
$1,299.95$1,030.00
In stock
4x4 Accessories
ARB Air Locker — Sterling 10.25" / 10.5" Rear, 35-Spline — 1999–2016 Ford F-250 / F-350 Super Duty — RD140
$1,399.95$1,110.00
Buy 2+ · Save 10%Every order · Save 5%Brand New
Confirmed Compatibility
Axle Sterling 10.25-10.50 in, rear, 35-spline, 1.50 in axle shafts, all gear ratios. ARB application list: Ford F-250 Super Duty 1999–2016; Ford F-350 Super Duty 1999–2016; Ford E-350 Super Duty 1999–2015; Ford E-250 2003–2014; Ford E-150 2003–2010; Ford E-350 Club Wagon 2003–2005; Ford Excursion 2000–2005; Ford E-150 Club Wagon 2003–2005; Ford E-350 Econoline Club Wagon 1997–2002; Ford E-150 Econoline Club Wagon 2000–2002; Ford E-150 Econoline 2000–2002; Ford E-250 Econoline 1997–2002; plus 4 further applications on ARB's list. Check your axle tag and gear ratio before ordering.
Condition
Brand New
Mileage
0 Miles
Warranty
ARB 5-Year Warranty
Fitment
Axle Sterling 10.25-10.50 in, rear, 35-spline, 1.50 in axle shafts, all gear ratios. ARB application list: Ford F-250 Super Duty 1999–2016; Ford F-350 Super Duty 1999–2016; Ford E-350 Super Duty 1999–2015; Ford E-250 2003–2014; Ford E-150 2003–2010; Ford E-350 Club Wagon 2003–2005; Ford Excursion 2000–2005; Ford E-150 Club Wagon 2003–2005; Ford E-350 Econoline Club Wagon 1997–2002; Ford E-150 Econoline Club Wagon 2000–2002; Ford E-150 Econoline 2000–2002; Ford E-250 Econoline 1997–2002; plus 4 further applications on ARB's list. Check your axle tag and gear ratio before ordering.
Quantity
$1,399.95$1,110.00
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Stock StatusIn Stock
BrandARB
What you see is what you get — exact item, as pictured. Want it upgraded? We’ll refurbish it to your spec.
ARB Air Locker RD140 for the Sterling 10.25 in / 10.5 in Rear, 35-Spline — 1999–2016 Ford F-250 / F-350 Super Duty.
An ARB Air Locker is a selectable locking differential. Flick the dash switch and compressed air locks the differential gears, so both axle shafts turn with the ring gear and each wheel gets full drive. Switched off, it behaves like a normal open differential, so on-road driving and driveline wear are unaffected.
ARB's two-piece design has few moving parts, a patented timed locking mechanism for strength and fast unlocking, and a steel-reinforced elastomer-bonded seal built for temperature extremes. It can be engaged at any speed.
The kit includes the Air Locker differential, activation switch, solenoid valve, air line and bulkhead fitting. It needs an air compressor to operate, sold separately; ARB's own compressors are listed in this category. Fitting means removing the carrier and setting up the ring and pinion, so it's a job for a workshop with differential experience.
ARB matches each Air Locker to an axle, spline count and, for some axles, a gear-ratio range. Check your axle tag against the specifications below. The vehicle list is ARB's own application table for RD140.
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