If you've cross-shopped Sasquatch-equipped Broncos, you've run into the term "locking differential" on nearly every trim comparison and spec sheet. It's one of the single biggest differences between a Bronco that gets stuck the moment one tire lifts off the ground and one that keeps moving. This post covers what a locking differential is, why it matters more than most other off-road specs, and where you'll find one across the Bronco lineup.
In This Guide
What Is a Locking Differential?
A locking differential is a mechanism that forces both wheels on the same axle to spin at exactly the same speed, regardless of how much traction each wheel has. Unlike a standard open differential, which sends power to whichever wheel has the least resistance, a locking differential guarantees both wheels get equal power even if one is fully off the ground.
That distinction matters most in situations most drivers never think about until they're stuck: one tire hanging in the air over a rut, or spinning freely on ice while the other tire sits on solid ground with plenty of grip. An open differential sends nearly all the engine's power to the wheel with the least resistance, which in a stuck scenario means the wheel that isn't touching anything usable. A locking differential removes that failure point by forcing both wheels to turn together.
Why Is a Locking Differential Important?
For anyone who takes a Bronco off pavement regularly, a locking differential is the difference between driving around an obstacle and getting stuck on it. Front and rear locking differentials working together let a Bronco maintain traction diagonally across the vehicle, not just side to side, which matters on uneven terrain where opposite-corner wheels lose contact with the ground at different times.
This isn't a minor convenience feature. Ford built the Sasquatch package's front and rear locking differentials specifically because an open differential setup, even paired with good tires, runs out of capability on the kind of technical terrain Bronco owners regularly seek out.
Locking Differentials on the Ford Bronco
Sasquatch-equipped Broncos come standard with both a front and rear electronic locking differential, engaged through the GOAT Modes dial rather than a separate manual switch. Rock Crawl mode automatically engages the rear locker for slow, technical climbing. Non-Sasquatch Broncos run an open front differential and, depending on trim, either an open or limited-slip rear differential, without the locking function at all.
The Raptor carries the same front-and-rear locking setup as Sasquatch, paired with its wider track and long-travel suspension, since sustained high-speed desert running puts wheels in the air more often than slow trail crawling does. For the full picture of what else Sasquatch adds beyond the differentials, see our complete Sasquatch package guide.
Locking vs Limited-Slip Differential
A limited-slip differential is a middle ground between open and locking. It uses clutch packs or a gear-based mechanism to send more power to the wheel with traction when there's a speed difference between the two wheels, but it doesn't force both wheels to spin at exactly the same speed the way a true locker does.
Limited-slip helps in mild slip situations, like one wheel spinning slightly faster on wet pavement, but it doesn't guarantee power gets to a wheel that's fully off the ground the way a locking differential does. For daily driving and light trail use, limited-slip is often enough. For technical rock crawling or sustained off-camber terrain, it isn't a substitute for a true locker.
The takeaway: if serious off-road capability matters more to you than daily driving refinement, a Bronco trim with front and rear locking differentials, Sasquatch or Raptor, closes a capability gap that no tire upgrade alone can fix.
FAQ
Does every Ford Bronco have a locking differential?
No. Only Sasquatch-equipped trims and the Raptor come standard with front and rear locking differentials. Non-Sasquatch trims run an open front differential and an open or limited-slip rear, depending on configuration.
Which GOAT Mode engages the rear locking differential?
Rock Crawl mode automatically engages the rear locker for slow, technical climbing. Other GOAT Modes leave the differentials in their standard behavior for that terrain type.
What's the difference between a locking and limited-slip differential?
A limited-slip differential sends more power to the wheel with traction when speeds differ slightly, but doesn't force both wheels to spin equally. A locking differential guarantees equal power to both wheels on an axle even if one is completely off the ground.
Do I need a locking differential for daily driving?
No. Locking differentials are built for low-traction off-road situations rather than everyday pavement driving, and most daily drivers never notice the difference on a commute.
Curious how the rest of Sasquatch's off-road hardware compares to a standard Bronco? Read our Sasquatch vs non-Sasquatch breakdown.
About This Guide
This was put together by the team at Bronco Forge. Our founder spent time as a Ford salesman before launching Bronco Forge, giving us firsthand knowledge of how Broncos are sold, what buyers get wrong, and what dealers don't always tell you. We sell aftermarket parts exclusively for the Ford Bronco and spend time in Bronco owner communities tracking what owners experience. Questions about fitment or anything Bronco-related? Reach out at contact@broncoforge.com or (909) 772-8050.
