Dana 60 35 Spline 4.10 Down Ratio TRE 4×4 Air Locker
Reliable shipping
Flexible returns
Experience unbeatable traction and rugged durability with the Dana 60HD 35 Spline 4.10 Down Ratio TRE 4×4 Air Locker. Built to withstand the harshest conditions, this indestructible system ensures your vehicle conquers any terrain with confidence. Elevate your off-road performance and never get stuck again - trust in a package designed for those who demand superior control and reliability.
The TRE Air Locker features a seal housing assembly equipped with a TRE X-Ring. This X-Ring's four-lobed design doubles the sealing surface of a standard O-ring, requiring less compression for an effective seal. This reduced compression minimizes friction and wear, ensuring a reliable and long-lasting air supply to the air locker.
The inclusion of a wave spring significantly enhances the stability and durability of the locking and unlocking mechanism. Its compact design, which fits tightly in radial and axial spaces, is key. Crucially, wave springs are 50% shorter than standard coil springs, eliminating the need for deep spring holes in the clutch gear and thereby greatly increasing its strength.
For maximum durability and performance, the gears are crafted from the strongest 4320 chromoly alloy steel while the case is made from forged 8620 chromoly.
You get complete peace of mind with TRE4x4's 5-year warranty.
This locker is to suit:
| Vehicle/Mode | Axle Location | Year | Axle Description | Shaft Diameter | Spline | Ratio |
| 20/2500 Series, C, G, K, P, Cab Chassis, Pickup, SportVan, Suburban, Rally | Rear | 1975-77 | Dana 60HD | 38.1mm (1.50") | 35 | 4.30 & Down |
| 30/3500 Series, C, K, G, P, RV, Pickup, Suburban, Rally, Sportvan, 2500HD | Front | 1977-90 | Dana 60HD | 38.1mm (1.50") | 35 | 4.30 & Down |
| 30/3500 Series, C, K, G, P, RV, Pickup, Suburban, Rally, Sportvan, 2500HD | Rear | 1975-86 | Dana 60HD, full-float | 38.1mm (1.50") | 35 | 4.30 & Down |
| J20, Medium Truck, J30, Heavy Truck | Rear | 1969-73 | Dana M60-2R | 38.1mm (1.50") | 35 | 4.10 & Down |
| Dodge 100, 150, 200, 250, A, B, D, W | Front | 1988-95 | Dana 60HD, three quarter ton truck | 38.1mm (1.50") | 35 | 4.30 & Down |
| Dodge 100, 150, 200, 250, A, B, D, W | Rear | 1972-82 | Dana 60 | 38.1mm (1.50") | 35 | 4.10 & Down |
| 300, 350, 400, B, C, M, W | Front | 1976-95 | Dana 60HD | 38.1mm (1.50") | 35 | 4.10 & Down |
| RAM 2500, 3500 | Front | 1994-02 | Dana 60 | 38.1mm (1.50") | 35 | 4.10 & Down |
| F250 Pickup, E250 Van (2WD) | Front | 2000 on | Dana 60, full floating | 38.1mm (1.50") | 35 | 4.30 & Down |
| F250 Pickup, E250 Van (2WD) | Rear | 1995-96 | Dana 60, full floating | 38.1mm (1.50") | 35 | 4.30 & Down |
| F350 Pickup, E350 Van (2WD) | Front | 1986 on | Dana 60 | 38.1mm (1.50") | 35 | 4.30 & Down |
| F350 Pickup, E350 Van (2WD) | Rear | 2000-01 | Dana 60 (dual rear wheel axle models) | 38.1mm (1.50") | 35 | 4.30 & Down |
| F350 Pickup, E350 Van (2WD) | Rear | 1988 on | Dana 60, full floating | 38.1mm (1.50") | 35 | 4.30 & Down |
| F450/550 Pickup, Super Duty Van(2WD), E/F350 Dually | Front | 1997 on | Dana 60 | 38.1mm (1.50") | 35 | 4.30 & Down |
You can check compatibility on the TRE 4x4 Application Guide here.
If you're looking for a great deal on two lockers and a compressor, check out our bundles here.