Skip to main content
Free shipping
Shipping within 24h
30 days money back guarantee
Purchase comfortable on account
Hotline +49(0)7223-800130-0

Pneumatic 100% differential lock

Product information "Pneumatic 100% differential lock"

Pneumatic 100% differential lock for Defender and Discovery 1.

There are many types of 100% differential locks for Landrover vehicles, but all seem to have a weak point in the design. The ASC differential lock has been tested by us over many years in extreme conditions.

Offroad differential lock for Land Rover vehicles

This is a perfectly designed 100% pneumatic differential lock. It can be mounted in the original Land Rover differential housing with minimal installation effort, i.e. without modifications to the axle housing. An electric differential lock and is significantly less reliable than a good accurately machined pneumatic version. One of the main requirements of the ASC lock, is absolutely no pressure loss, as this is one of the main problems with other air operated pneumatic locks. To achieve this, a static piston has been used instead of a rotating seal, which has been used in other valves and tends to leak in 80% of all assembled valves. The ASC lock was also made sure to have a full 6 mm engagement when locked, as other air locks are only 2.5 mm and can slip out of lock engagement when loaded.

The final design was eventually based on a 4 pin differential center, this is a heavy duty variant of the original Land Rover differential. This has a 2 pin differential center in comparison and is therefore much weaker balanced. One of the differential side gears has an outer ring of claw teeth to engage the lantern ring when locked, so the lantern ring is crown wheel side. The lantern ring is held in place with 4 pins that pass through the diff center Non crown gear side. Outside the diff center, the 4 pins are connected to a steel thrust ring. This assembly forms a sturdy steel cage, not plastic like other designs that tend to fail.

Technical description and function

On the non-rim end of the journal end cap is a cylinder that houses a bronze piston. The piston has a groove around the inside and outside diameters into which O-rings are inserted. Once the piston is assembled, a retaining ring is threaded around the stud End of cylinder To keep the piston from exiting, air is supplied to the cylinder through a copper tube to a 90-degree ferrule that fits the outside diameter of the cylinder. When air is applied, the piston moves along the cylinder until it reaches the retaining ring. The cylinder does not rotate, the cylinder is stationary and sits on a bronze bushing on the side of the diff center. Inside the sleeve bearing on the cylinder side is a bronze thrust ring to hold the cylinder in place. A locking tab is attached to one of the bolts on the bearing journal cap and is located in a recess in the cylinder to stop rotation.


Information

  • Defender 90 - 1993 to front & rear axle
  • Defender 110 - 1993 to front axle
  • Discovery 1 - 1993 - 1998 Front & Rear Axle
  • Range Rover Classic - 1993 - 1996 Front & Rear Axle

Zubehör

Reinforced homokinetic set for Land Rover Defender (RM 1350-1400MM²)
Reinforced homokinetic set for Land Rover Defender The reinforced homokinetic joint set for the Land Rover Defender has also been developed and manufactured in Germany for the greatest loads in working or off-road use. The most common damage in very heavy duty Land Rover Defender is the breakage of the constant velocity joint on the front axle. Especially in heavy work applications, off-road driving, expedition vehicles with heavy weight and trailer operation. Applications for reinforced driveline of the Land Rover Defender Heavy expedition Land Rover Defender with 100% differential locks have this damage pattern of broken constant velocity joint very often. The additional high weight of the expedition Defender due to vehicle equipment such as luggage, water tanks, tools and spare parts and the use of differential locks cause the homokinet in the ball hub to break at the slightest driving error. The ball hub of the ENGAGE4X4 Heavy Duty constant velocity joints is made of the toughest material used in driveline construction (S155). The special design of the ball hub emphasizes the stability of the ENGAGE4X4 constant velocity joints. All ENGAGE4X4 reinforced constant velocity joints and drive shafts (thru axles) are exclusively manufactured in Germany. The use of high-strength special steel and special manufacturing processes make ENGAGE4X4 products extremely stable and extremely durable even under the toughest conditions. Areas of application:Off Road, Trophy, Rally Raid, Protected Vehicles, Expedition Vehicles Information Material: 41CrV4 / S155 Load capacity: (RM 1350-1400MM²) Manufacturer Standard: ISO:9001 & TS:16949 Suitable for Defender, Discovery 1, with & without ABS

€1,199.00*
Removable axles for Land Rover Defender in reinforced version (rear axle)
ENGAGE4X4 reinforced thru axles rear axle for Defender ENGAGE4X4 stub axles for the Land Rover Defender are reinforced and manufactured in Germany. The load on the drivetrain of the Land Rover Defender is very high in some applications, so broken half shafts in the axle can easily occur. Drive train weak point on the Land Rover Defender Especially in vehicles with high payloads such as; work vehicles, trailer operation or heavy expedition vehicles in desert terrain. The slightest driving error can damage the stub axles or the homokinetic constant velocity joints of the Land Rover Defender. ENGAGE4X4 stub axles are designed to be approximately 42% stronger than original Land Rover driveshafts. Information Material: 41CrV4 (US. 4340 Aerospace) Tensile strength: RM 1380-to 1450N/mm² Suitable for Defender, Discovery 1 from 1994 > (Defender 90 / 2003 > Defender 110 / 130)

€829.00*
Thru axles for Land Rover Defender in reinforced version (front axle)
ENGAGE4X4 thru axles front axle ENGAGE4X4 thru axles for the Land Rover Defender are reinforced and manufactured in Germany. The load on the drivetrain of the Land Rover Defender is very high in some applications, so broken half shafts in the axle can easily occur. Especially when using heavy trailers and the application of differential locks. Drive train weak point on the Land Rover Defender Especially in vehicles with high payloads such as; work vehicles, trailer operation or heavy expedition vehicles in desert terrain. The slightest driving error can damage the stub axles or the homokinetic constant velocity joints of the Land Rover Defender. ENGAGE4X4 stub axles are designed to be approximately 42% stronger than original Land Rover driveshafts.Information Material: 41CrV4 (US. 4340) Tensile strength: RM 1380-to 1450N/mm² Suitable for Defender, Discovery 1 1994>

€689.00*
Only 1 available
Wheel hitch Defender reinforced with screw cap
Colors: black powder-coated
Reinforced wheel hitch Land Rover Defender Heavy duty wheel hubs for Land Rover Defender with screw cap. For vehicles that are used under adverse conditions in the terrain, work or trailer operation. The screw cap reliably prevents the ingress of dirty water when driving through water and protects the wheel bearings from damage. Durability for off-road and long-distance travel A reliable drivetrain is especially important for long-distance travel and expeditions and off-road use. Reinforced CNC milled wheel drivers also protect the gearing of the drive shafts and thus extend durability. Heavy Duty wheel drivers made from 41CRoMoV5 are more accurately manufactured and wear out more slowly. The better fit reduces load-shedding in the driveline. Information Fits all Defender from 1994 > 2016 Material 41CroMoV5 Surface black powder coated or yellow galvanized

Variants from €67.90*
€89.90*
Special Bolt Set for Wheel Driver Geomet Coated 10.9
Wheel hitch bolt set non-rusting for all Defender Geomet coated. The screws of the wheel drivers of the Land Rover Defender rust after every winter and it just doesn't look nice anymore. Stainless steel bolts unfortunately cannot be used at this point for various reasons. We have now had a special set of screws manufactured with a high quality Geomet coating with a 465 hour salt spray test. In comparison normal galvanized screws have 120 hours. The original Land Rover screws burnished about 50 hours. The strength class (quality) corresponds to the prescribed original Land Rover screws of 10.9, the yield strength is over 900 Nm. The bolts are manufactured in the EU. Wheel driver bolts Defender Geomet Included in delivery are 20 special screws for all 4 wheel drivers and 1x 3 ml threadlocker "medium strength". Information Screw M10x45 Surface Geomet 500A Grade 10.9 Yield strength 900 Nm

€59.90*
Shoulder bearing Land Rover OEM quality Defender, Discovery 1 and Range Rover Classic
Shoulder Bearing Defender all as well as Discovery and Range Rover Shoulder bearing Land Rover differential suitable for front & rear axle in OEM quality OEM quality original equipment manufacturer Suitable for Discovery 1, Defender all, Discovery 2, Range Rover Classic

€22.50*
Only 2 available
ARB Axle & Transmission Bleeding Kit for all off-road vehicles
Specially designed for vehicles with pneumatic differentials or ARB Air Lockers. The compact and lightweight design with so-called push-in connections facilitates installation. At the four bleed holes can also be connected, for example, gearbox & transfer case. The mounting is done with M6 bolts / screws. The ARB axle breather kit should be mounted in the engine compartment at the highest point. Axle Breather for Land Rover Defender (not vehicle specific) The splash proof air filter is with a washable sintered bronze filter. The high performance oil, water and heat resistant 8 mm polyurethane hoses reduce the likelihood of oil blockages in the axlesScope of delivery 1 x Anodized aluminum manifold 1 x Air filter 1 x 8mm x 8m polyurethane hose 4 x 8mm-1/8 "BSP connectors 3 x 1/8 "BSP connectors 2 x sheet metal screws 10 x cable ties

€139.00*
Spacer disc wheel for limited slip lock for 110 rear axle
Spacer washer ATB differential P38 rear axle for the installation of the ATB Limited Slip Differential on the Defender 110, 130 and Range Rover P38 you need this spacer so that the ring gear sits in the correct position and so that an optimal adjustment of the backlash can be made. Information Scope of delivery with screws

€129.00*