Differential lockers

Did you know that we - apart from the presumably largest offering of lockers in Europe - have an extensive portfolio regarding special duty vehicles, engineering & consulting and hydraulic equipment?

If you'd like information or a quotation we do need ALL informations on the vehicle as follows:

ring gear dia
axle type
Axle spline count
axle diameter
axle gear ratio
engine
tranny type
gearbox type

If possible please also state your vehicle's application (daily driver, trailer operation, offroad / which percentage / which terrain, multiple drivers a.s.o.).

Without this information it's often impossible to select and quote the right locker and we have to ask you anyway.

We are able to specially manufacture difflockers for almost any 4x4!

A few explanations to make your decision easier

• alike LockRight, but more rugged

Model	PowerTrax LockRight	Detroit Locker Kaiser Locker	Detroit TrueTrac, Torsen and Quaife	ARB AirLocker
Mounting	• Can be fitted by a mechanic from within 2-3 hours (depends on vehicle) • no re-adjustment neccessary most often	• Diff has to be dismantled • special tools may be neccessary • Gears need re-adjustment	• Diff has to be dismantled • special tools may be neccessary • Gears need re-adjustment	• Diff has to be dismantled • special tools may be neccessary • Gears need re-adjustment • compressor is needed
Quote / material	• Let us prepare a quote for you! • Material: Oil, maybe gaskets	• Let us prepare a quote for you! • Material: Oil, maybe gaskets	• Let us prepare a quote for you! • Material: Oil, maybe gaskets	• Let us prepare a quote for you! • for 1 or 2 axles • needs compressor
Application	• heavy Offroad, rear axle • front axle only aif rig is equipped with free-wheel-hubs or middle differential • mud, general offroading	• heavy Offroad, rear axle • front axle only aif rig is equipped with free-wheel-hubs or middle differential • trial, rallye, rocks, hills, mud	• light Offroad, both axles • everyday-use, desert, sand, trailer	• heavy Offroad, front and rear axle • everyday-use, desert, sand, trailer, mud
Advantages	• automatically supplies maximum power to wheel with best traction • no thinking before, within or after OR-trips, the locker is active whenever you need it!	• Limited Slip Differential without friction disks or springs • no special oil needed • no wear • force is being distributed via gearsets	• manual operation • pressurized air onboard
Disadvantages	• Vehicle might tend to slight sway at the rear when changing power on slippery roads • sometimes clicking noise from the axle (this is normal!)	• gear clearance has to be re-adjusted • everything else alike LockRight	• max. 75% available torque on one wheel • gear clearance has to be re-adjusted	• Locker has to be manually engaged and disengaged • engaging preferred when vehicle is not moving • you need an additional compressor • worn out gaskets lead pressure into gearhousing and press oil out the axle

Why do we recommend automatic Lockers?

We took a close look to the variants of lockers e.g. AirLocker a.s.o. and this is our conclusion:
An automatic locker – especially a Powertrax – offers the best value for money overall, all the more so considering the easy installation.
Automatic lockers do have great advantages when heading into, moving within or leaving offroad trails: no more stopping to (dis)engage the lockers and no risc of heavy driveline-windup due to a pair of forgotten engaged ARB's.
Automatic lockers are there when you need 'em. No more thinking '..how hard is this trail to get?' or '...did I already engage the locker?. The force is being directed right where you need it: to the wheel with the best traction. Fully automatic.
Automatic lockers are maintenance-free. There are no additional gaskets or wearable parts. The diff housings don't need to be drilled or machined in any way.

Frequently asked: do I need a locker if my vehicle has good articulation? Two answers:

1) if you can afford the time we may show you live what a locker is worth in case you just got flex.
2) If you are satisfied with your vehicle's flex you most probable are using it in dry and even terrain. In this case you'd better leave the usage to this scenario unless you have another vehicle with you.

Good articulation cannot replace a locker – we are happy to show you the difference on a test drive.

KAISER automatic locking Differentials

KAISER Locker
automatic locker

KAISER lockers are full automatic 100% locking rugged yet smooth operating locking differentials.

The most important detail regarding this line of lockers is the sophisticated clutch / coupling behaviour. A thorough designed mechanical outer and inner clutch ring together with steel roller bars allows for better control of the coupling / uncoupling mechanism thus improving drive comfort and performance. Additionally a lager contact area allows for improved torque transfer throughout the differential.

We recommend ADDINOL GH 75W-140 as lubricant for this locker.

Complete application chart is available for the following vehicles:

Ford
- Troller
- Jeep Willys (CJ3 - CJ5)
- F75 (Pick up)
- Maverick
- F250 - F350 - F4000
Jeep
- Cherokee Sport
- Grand Cherokee
- Wrangler
Isuzu Trooper
KIA Sportage (front)
Land Rover
- Defender 90
- Defender 110, 130
- Discovery
- Discovery II
- Range Rover
Mitsubishi
- L200 Outdoor - Sport - Savana
- Pajero TR4
- Pajero IO
- Pajero 3000, 3500
- Montero 3500
Mercedes-Benz
- Sprinter 310 / 312
- G-Class
Suzuki
- Samurai
- Jimny
- Vitara
- Grand Vitara
Toyota
- BJ / FJ40/42/43/45, HJ60/61 (FF)
- FJ 80 (FF)
- Hilux (FF)
- FJ Cruiser (FF)
Volkswagen
- Golf
- Saveiro
- Parati
- Santana

Get the complete catalogue HERE.

Powertrax Automatic Lockers

Powertrax develops, produces and delivers high-output 100% positive locking automatic Lockers for a wide range of applications.

The Lock-Right's and NoSlip's operation is fully automatic. Designed to send the engine power to the wheels with the most traction, the Lock-Right will help get you where you want to go.

We can offer you a test drive with our own Land Cruiser HJ60 equipped with both front and rear Lockrights!

We recommend ADDINOL GH 75W-140 as lubricant for this locker.

Application lists and installation notes for AMC, Buick, Cadillac, Chevrolet, Chrysler, Dodge, Ford, GMC, Honda, IHC, Isuzu, Jeep, Lexus, Lincoln, Mazda, Mercury, Nissan, Oldsmobile, Plymouth, Pontiac, Suzuki and Toyota are available on request. Manufacturer: powertrax.com

Powertrax Lock-Right, exploded view: coupler, spacer, driver

Auburn ECTED LSD-100%-combined Locker

Auburn ECTED,
LSD & 100% manual Locker

The Auburn ECTED is a unique combination of LSD and manually activated 100% Locker.

This locker provides the advantages of both smooth everyday ride with LSD traction support and the capabilities of a 100% fully manually controlled Locker.

By flipping a switch you easily change from LSD to 100% locked diff. Electrically - no compressors, hoses and such needed!

Auburn ECTED locking differential, exploded view

Lists of applicable brands, makes and models available as PDF-Download

AMC
Buick / Oldsmobile / Pontiac
Chevrolet / GMC
Corvette
Ford
Toyota LandCruiser

Detroit Lockers and LSDs (EATON)

EATON is the manufacturer of the Detroit series of locking differentials and LSDs.

We recommend ADDINOL GH 75W-140 as lubricant for these lockers. The manufacturer's complete application lists are available as a PDF download.

Detroit Locker – automatic 100% locker

The Detroit Locker is a complete 100% positive locking automatic differential. Whichever wheel requires the most power gets it – up to 100% of the torque.

Available for, among others:

Chevrolet / GMC
Dodge / Plymouth
Ford
Hummer
Isuzu (auch Opel Frontera = Isuzu Rodeo)
Jeep
Land Rover
Nissan
Saab
Suzuki
Toyota
VW Taro (= HiLux)

Information: larger picture

Detroit TrueTrac – torque-biasing differential

The TrueTrac is different: it delivers up to a maximum of 75% of the available power to either wheel and therefore acts like a limited slip differential (LSD). The power is distributed by helical gear sets – there are no clutches or friction material and no need for special LSD oil.

Available for, among others:

Chevrolet / GMC
Dodge / Plymouth
Ford
Hummer
Isuzu (auch Opel Frontera = Isuzu Rodeo)
Jeep
Land Rover
Saab
Toyota
VW Taro (= HiLux)

Detroit E-Z Locker

The E-Z Locker keeps the wheels locked together (except when turning), so that the left and right wheels always deliver maximum traction to the ground; neither wheel can spin out. In a turn it disconnects the faster-moving wheel (usually the outside wheel) and drives the vehicle with the inside wheel.

Similar to the Powertrax Lock-Right (see above), the E-Z Locker is a good choice for demanding off-road use and is easily installed by the mechanically inclined. Key features: fewer parts, re-uses many conventional differential parts.

Available for, among others:

Chevrolet / GMC
Dodge / Plymouth
Ford
Isuzu (auch Opel Frontera = Isuzu Rodeo)
Jeep
Suzuki
Toyota
VW Taro (= HiLux)

Detroit Gearless Locker

For Dana 30, Dana 44 and AMC 20 axles.

Works like the E-Z Locker, but smoother and quieter – no gear teeth. Easily installed.

Available for, among others:

Chevrolet / GMC
Dodge / Plymouth
Ford
Isuzu (auch Opel Frontera = Isuzu Rodeo)
Jeep
Suzuki
Toyota

EATON ELocker – electrically actuated 100% locker

Electrically actuated 100% locker – pushbutton operation, no compressor needed!

Available for, among others:

GM
Chevrolet / GMC
Dodge / Plymouth
Ford
Hummer
Isuzu (auch Opel Frontera = Isuzu Rodeo)
Jeep
Saab

Q-F Torsen-Lockers

QUAIFE ATB Automatic Torque Biasing Unit

This is a proven reliable series of Automatic 'lockers' (i.e. torque distribution) for offroad and standard vehicles as well as light utility vehicles and trucks!

These lockers need no maintenance or special 'LSD'-type oil.Outstanding performance offroad or on race tracks. Very good controllable driving behaviour. We recommend ADDINOL GH 75W-140 as lubricant for this locker.

Also available for Land Rover / Range Rover Central Differential!

Available for:

Alfa Romeo 156 V6, 164 / 155
Alfa Romeo 145, 147, 155, 156 2000
Alfa Romeo 146 1800
AudiCoupe GT, Quattro
Audi (Front), A4 2WD & Quattro
Audi A3 1.8 / 1.8T / TDI
Austin Healey 3000 & Sprite
BMW 2002
BMW 3er-Serie (E30,E36, auch M3)
BMW 5er-Serie (E28,E34, E39, auch M5)
BMW 6er-Serie 633–635csi
BMW 7er-Serie 735i
BMW Z3 6 cylinder
Chrysler Viper V10
Dana 44 Dodge Neon, Avenger, Stratus
Fiat Tipo 2000 16-valve
Fiat Bravo HGT
Fiat Coupe (non-turbo)
Fiat Uno Turbo 1372 (1988 onwards)
Fiat Punto HGT 1.8 &t Punto GT 5-gang
Ford 9”
Ford Atlas (Capri or ZF spline)
Ford Atlas ZF spline (Pad type)
Ford Cortina MK3,4 & 5
Ford English
Ford Escort / Sierra 6,5” 4X4, 7", 7,5", 9"auch Cosworth
Ford Escort / Fiesta / Focus / Ka / Puma
Ford Explorer (4x4) front
Ford MT75 Center-Diff
Ford MTX 75 / Contour (USA) / Focus / Mondeo / RS2000
Ford Mustang 8.8” & independent suspension
Ford Probe GT V6
Honda Civic / CRX
Honda Accord, Prelude
Isuzu Piazza / Impulse
Land Rover Freelander
Land Rover / Range Rover Center-Diff
Land Rover 110 (Salisbury rear axle)
Lotus Elan, Elise, Elite Climax, Europa 4&5 speed
Mazda 626 (FWD) / Protégé
Mitsubishi Eclipse / Talon 4X4 (centre and front)
Mitsubishi Pajero / Shogun (IRS rear)
Nissan R180 240–280Z / R200 280–300Z
Nissan Maxima / Primera SR20DE, Sentra SER, NX2000, 200SX SER, Infiniti G20
Opel Manta / GT / Ascona
Opel Astra / Astra OPC
Opel Calibra / Corsa / Corsa OPC
Opel Vectra / Vectra OPC
Peugeot 205 / 306 / 309 Gti, 405 Mi 16 / 505
Porsche 911 / 901 / 915 / 924 / 944 / G50 / 996
Porsche Boxster bis '98, Cayman
Renault 30 / Alpine (UN1 gearbox)
Renault 5GT turbo
Renault Clio Sport 172 and 182
Seat Ibiza
SEAT Leon FR (197bhp)
SEAT Leon Cupra (237bhp)
Skoda Octavia
Skoda Octavia vRS 2.0-litre TFSI (197bhp)
Subaru Impreza / Legacy
Toyota 2000 Celica
Toyota Corolla
Toyota MR2
VW Beetle (new) Golf / Corrado / Jetta / Passat / Vento / Scirocco
Audi A3 2.0-litre TFSI Sport (197bhp)
Audi A3 Sportback 2.0-litre TFSI (197bhp)
Volvo (diverse)
VW Golf GTi Mk5 (197bhp)
VW Golf GT TDI (170PS)
VW Golf 1.4 TSI GT (170PS)
VW LT28 / 31 / 35

Utility Vehicles*:

*available only in batches 10 or more per order!

Yes, that's the way it is. Please don't ask for single pieces. We have no stock. We won't answer those requests anymore.

Citroen C25
Fiat Ducato
Iveco-Ford P100 (all models)
Transit up to and from 120 / 140
Transit new model, front-wheel drive
Transit (new twin & single)
Iveco Daily 40-10
LDV Pilot (200 series) Convoy (400 series)
7.5 ton truck (4x4)
Mercedes Sprinter & Lkw
Peugeot Boxer (ME5TU gearbox only)
J5
Renault Master
Talbot Express
Toyota HiLux
Volkswagen LT28 / LT31 / LT34
other vehicles upon request (10 pcs. MOQ)

ARB AirLocker

Manual 100% Locker

ARB is the manufacturer of the famous AirLocker.

The 'AirLocker' is a complete 100% locking manual actuated differential.

The locking ring gets shifted into gear due to pressurized air which is supplied by an onboard compressor.

In open mode this locker is a true open diff with a smooth and even distribution of torque to the wheels on firm ground.

Available for the following makes, among others (application list on request):

Chevrolet / GMC
Chrysler
Dodge / Plymouth
Ford
Hummer
Isuzu
Jeep
Land Rover
Mahindra
Mazda
Mitsubishi
Nissan
Ssang Yong
Suzuki
Toyota / Lexus
VW Taro (= HiLux)

LSD additive

Improves operation of friction-type LSDs. Can be used together with standard gearbox oil usually not suited for LSDs - usually such oil will render your locker useless.

Simly add 2% of the additive to regain your locking capability. Comes in bottles of 100ml for 2l of gear oil suitable for 1 axle up to 5% addon.

Note: worn out or broken LSDs cannot be restored with this additive!

Note: :
Used engine or gearbox oil is a dangerous substance. The user is required to treat and dispose this substance as required by regulations. We accept the amount of delivered oil for correct disposal if sent free of charge to us.

Please send orders and enquiries by email.

Email Power-Trax