Thread: Electric drum brakes and LR stubs/hubs

Rick

The problem with using LR hubs with electric brakes is that the magnets need a flat surface on the back of the hub face to work.

If you're talking about the Defender Disco 1 PCD, the easiest option is to get an off the shelf solid axle with stubs for parrallel (Land Cruiser) bearings and order in the hub/drum assemblies (they are one piece) to suit Land Rover PCD, which are an option.

What they don't have is M16 studs but 7/16" AF, you can resolve that by drilling the stud holes for M16 studs which you can get ex-Land Rover or Land Cruiser.

Diana

What I was initially thinking is adapting the electric drum (machined to suit) to the rear face of the LR hub, where the disc used to be. Have a suspicion that clearance from hub to stub, and stub mounting dia, may see that easier said than done tho.

Originally Posted by Rick1970

Looking at tube axle, with LR stubs/hubs, coils and either LR radius rods/panhard or 4 link at this stage. Failing that, falcon or cruiser leaves.

when you say tube axle do you mean a land rover housing? if not than I suggest a solid axle. a solid axle with flanges to suit the stubs will be a custom made job, your standard trailer axle manufacture will not want to know you. stubs from a sals is your only option.....well easiest from a machine point of view.

if you eventually want to go electric over hydraulic than why not set up for hydraulic override disc first than when funds are available purchase the hydraulic pump. drum brakes are just so yester year.

the only new components I purchased were disc's, seals and brake pads. the stubs, hubs, callipers and bearing were all second hand.

I have a thread on here somewhere for my electric over hydraulic set up........

I'd like to do as you have Kelvin, but as I have independent suspension on mine I can't see an easy way to do it. Was thinking machine the axle down so the rover spindle slides over it and weld, but I can't remove my axles

Originally Posted by Vern

I'd like to do as you have Kelvin, but as I have independent suspension on mine I can't see an easy way to do it. Was thinking machine the axle down so the rover spindle slides over it and weld, but I can't remove my axles

I'm kinda working on independent with flanges so that I can bolt land rover stubs on.

Originally Posted by Rick1970

What I was initially thinking is adapting the electric drum (machined to suit) to the rear face of the LR hub, where the disc used to be. Have a suspicion that clearance from hub to stub, and stub mounting dia, may see that easier said than done tho.

Hi Rick

I am getting a mental picture of what you are suggesting and while it would work, there are a couple of issues.

• The electric brake drums are actually a drum and hub in a single casting. You would have to machine out the original hub to fit over the back of the LR hub, which may or may not leave sufficient room for the magnets.
• The additional space needed for the drum and backing plate may mean that you need longer stub axles than the original LR ones. It also may require more space between the drum brake backing plate and the trailer tub/springs

On the other hand, it may be worth investigating as an option for the later D2/P38 PCD if you want heavier axle capacity than offered with the Commodore PCD and bearings.

What it does give you is a hand brake, something that you don't get with electric/hydraulic using LR components.

Originally Posted by Lotz-A-Landies

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What it does give you is a hand brake, something that you don't get with electric/hydraulic using LR components.

I have a handbrake only electric over hydraulic setup using land rover components.

I have a valve inline and it works a treat....I copied Kimberly kampers design.

Some have said what if I get I hydraulic leak...one this wouldn't be allow on the car brakes and rarely happens and two what if the cable for a handbrake fails oops some outcome.

Originally Posted by weeds

I have a handbrake only electric over hydraulic setup using land rover components.

I have a valve inline and it works a treat....I copied Kimberly kampers design.

Some have said what if I get I hydraulic leak...one this wouldn't be allow on the car brakes and rarely happens and two what if the cable for a handbrake fails oops some outcome.

Hydraulic handbrakes on motor vehicles are not compliant with ADR. I would assume the same about trailers and hydraulic handbrakes, but can not confirn that fact.

Yes cable operated trailer brakes can fail because of poor adjustment but that is not the issue here.