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Cheap 750Kg Suspension.

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Tow Itch
Dandy Expert

Posts : 3175
Join date : 2011-06-20
Location : Leigh Gtr Manchester

Cheap 750Kg Suspension.

Post by Tow Itch on Wed 25 Jul 2012, 1:09 am

A newish thread on the Yahoo Group has seen one chappy replacing his suspension.
The difference was he kept his brakes and just bought the Indespension units ending in stub axles like this:
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It took an extra bit of spannering and apparently he had to weld a bit on each side but the units only cost £88.
I'll see what details I can get.


I'd never considered the mechanics for adding your old brake and hub parts.
Other than the savings it also gives hope to those of us with rod brakes.
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johninbyron

Posts : 27
Join date : 2012-07-30
Age : 53
Location : inverness

re Cheap 750Kg Suspension.

Post by johninbyron on Tue 22 Jul 2014, 12:45 pm

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Tow Itch
Dandy Expert

Posts : 3175
Join date : 2011-06-20
Location : Leigh Gtr Manchester

Re: Cheap 750Kg Suspension.

Post by Tow Itch on Tue 22 Jul 2014, 10:27 pm

johninbyron wrote:[You must be registered and logged in to see this link.]

 Yes that was me involved in that conversation.
Not looking at suspension issues as well as the roof are you? (johninbyron has looked at replacing his roof)





I've said it before but repetition is no bad thing. The Yahoo group is pants as far as the messages go but it is a cracking resource for the files that have been posted.
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johninbyron

Posts : 27
Join date : 2012-07-30
Age : 53
Location : inverness

Re: Cheap 750Kg Suspension.

Post by johninbyron on Thu 24 Jul 2014, 9:29 am

Yes I am,
Probably more of a ride hight issue than strictly a suspension issue.

So I've been on the look out for a pair of suspension units for a while.

Still haven't sorted roof .
Patched it up for now.

I have now bought a pair of second hand ,new old stock ,750kg suspension units.
That come with wheels and braked hubs.

My dandy is an early orange one ,the suspension units are welded .
Converting to a bolt on set up, for the 750's, shouldn't be much more work than  cutting off the 500's,increasing the hight ,and converting them to a bolt on set up.

Everything start to droop after nearly 40 years!!

With a need for patching a few holes in the chassis ,best to do all the welding together.

My  main concern is how the changes in geometry will affect the rod brakes (no bowden cables).
Being higher ,I think I'll need to drop the splitter/lever device to keep The arcs of the rods from the hubs to a minimum.

If any one knows the what threading is used on the rods ( whitworth ??) that would be a great help ,as I'll probably need to shorten one and replace two.

The original drums were from the rear of the Austin a35.
Handy to know for replacing/relining brake shoes.
I was just given some new liners to rivet on to the existing shoes.

The  suspension units come with what I'm assured are Austin 1100 drum brakes, which would be great as slightly, larger breaking area and much easier to source shoes (mini).

I haven't collected them yet , when I have them in my hand I'll be more able to assess there potential.

As always any input gratefully received.


Cheers Johninbyron.

P.S. still looking for a awning for a five ,orange ,slanting sides.


Last edited by johninbyron on Thu 24 Jul 2014, 10:26 am; edited 1 time in total
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Tow Itch
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Posts : 3175
Join date : 2011-06-20
Location : Leigh Gtr Manchester

Re: Cheap 750Kg Suspension.

Post by Tow Itch on Thu 24 Jul 2014, 10:16 am

I've always understood the brakes to be Lockheed Trailer Brakes. Pre auto reverse.

[You must be registered and logged in to see this image.]

You could check with Indespension's main office, they're quite helpful about older kit.
[You must be registered and logged in to see this link.] cary spares as do http://www.westerntowing.co.uk/acatalog/Lockheed_Brakes_Diagrams.html and http://www.trailertek.com/acatalog/Brake_Backplate_Assemblies.html We have discussed Rod thread before but off the top of my head I'd guess 5/16 UNF thread.http://www.trailertek.com/cgi-bin/sh000003.pl?WD=brake%20rod&PN=Universal_Brake_Spares%2ehtml#aBRKS166 but any of the above should know.
Thought you would be talking off the original backplate as per what the post in the Yahoo group. I'm thinking the brakes are 7" but do check. These people seem to have the best prices for full backplates and shoes [You must be registered and logged in to see this link.] Not cheap but you'll pay more for a set of pre 1990 Knott shoes.

Previous threads: [You must be registered and logged in to see this link.]  http://www.dandycampers.org/t1889-lockheed-drums-and-rod-brakes-service?highlight=Lockheed+brakes

I see we're having a spate of links not highlighting again.
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johninbyron

Posts : 27
Join date : 2012-07-30
Age : 53
Location : inverness

Re: Cheap 750Kg Suspension.

Post by johninbyron on Thu 24 Jul 2014, 11:00 am



Your right about the brakes being Lockheed, that must have been what Austin were using for there rear drum rod brakes, on the a35 and I
think a30

The suspension units (750's) have backing plate bolt holes ,so Hopefully if the "new" drums don't work, I may be able to simply bolt the

brakes off the 500's on, if not at least there's metal to work with.

always hopeful !

Thank you for the links,

cheers johninbyron

navver

Posts : 995
Join date : 2013-01-03

Re: Cheap 750Kg Suspension.

Post by navver on Thu 24 Jul 2014, 10:19 pm

Back in them days there was generally only Lockheed or Girling brakes on British cars.

navver

Posts : 995
Join date : 2013-01-03

Re: Cheap 750Kg Suspension.

Post by navver on Thu 24 Jul 2014, 10:25 pm

Here's an orange one with awning.

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Buy it and sell on less awning

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Re: Cheap 750Kg Suspension.

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