Different brake drum types?

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L14MNP
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Different brake drum types?

Post by L14MNP » 16 Feb 2012 02:13 am

My mk2 360 has drums with a flat face, so I can't use hubcentric PCD adaptors like I plan to. The mk3's have the raised lip in the centre, right? (can't remember actual, word. I am knackered!)

If that's the case, then can you tell me if the two are the same diameter? I heard the mk2 had larger drums, but I need whichever has the ability to centre an adaptor.
Are the back plates, shoes etc all different too?

Unsure if I am converting to discs yet or not, I suspect not for the immediate future.

Any gen?
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macplaxton
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Re: Different brake drum types?

Post by macplaxton » 16 Feb 2012 02:26 am

I thought 360s had 9" Girling drums and the rest had 8" Girling drums. But I on the moby so don't have VIDA on hand to check the parts cat.
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Re: Different brake drum types?

Post by mat_91 » 16 Feb 2012 04:49 pm

dude if you tighten them up properly as in start with one nut finger tightening it while you wiggle the spacer to center it then do the same on the opposite nut then tighten them up properly you shouldnt have no probs

tbh everybody should be doing this on every car when fitting wheels
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Re: Different brake drum types?

Post by L14MNP » 16 Feb 2012 06:17 pm

Well I managed OK with wobble nuts and Mini PCD wheels, but I am definitley not risking losing a wheel after the resto, and speeds/angle that will be available.
Not for me tbh!

Rich, interesting info mate. If it means I need to drop down to 8" drums, then that is what I will do.
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Re: Different brake drum types?

Post by mat_91 » 16 Feb 2012 06:21 pm

fair enough im not a fan of any spacer adaptors tbh they look weak to me
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Re: Different brake drum types?

Post by L14MNP » 16 Feb 2012 06:23 pm

mat_91 wrote:fair enough im not a fan of any spacer adaptors tbh they look weak to me
They're fine if centred on the hub - as the wheels on these cars should be anyway lol.

Loads of the crazy angle 200 SX boys run them without issue. Not ideal, but the only way to get the 'poke' and random PCD wheels on in most cases.

Cheers mate.
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Re: Different brake drum types?

Post by macplaxton » 16 Feb 2012 06:28 pm

I'll look it up later for confirmation.

TBH, I wouldn't even consider discs on the back of a car. My GS has them and as they don't do and work and I don't carry 3 lard arses on the back seat and a load of lead flashing in the boot, they are forever sticking the callipers. Maybe just get some tasty shoe linings instead.
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Re: Different brake drum types?

Post by Chris_C » 16 Feb 2012 06:53 pm

L14MNP wrote:Rich, interesting info mate. If it means I need to drop down to 8" drums, then that is what I will do.
I run 9" drums and they have a lumpy thing bud. I've a spare mk2 axle on the drive atm too, from a Y plate which I imagine has non lumpy thing drums. I will see if the lumpy casting fits onto the non lumpy one, that way you can get get new drums and it's easy.

Timescale? I'll be fitting it in the next... 3ish weeks.
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Re: Different brake drum types?

Post by macplaxton » 16 Feb 2012 08:46 pm

Chris_C wrote:a lumpy thing
Chris, your technical terminology has reached new heights! :lol:
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Re: Different brake drum types?

Post by Ride_on » 16 Feb 2012 09:11 pm

Haynes shows
9" for all 360
8" for all 340

The centring 'collar' (Haynes terminology) is not part of the drum of course, its part of the hub/drive flange.

The centring collar seems to just represent the different hub+bearing AFAIK (multi piece + later single piece sealed). The drum interface looks the same, and I had assumed there is only one drum type for 360's.

My MK2 83 360 GLS had the later type hubs so I am surprised to see any 360 with different hubs, although Haynes pictures do show it.
1980 345 DL_______1987 360 GLE (project car restored to GLT spec and B230FT'd)
1984 360 GLT______1987 360 GLT
1983 360 GLS______1989 360 GLE
1985 340 GL_______1986 340 1.4
1985 360 GLS______1995 940 SE 2.3 Turbo Estate (daily)
1987 340 GL 1.7

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Re: Different brake drum types?

Post by L14MNP » 17 Feb 2012 01:45 am

Cheers lads! Chris, I won't be needing it in 3 weeks lol. I wish! if you could find out the score that would be great.

Andy, makes sense that it is not the drum face itself, I definitley have the older type, so guess I will be needing new drive flanges! One of them does not want to come off the axle anyway, it has bent two pullers so far. Need to take it somewhere I guess.

It's good to know there's only one type of drum for the 360, now if only there was somewhere they won't stupid money! Any ideas?
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Re: Different brake drum types?

Post by Chris_C » 17 Feb 2012 01:53 am

MP, I'm an electronics bloke, I've never claimed to talk mech ;) Granted electronics consists of sparky things and hot things normally...

This looks to back up Ride On's point, that I believe is still 8" at that point, but the spigot doesn't seem to be part of the drum :( This is going to be a pain for me then too :(
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'89(G) 340 GLE B172k
'03 S60 D5 SE, '91 (J) MX5, 1954 Cyclemaster
Ex:
'89(F) 340 GL F7R (ex B172k) - Fake -> SBKV 300 Runner Up 08, 12; '91(H) 340 GL B14.4E - Kar; '88(F) 360 GLT B200E - Jet -> BKV 300 Runner Up 09; '89(G) 360 GLT B200E - Beast

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Re: Different brake drum types?

Post by L14MNP » 17 Feb 2012 02:04 am

Boo!

My contribution:

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Re: Different brake drum types?

Post by macplaxton » 17 Feb 2012 10:50 am

My contribution (finally got round to doing it)

>85MY
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86MY>
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Re: Different brake drum types?

Post by Ride_on » 17 Feb 2012 07:00 pm

L14MNP wrote: Andy, makes sense that it is not the drum face itself, I definitley have the older type, so guess I will be needing new drive flanges!

It's good to know there's only one type of drum for the 360, now if only there was somewhere they won't stupid money! Any ideas?
You may need the full hub+bearing possibly, not sure the drive shaft/flange is interchangeable. Part numbers are different. Also check the wheel bearing changing threads, I think the hub casing might need a different axle hole size.

You may have to change the entire axle to get the collars :-(
1980 345 DL_______1987 360 GLE (project car restored to GLT spec and B230FT'd)
1984 360 GLT______1987 360 GLT
1983 360 GLS______1989 360 GLE
1985 340 GL_______1986 340 1.4
1985 360 GLS______1995 940 SE 2.3 Turbo Estate (daily)
1987 340 GL 1.7

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