39 replies to this topic

[AnnieLC]

Hi,
I’ve just got my LC 2 door back on the road after being shedded for 20+ years. As part of work done, we put disc brakes on front using LJ booster. I used my chrome mag rims that I ran pre shedding but now find we’re occasionally scraping the guards. We’ve had them rolled and slightly flared. So I’m asking if the changeover to disc brakes would cause the wheels to sit closer to the guards and scrape on turning lock?
I should note we’ve changed from 185/65R13 to 185/70R13.
Looking for a solution and unsure if narrower or lower profile tyres will fix or if I need new rims.
Thanks in advance


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[S pack]

Wheel track appears to be the same specification whether drum or disc brakes with the same wheels. 

Have you had a wheel alignment done yet? You may have excessive positive camber?

[RallyRed]

Hi, surprising that a 185 of any profile , would be anywhere near the guards?. What backspace/offset are the wheels mate?

What brand of tyres are they?

 

Having said that about 185's,........... we had an issue with one of our track cars when bolting on a set of wet race tyres.

The car normally runs 205/60/13 semi slicks without any dramas, but a WET tyre in that same size is way too wide.

Can't even lower the car onto the ground without the guards fouling. Had to swap to a 185/60/13 WET.

Tyre sizes aint tyre sizes.

Edited by RallyRed, 26 November 2022 - 09:11 AM.

[AnnieLC]

Wheel track appears to be the same specification whether drum or disc brakes with the same wheels.
Have you had a wheel alignment done yet? You may have excessive positive camber?

Hi Dave,
yes we've had a wheel alignment done. I should have beyond mentioned chrome mags are 7 1/2 in and rather deep (I'll post a photo).
The drivers side is worse & we've just put standard 6in rim (original from when purchased 1984) and going to test how that goes.

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[AnnieLC]

Hi, surprising that a 185 of any profile , would be anywhere near the guards?. What backspace/offset are the wheels mate?
What brand of tyres are they?

Having said that about 185's,........... we had an issue with one of our track cars when bolting on a set of wet race tyres.
The car normally runs 205/60/13 semi slicks without any dramas, but a WET tyre in that same size is way too wide.
Can't even lower the car onto the ground without the guards fouling. Had to swap to a 185/60/13 WET.
Tyre sizes aint tyre sizes.

They're Nancan Econex NA-1 tyres

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[AnnieLC]

Depth on mags


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How it sis in relation to guard


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Depth on old rims I had (spare with same tyre as mags)


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[RallyRed]

Looks like the offset on the Chromies is killing you? extra 1"? Added to the increase in tyre height.

Looks like the offset on the Chromies is killing you? extra 1"? Added to the increase in tyre height.

[AnnieLC]

Looks like the offset on the Chromies is killing you? extra 1"? Added to the increase in tyre height.

Looks like the offset on the Chromies is killing you? extra 1"? Added to the increase in tyre height.

Totally agree RallyRed. Mags have same pattern as original rims so might be able to get new standard rims chromed and pattern will match.

Thanks for your help.


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[claysummers]

Speedway offset


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[AnnieLC]

So we have put spare wheel on, which is original 4.5” rim, and scraping has reduced a lot but oddly it is scraping only when we turn left. The narrower rim is on the drivers side.

So now think we need lower profile tyres. How much lower should we go down from 70R. We had run 65R in earlier years but thinking going lower.

Thanks in advance.


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[RallyRed]

Something funny going on?.. 4.5 inch wheel should scrape anything/anywhere?

 

and

 

https://www.gmh-tora...-and-xu1-tyres/

Edited by RallyRed, 27 November 2022 - 06:15 PM.

[gtrboyy]

Checked radius rod meaurements & wheel alignment specs?

 

If baby stockers touch something is amiss....years ago we fitted 18x8 granges on my lc gtr only had to trim tiny piece of guard corner.

[AnnieLC]

So we put smaller tyres on and still getting noise. A friend (a Ford man ironically) had a look and lower control arm point is hitting back of disc brake / assembly as the clearance between them is not large enough.

To refresh, we put LJ disc brakes on LC front end.

He’s talking the hub is wrong and it’s all too close.

I’d appreciate any feedback and wondering if we didn’t take enough parts off the donor LJ and this has caused problem (of course we’ve sold donor).


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[S pack]

Lower control arm isn't bent up at the ball joint socket is it?

[AnnieLC]

Lower control arm isn't bent up at the ball joint socket is it?

No Dave, it’s not bent. I’ll be checking how much of LJ front end was used. I remember we took entire brake assembly but not sure if much more. Could it be that half and half hasn’t worked?


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[S pack]

Lower control arms are same for all 6cyl except for the XU1 arms with the strengthening plates. Swapping out the drum brake stubs and associated drum brake equipment for the disc brakes and stubs is all that is required as far as the front suspension is concerned.

Can you post up a pic of the issue?

[LCK186]

HI  Annie LC Im just reading about your problem with your brakes and wheels rubbing etc,  im guessing that your torana was a drum brake car,   You fitted the booster and discs callipers etc

 

did u replace the stub axles,   if not this will be your problem, as drum stub axles and disc stub axles are different, i hope this helps u

[AnnieLC]

Thanks LCK, I’ll check what stubs were used but it looks suspiciously like we kept the drum brake ones.

Dave, I’ll post a photo tomorrow after work. Thanks for persisting.


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[claysummers]

How are you bolting up calipers?


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[gtrboyy]

Didn't think could bolt calipers to drum brake stubs or unless used complete disc setup or stubtech items?

[AnnieLC]

Sorry, not the best photo. So turning right (towards lower control arm) wheel tilts & joint hits back of discs / backing plate. I spoke with firm that fitted them and they’re coming back to me. They think they put LJ disc stubs on as wouldn’t fit on LC drum stubs.

Is there any adjustment available here as gap is too tight?


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Closer view.


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[claysummers]

Wonder how much caster you have set. Possibly a lot of positive caster could cause this?

As I asked before, have you got calipers bolted up? They have to be disc stubs.


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[Rockoz]

Camber looks off in the pics too.

 

Cheers

 

Rob

[S pack]

Wonder how much caster you have set. Possibly a lot of positive caster could cause this?

As I asked before, have you got calipers bolted up? They have to be disc stubs.


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Clay, the pics show calipers bolted to the stubs so looks like disc stub axles.

Camber looks off in the pics too.

 

Cheers

 

Rob

Agree, looks like way too much positive camber is the issue.

[madtoranajzedded]

You’d think they would of fixed that if it had a wheel align hey.when I went from 185 to 215 I had positive camber real bad.looked like an prairie wagon lol.can you take a pic front on back a fair bit so can see if it is out at the top..