Opinions

[69mach1]

  If you've taken your car to have work done and the car builder shortens your axles to allow for 10' wide rims, measures the offset so 295 wide tyres fit has said he has done a test fit then after all that tells you, you may have to pay to have the inner fenders rolled so the tyres won't rub what would you be thinking??

[peter9231]

I would be thinking you are getting bent over.
Peter.

[Salthorse]

I would be thinking you are getting bent over.
Peter.

there's a scene and a line in the old movie "Deliverance" that is fitting here and you have been.

[GLENN 70]

I know what your saying but yes you might have to get the guards rolled as well for a 10 inch rim with a large tyre .  If the car is low it could be a problem not just the offset of the rim or a shorter diff . The tyre still has to fit between the inner wheel well and outer guard lip .   So the answer is yes or go the a 275 tyre .

[peter9231]

Not quite sure what Glenn is trying to say here, but I can hear duelling banjos in the background!!!
Peter.

[skip70]

Sorry, but it sounds like your man messed up and wants you to wear it.

[67FBGT]

to have the inner fenders rolled

sorry, by inner fenders does he mean the inner lips of the outer guards or inner portions of the wheelhouse?

Sounds to me that either your man has miss-measured or something has been changed which has stuffed up his calculations.
If the issue is with clearance to the inner lip then can he not shorten the axles a touch more? (at his cost).

[GLENN 70]

What I'm trying to say if a big wheel won't fit ,it won't fit . Shorten the diff still won't make it fit ,just makes the offset on the wheels deeper on the outer side . A 10 inch rim will fit on 69/70 Mach 1s with the right offset and right size tyre .

[GLENN 70]

If he's gone to narrow on the diff and got the wrong offset on the rims yes you will need to tap in the inner lip and knock in the lip where the stop rubber is .

[peter9231]

Glenn,
The point is that the repairer has stated that he has test fit wheels ok.
So why should you have to pay again for the guards to be modified.
This is the whole problem, somebody is getting burned.

[shaunp]

You got no hope I reckon. Also 10" wheels may require a floater depending on the offset.

[67FBGT]

But, thinking about all this, can 10" rims fit for the full extent of travel? Are you talking 15" or 17" rims or...? The cross section shape of the tyre will be the issue.
I thought that 69/70s could manage 9" rims quite well, I believe some people have gone to 9 1/2".

Regardless of this issue of who ends up paying for what, the point is that with the Mustangs being relatively light cars at back then super wide tyres no matter how hunky they look - & I'm sure yours will! - just end up causing traction problems so surely the exercise starts to become counter-productive unless one drives around with a few bags of cement in the boot.

[jimyd]

Just roll your guards??

[GLENN 70]

My last 70 Mach 1 had 9.5 x18 rims with 285 tyres and fitted . Anything over 10 needs a floater I think Shaun or is it 8 inch .

[69ISH]

I know of a Mustang with this exact same problem.
From what I was told is that the wheels were originally going to be 17" (May have been 18" not a 100% certain) with big brakes and after it was all made the owner then decided to go down to 15" which would not fit because A: the step in the rim did not clear the brakes and B: bulge in the tyre wall now creates an issue.
Sounds like you have a very similar problem.

[Macka]

It sounds like the car builder hasn't done the job correctly and it should be up to him to fix it and not just roll up the inner lip of the guard

[69ISH]

Before every one throws there 2 bob in.
Was the car test fitted with the wheels you are now wanting to use?????
If not how can you hold the car builder responsible for the new wheels requiring the guards to be rolled if you have changed plans mid build.
2 sides to every story lets not crucify anybody until we have all the facts.

[69mach1]

I was ensured by the car builder that 15" rims would fit with 295 tyres. He suggested going 10" wide
He said he had measured then had the rims centres cut out of my 15 x 8", bolted the centres to the hub, slipped the 10" rims over the centre's, marked the rims then had them welded by a mag wheel sub contractor. He also told me that he test fitted the rims with tyres on the car.

[69ISH]

Were the rims inflated with the tyres fitted after the wheels had been welded ????
As the car I know of has exactly the same issue and the tyres and wheels were test fitted but could not be inflated as the rims had not yet been welded and according to the manufacturers documentation it should all fit which is what the owner was told and the owner was also told that this is only a possibility that the guards will need to be rolled further than what they already are as they have already had minimal rolling (if you could call it that more like being pinched) already.
The above is not to be  taken as a quote but generally my opinion.
So was the wheels you now have test fitted with inflated tyres that you will be using ( not another brand of tyre as we know tyre bulge changes from brand to brand) before the axles were shortened and brakes were fitted ????