rubbing my rear end

[VR4Kaos]

ive swapped my rear wheels for my fronts as the fronts had better tyers and wanted the grip on the rear rather than the fronts but now when i turn a corner sharply or go around a round about i lil keenly im gettin a rubbin noise as if my wheels/tyers are catching the rear suspenion anybody got any idea why when this never happened before i did the change over "o" btw all tyers/wheels are of the same size

[VR4Kaos]

please don't say its my rear diff please please please

[miller]

are the tyres directional? if so are all the arrows (marks on sidewalls) pointing forwards?

[VR4Kaos]

nah mike they not directional also kept em to the same side aswell

[Roberto]

Any chance the wheels have a different off-set?

Otherthan that I'd swap them back and see if you can see any differences.

[VR4Kaos]

can't say i cheaked that Roberto but i very much doubt it altho im on my way to check i will post on here it if they are different aswell

[VR4Kaos]

just cheacked and they all the same offset

[elnevio]

Have you checked the offset number (i.e. the one that says ET+42, or similar)? I know this can sometimes be confused with the width of the rim (i.e. the part that says 7JJ, or similar).

[elnevio]

Although to add to that, I would be surprised if they are rubbing, given that I think the wheels are well within normal parameters (from your other thread)!


Does it only make the noise when you have an AYC light on? It could be the first sign that the AYC fluid needs changing. You can test this on a safe stretch of road at about 20 mph by weaving/wiggling side-to-side get the AYC lights to come on.

[VR4Kaos]

im off to take me kids thai boxing in a few mins so will test this out on way home Nev.
But i already know they light up on dash quite easyly which scare's me into thinking my diff is on its wat out please tell me i am wrong as this is likely to reduce a grown man to tears

[elnevio]

Depends when they come on, really. Some cars get the bars lighting up round fairly mild bends. But it could be due to any combination of factors, but they usually come on at the 'wrong times' due to things like uneven tyre wear, tyre pressures, tracking misaligned, etc.

When my fluid started to degrade, I would get the 'wailing banshee' on corners, but noticed it stopped as soon as the last AYC bar went out.

[VR4Kaos]

thank you Nev will put it to the test now they was comin on very easy which is why i wanted to swap my front tyers for the rears felt like a rear wheel drive in bends roundabouts and corners feels a lil weird at the mo but presume that is due to the change also gettin a lot of wheel wobble and shudder when braking again presume this is due to un balanced wheels so much affects from such a little change.

[Turbo_Steve]

Karl - have you checked the tyre pressure and that the wheels are bolted on properly?

AYC being oversensitive is usually a sign of a tyre\wheel problem rather than the diff going.

I think it's highly unlikely that changing the wheels over has "suddenly" revealed that the diff is failing. As Nev says, it's more likely that you've put grippier tyres on, chucked the car around like a loon to test them out, and subsequently finished off your diff fluid and need to change it.

[Wodjno]

What is the OFFset ? And how wide are the wheels ? And what tyres eg.. 215/45/17 ??


Cheers

Wodj

[VR4Kaos]

215/45/17
just been for another drive and it really dose feel as tho the tyer is rubbing the rear arm thingy majig

[elnevio]

+48 is the offset. +48 is possibly too high. In fact, I think it might be higher than stock.

The higher the offset goes, the further into the car the wheel goes.

Are the tyres different makes? (I think you've mentioned before that they are)

Different makes of the same size tyres will often be a few mm different in actual mounted width, due to the differing construction techniques, sidewall thickness, etc., etc.

[Roberto]

due to the differing construction techniques, sidewall thickness, etc., etc.

Rim protector on the tire aswell can add a few mm's.

[VR4Kaos]

really very intresting and educational thought the +offset was further out of the car
also yes you are right in the different tyers toyo proxy's and arrow guard and i can see what you mean by the differant constuction they have as they deffo do think i will swap em back over tomorrow explains why the previous owner had the better tyers on the fronts thank you everyone for the input/advise much appretated

[elnevio]

Rim protector on the tire aswell can add a few mm's.

I'll file that under "etc., etc."!!

Yes, if the tyres have a XL load rating, they often include a rim protector. Which don't do a very good job of protecting the rim, TBH!

[Louis]

more likely to be tyre pressures. if they were ok before, you may have done something like bend a brake backing plate.
Try swapping them back again to see if it is still there.