Staggered Fit Wheels; The Results
 

Re. this thread: https://www.scoobynet.com/wheels-tyr...it-wheels.html

2 years/~18k miles later, and the result is...

... new gearbox, new clutch, new flywheel :|

(technically it was just the box, but we fitted a WRX box into a Sport which meant new clutch and flywheel too)

Basically, rear drop gear bearing completely asploded (the gear literally just floats around in the socket), and the debris took out every other bearing in the 'box and scoured all the inside.

Now, we don't know *for sure* if the staggered fitment was the cause, since the difference was so slight, but perhaps it was, and maybe that's why it's taken 2 years to happen.

You live and learn.

Massive thanks to Mark at http://tdracing.co.uk though, pulled out all the stops to get it done, can't thank or recommend him enough :thumb:

marks a legend couldnt meet a nicer bloke and i wouldn't take my car anywhere else either mines in next week for a few bits and bobs

May I be the first to say "Well, duhhhh"!

Yes, yes you may ;]

There was another thread a long time ago when someone asked the same same. And I said...nope (probably in more words). Not many true full time AWD cars run staggered wheel/tyre combos, and the Impreza is one of them.

Its all about DYNAMIC rolling radius....this is different to static rolling radius as it varies upon payload, pressures and corning/braking/accelaration forces. Even if the static radii are the same, the different size tyres will behave and deform differently when driving causing different rotational speeds.

edit....found it: https://www.scoobynet.com/non-scooby...rive-cars.html

Looks like you found out the expensive way :(

Alas, if only that was posted a year and 8 months earlier when I had asked, but yeah, definitely found out the expensive way :|

Don't knock yourself out, cars that are used on trackdays/dragways can inflict a similar level of distress on the transmission... :(

dunx

Ah well somebody had to try I always assumed yours was a fwd model lol

I did think about running staggered with different tyres but didn't take into account the rolling radius when undr driving conditions so i've gone wide all round lol