Hi guys, I fitted a na box to my gt recently, after taking it for a spin i realised that it had an aftermarket diff fitted. It is extremely harsh to drive with around town as it knocks and bangs when turning at slow speeds, this can be felt through the steering wheel. If i release the throttle mid corner the car will snap to the inside and as i go back on the throttle it will tend to pull to the outside of the corner, is this normal?. Had a mechanic drive the car recently and he told me that there is something seriously wrong with the diff and it should be changed but i want a second opinion as the car has much more grip than before, so the diff is doing its job. I think it may be a cusco kazz or trd lsd but can't be sure, how can i tell? What kind of diffs are available for the na gearbox, or are they interchangable between na and turbo boxes? Edit: Split the box today and took a few pics of the diff hopefully someone on here can tell if it's a lsd or a welded diff
