Hi all,

Now I thought these boxes were pretty indestructible. I mean, I haven't heard of one breaking at all.

I've only had my car back on he road for the last few hundred miles (I had been upgrading to the MTX box after blowing up the IB5 one). MTX box was great until about 100 miles in and it started getting a bit chattery when bringing up the clutch in 1st or reverse. Now there's a lot of chattering about and it sounds awful. It still works and once moving feels like any box should, changes gear fine, operates as it should.

Car is a Puma
Clutch is an Ap 4 paddle with very little slip, it's practically on/off.
Engine is Mk1 FRS running 288hp/282lbs ft at the hubs.. So not massive.

Has something started to wear?? It's sounds like the diff, it's that's area if someone listen closely from the outside whilst someone moves the car back and forth. When the car is jacked up there seems to be a lot of play in turning the wheels to when the diff is turning.. Perhaps an 1/8th turn.

Anyone experienced any trouble with this box or have an ideas what's wrong with it?

Thanks in advance.

Ben