If an 8v, I'd just chuck another 2nd hand £50 8v 020 in.. If kr/abf, do it properly and do 02a cable change box, along with hydro clutch. All that along with a brand new vr6 clutch is still way less than £4-500! Cars future proofed for more power, and the mk3 02a boxes are stronger and lower mileage available. All 16v boxes crunch already, or are on their way out unless been rebuilt. When mine went there was no way I was going to spend that sort of money on a rebuild, when if I 20vt one day I'll need all the 02a bits for a proper job anyway.