Bad idea. Gave me part number MT-98-4. Parts Unlimited didn't recognize that. Local shop spoke to tech at Parts Unlimited. Said they do not have a part number for that yet. 636 motor has different clutch than previous years. Lockhart Phillips shows the same part number for 03 ZX636 and ZX6RR, wrong, RR uses 6 springs, 636 uses 4. Any ideas fellas?