4 wheel parts wholesalers sell the following for QT transfer cases: Gasket & Seal Kit SK1305 Small Parts Kit SP1305-50 Master Rebuild Kit TC1305 Drive Chains MT-007 & (catalog says MT-007X is for case w/"overdrive"? , maybe reduction unit?) phone # is 1-800-421-1050 JC Whitney sells: QT chain 37KX9911W $109.98 Gasket Kit 37KX9910Y $23.98 phone # is 312-431-6102 FAX # is 312-431-5625 address is: 1 JC Whitney Way PO Box 3000 La Salle, IL 61301-0300