T5 Non-World Class 5-Speed Transmission Small Parts Kit The T5 Transmissions will be cast 13-52. Please identify what you have as this small parts kit is for the Non-World Class T5 only! The World Class units have fiber lined synchro rings. Non-World Class transmissions have brass synchro rings for all the synchro rings except 5th. Please make sure your transmission is the Non-World Class T5 before purchasing this small parts kit! This kit comes with all the snap rings, thrust washers, needle bearings, fork inserts etc.