MANUAL TRANSMISSION REBUILD KIT with SYNCHROS * S6-650 / S-650 * Vital Parts is offering this NEW transfer case overhaul rebuild kit for the FORD ZF truck 6-speed manual transmission equipped with S6-650 / S-650. This transmission has an aluminum case and is rear loaded. The unit will as well have case markings of "1319" As always if you are unsure of specific fitment please send us a message we would be happy to help! BK486WS - KIT COMES COMPLETE WITH: Cup plugs Front and rear seals Input pocket bearing (NTN & Nachi Quest Bearings) Input shaft slinger / shield Counter shaft bearings Main shaft and rear tapered bearings HIGH quality synchro rings (3 thru 6 as 1st and 2nd are reused in the rebuild process)