For 5-speed Big Twin models and some aftermarket 6-speeds. This JIMS time saving transmission master rebuild kit comes with all required parts, providing you with a one in all no-hassle transmission rebuild solution and short motorcycle down-times. Kit comes complete with all required JIMS proven performance components and a complete gaskets & seal kit. Note: Kit will also fit JIMS and some other aftermarket 91-06 type 6-speed transmissions. Note: This kit will not fit any OEM 06-up 6-speed transmission.