I have a 9 1/8" clutch in my 1954 truck. I can't find a clutch kit for 1954. However, there are clutch kits for 1953. e.g.
Perfection clutch kit MU1042-1
http://weblink.carquest.com/acl/?mfgName=CQC&partNumber=MU1042-1Filling Station FS-30K
https://store.fillingstation.com/detail/FS-30K/Chevrolet_193853_NEW_REPL_CLUTCH_KIT_9_18.htmlI have looked at the master parts catalog:
http://chevy.oldcarmanualproject.com/parts/1929_54/113.HTMThe clutch fork, throwout bearing and pilot bushing are the same between the 1953 and 1954. Input shaft diameter and number of splines are the same.
My flywheel has casting # 839754 which is the same one used in 1953 and 1954. If helpful, stamped on my flywheel (in order) are J I C ball 5 triangle. Pressure plate bolt circle is 10 3/4". It's a 6 volt with 139 teeth. Flywheel looks like the flywheel for the 9" clutch here:
https://chev235guy.blogspot.com/2020/06/216-235-261-flywheel-pressure-plate-and.htmlThe part numbers for 1953 and 1954 pressure plate assembly with clutch cover are both listed in the Filling Station kit. (1953 part 3836003, 1954 part 3704777). This implies that they are interchangeable?
The bellhousing changed 1954 as the engine mounts changed. Don't know if that's an issue. If the pressure plate assemblies are interchangeable, it should be OK?
From the master parts catalog, it does appear that the springs and bolts inside the pressure plate assembly changed in 1954. However, as that's all internal it shouldn't be an issue?
Can anyone confirm that the 1953 clutch kit will fit my 1954? It looks to me that it will, ignoring the internal springs and bolts internal to the pressure plate assembly.