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Username Post: Universal Joint        (Topic#349636)
Posts: 243

Loc: seligman,arizona
Reg: 05-14-09
02-13-18 09:28 AM - Post#2724253    

Looking to find the size of the zerk fitting on the 1956 driveshaft u- joint ?
Any help is greatly appreciated.


Ultra Senior Member
Posts: 12147
Loc: Wisconsin..USA
Reg: 09-27-02
02-13-18 12:56 PM - Post#2724274    
    In response to pauldian

The 1956 U joint that was installed at the factory did not come with a grease fitting. The replacements sold by Chevrolet as well as other sorces did come with a fitting.
I don't remember the size measurement but it was the small straight thread in fitting. If it is a "modern replacement" it could be the pressed in type.

ChevGene 1934 Master sedan 1939 Master DeLuxe Town Sedan 1950 Styline DeLuxe Power Glide 1957 Nomad 283 PG 1963 Corvair Convertible

Honored Member
Posts: 27678
Loc: San Francisco, CA
Reg: 11-26-02
02-13-18 04:14 PM - Post#2724290    
    In response to pauldian

The thread size on the most common small fitting is 1/4"-28. If the replacement U-joint is an import part it might be metric instead.


Those who choose an automatic transmission want transportation. Those who choose a manual transmission want to drive.

Posts: 243

Loc: seligman,arizona
Reg: 05-14-09
02-14-18 06:56 AM - Post#2724346    
    In response to raycow

Ray, I think you are correct in that they are
foreign made ?
I think I'll solve my problems and replace both
u-joints with the non grease able type.
Thank You Ray and to you Gene.......



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