Roller would be needle brg. If you note all of those are for
the open universal joints. that is the rear or intermediate
in the case of the half enclosed drive lines.
Granodized is a GM term. Have never found a description of it
from any GM literature but here is quote of Gene's
interpritation of it from over at the VCCA:
"graanodized refers to a coating. I would bet it is like the
tin Chevrolet plated the cast iron pistons with from 1935 and
up. Luthy brand piston rings advertised that they were granodized
to assist break-in. Have see n it mentioned as being used on
other parts also.
The granodizing looks like a black powder coating. In the high
friction areas it wears away and helps to form a super smooth
wearing surface."
I would imagine that it was a process for thermal or flame
spray coating a material on the surface of a part or it
might have been an early type of thin graphite coating.
Your ebay listing is just showing a set of plain type
bearing caps, which appear to be steel. I'm not familiar
with the pre-WWII vehicles, but judging from the parts book
I would imagine that some were still using the plain
bearing caps even though the roller bearing caps were
in use on some vehicles.
Been tryin' to figure it out but ya got me stumped cuz I'm not
a texter....what is MPC?
Keep in mind, this is a discussion, not the gospel. We're
discovering something new about these trucks every day.
Denny G
Sandwich, IL
Last edited by Denny Graham; 01/23/2016 1:53 PM.
