Yes PJ, we posted that Federal Mogul Precision #331 number way
back in '06 for the two rear u-joints. Very common part
available every where even in the far reaches of Lake Wobegon,
Minnesota. Here's just one FLAPS listing who's price is typical
at only $15.99:
http://www.oreillyauto.com/site/c/detail/PRE0/331.oap?pt=01462&ppt=C0362That number is shown to fit 2773 different Chevrolet
applications, 2801 GMC applications, 1850 Ford applications.
Silverado's and Suburban's are just a couple that used them all
the way up to 2006, so I guess we could upgrade the years from
1948-2006, and maybe more, but that's really enough to assure
that they will be available for many decades.
The one that we've been addressing here for six or seven years
in this thread is the front one which is enclosed in the ball
at the transmission. That u-joint or a u-joint
rebuilding kit is not available any more and NOS is
about impossible to find at a reasonable price.
Denny Graham
Sandwich, IL