I find the U-joints to be pretty stiff on assembly. That's a good thing.
The goal with the zerks is to be able to get a grease gun on them
when everything is assembled. This maye take a couple of iterations.
I have, on some occasions, installed a set screw instead of
the zerk, and keep an extra long zerk of the correct thread
handy for maintenance.
This is truly a PITA, though, and leads to U-joints that don't
get lubed. Of course, pretty much the whole installation leads
to U-joints that don't get lubed.
If you're not doing this for concours, and maybe even if you
are, I suggest that you install the rubber splash shields for
the inner half-shaft U-joints. These were added for the TR5/TR250
and help a lot.
Also, use AN bolts and high-temp nylocs instead of the stock
British specials. I made this change and no longer have to worry
about the nuts coming loose from exhaust heat. You want
the AN6-10A bolt, with a single AN960-616 washer and AN365-624A nyloc nut.
(More details at www.dimebank.com/Bubbaspec.html)
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