Any parts house should carry the Needle point attatchment. Try to talk to the "older guy". Worse case, explain it.
Yes you can install the u-joint backwards. If you look at yours
I assume the zirc is at the side, off center at the "x" of the joint. Rotate the joint to were you would try to grease it, and imagine zirc opposite direction of were it is pointing. Would that make room to grease? I am thinking the zirc should always
point away from driveshaft.
You can also buy u-joints with the grease zirc in the cap wich eliminates getting u-joint in backwards, and needing the Needle
point attachment.
Last option is to drop the drive shaft to grease.
Hope explanation is somewhat clear and helpful.
