U-Joint Lubrication

[Eric Straub <ericst@MICROSOFT.com>]

I've just finished rebuilding my rear axles (phew - what a job!). I put new
u-joints on and the u-joints (from TRF) have a little grease nipple. Problem
is, there isn't enough clearance between the nipple and the yokes for me to
get the grease gun onto the nipple. Is there a manufacturer who makes
smaller radius grease gun parts? Does anyone have advice on how to get the
grease into the u-joint?  

Eric.
Restoring '67 Spifire Mk 2