Hagon took over the manufacture of Girling shocks and they are very good value plus work exceptionally well the only visible difference to Girlings is that the pre-load adjusting cam is shielded instead of, open but i have one warning:-
DO NOT hold the adjusting "C" spanner onto the shock spring pre-load adjuster with your hand whilst adjusting the preload!!!!!!
There are 3 spring pre-load settings and the hagons will jump direct from the hardest spring setting, over the cam, to the lowest spring setting TRAPPING A PIECE OF YOUR HAND IF ITS THERE!!!!
YES, i have a "fish eye" scar to prove it!! Luckilly the top and bottom mountings wernt to tight and when i got to the vice , with shocker hanging from hand, my mate was stong enough to pull down the spring so i could get the top collets out and dissasemble the shocker to get my hand out