trevor yours are the new type with the day time running lights incorparated into the headlight unit, mines are a bit old fashioned with orange side bulbs ,so i just wanted to upgrade them a bit, also my fog lights are a bit dull,(notice you dont have any unless they are in the light unit.) my sidelight bulb had conked out in one of my front units so decided to try and improve the look of the xk with new lights. whent down to halfords yesterday had a look and asked for a bit of help the young guy was very helpfull and pointed me in the way of these brighter bulbs, was going to go the full hog and get them upgraded to led s but think it would waste the look of the jag. so have bought brighter bulbs on ebay last nite that should fit in without any problem, also a lot cheeper than halfords even with the discount card i spent about 60-70quid i think as strong drink was taken last nite . not a good idea to combine drink and ebay as i have preiviosly found out lol. i started yesterday her lady ship went for her afternoon nap, i jacked up the jag put an axle stand under the front drivers side and removed the front wheel wer in the wheel arch is one of 3 bolts that you remove to take or loosen the light unit. that way you get accsess to the light unit compartments was at it for hours and ther she sits in back drive. will take photo once head clears better today bulbs wont arrive till later in the week. my mate who owns the garage phoned me last nite and i told him wat i had done he said why didnt i bring it to the garage, i told him i didnt want to bother him as he is already to kind to me, its going to be a bugger to get back in but will persist take photos later and try and post them on site, sorry about the long story folks but their it is regards charlie