nice 1.5 hour drive to the beach then back and a trip out to chester to pick up a fridge (that didnt fit) suggested daisy was driving nicely no oil leak, didnt seem to use any so as far as i can tell not burning any. the usual issues with a high sided vehice and vague steering ( on the list to get better bushes) heater stuck on nuclear bit annoying but better than being freezing.
then....breakdown 2 on friday was cv joints coming away from the gearbox, 2 sheared bolts left in situ, now removed, new bolts ordered with washers from brickwerks fitted, driven round the block, loose. tightened. (need to drive further and check tomorrow on whether theyre still tight) Any advice on how tight they should be or what to do if any have come loose again?
bolts replaced on the other side too just in case

so we're planning on going away for half term and its a long drive especially at about 50
obv i know we will need to check oil levels, tyre pressures, fluids (water, washer, brake) check all fuses, and bulbs. have a spare fan belt and pack some tools.
Question is what else should i be checking before a drive in my t25. seems after advice its quite commonplace to check the cv bolts as part of the regular maintenance but being new to this t25 lark i had no idea to do this.
all advice gratefully received, i'd like to make it there and back without any drama