I don't see how pulling the covers off will assist in telling if the belts have been done. In most cases the belts at their end of life will look as good as new but may be structurally worn.
If the service was done at a dealer then checking with your local dealer who can check such things in their system might be an option. Other than that, check with the company that did the 168k service but if that is not known I would say there is not any really way to know for sure.
In that case you would have to assume it was not done
.
As far as the gearbox is concerned the LR service schedule has the first service at 10 years/240k unless there has been heavy use so would not have normally been serviced. However to do the steel sump, at least 1/3-1/2 of the oil would have to be changed and a new filter included so I think you can assume the necessary work has been done.
Garry
REMLR 243
2007 Range Rover Sport TDV6
1977 FC 101
1976 Jaguar XJ12C
1973 Haflinger AP700
1971 Jaguar V12 E-Type Series 3 Roadster
1957 Series 1 88"
1957 Series 1 88" Station Wagon
Bookmarks