No problemo.
I have done this to all my Rovers. The 1-1/16" lug nuts are so much better. However, you must purchase the right nut. The 1-1/16" nuts with the correct thread size were only made for a few years 69-71 I think, and they are alot more expensive. The SIII 1-1/16" nuts will not work.
61 II 109" Pickup (Restomod, 350 small block, TR4050)
66 IIA 88" Station Wagon (sold)
66 IIA 109" Pickup (Restomod, 5MGE, R380)
67 IIA 109" NADA Wagon (sold)
88, 2.5TD 110 RHD non-hicap pickup
-I used to know everything there was to know about Land Rovers; then I joined the RN Bulletin Board.