You should find a lot of useful info in my thread here where I retrofitted cruise control to a HZJ80:
So my 80 series doesn't have cruise control. I find it mildly annoying, as I do a lot of long drives, and I appreciate being able to regulate my speed on the motorways with a flick of my finger, and give my foot a rest. Most 80's here in Australia didn't have cruise control however, and models...
forum.ih8mud.com
I know for sure from my adventures doing this that what you want to do here is certainly possible. You also don't have to worry about fabricating a bracket, the factory cruise control switch that fits to the steering column screws directly onto the combination switch. The holes will already be there for it to attach on your rig, you just need the physical switch itself, and to wire it into your harness, which I talk about a bit in my thread. Be careful with wiring, because there are differences. Your rig has a combined signal line for three of the buttons on the stalk, but earlier year models have three separate lines for those wires, with different mappings on the main harness off the combination switch too. You need to know the year model you're getting the parts from and cross check them against your year model. I'd suggest referring to the following thread to get full accurate wiring diagrams for each individual US year model:
I present to you "The Complete Toyota Land Cruiser Field Service Manual" 2018 edition: TheCompleteTLCFSM2018.7z.torrent - 218.7 KB file on MEGA - https://mega.nz/file/JYkiVQzI#SsjsoKs99TFQ9R8LQth6aM9QNFohHIV_Nh3m7dIOQ9c TheCompleteTLCFSM2018.7z (21.7GB) - 21.77 GB file on MEGA -...
forum.ih8mud.com
No matter what year models involved though, it's possible to do what you want, it just varies in how much work is required.
I'm 100% sure the mounting holes are the same. Physically swapped in covers between early and late year models. I think the mounting hole pattern matches Hilux models from that time too, wouldn't be surprised to find you could even interchange them.
As for the later year models plastic wearing better, definitely, that's 100% true. Again, same across the Hilux models from the era. Whatever plastic they used for the earlier year models goes very hard and brittle over time. Most early ones I've seen are broken by now. The later ones are obviously a different plastic, and seem to go the distance.
There is a good alternative to hacking a hole in your current late model cover though. Outside the US, there were late LHD models with cruise control, where airbags were optional. The cruise control ONLY moved to the wheel with the four spoke wheel design, which was ONLY used where airbags were fitted. What you need is this:
View attachment 3057860
Still available brand new from Toyota, with the good plastic. For that matter, a good option for people with earlier US models too with cruise control fitted to the column. Note I don't expect this to be around long, so it's worth getting while it's available. The RHD version went NLA years ago.