Presuming a SWB? Otherwise, nah. Don't.

Or phone Frida at turners.

https://smithies.co.nz/land_rover/index.htm

Get the parts manual, online, free download, and compare the part numbers.

Well, sure. You'll find exceptions. But the old goodyears on my 101 are NLA, and have worn to less than 33". And still have bar grip left. The Toyo tyres are available, inexpensive, compared to the Michelin XCL's, and have a decent speed rating. I'll trade speed for acceleration by them being...

846mm which is 33 inches. Close enough for a modern radial tyre, that's specified for the rim width, that's available.

My mistake. 255/85 r 16.

Camac, Portuguese, and peltas do them. There's a toyo open country that does a close 285 r 16. Then you're into the Indian 9 x 16 cross plys. Any photos of you 101?

Looks mil spec. An electronic 12v dizzy will be a simple drop in replacement.

Ethanol in petrol. Introduces water. Buy Esso supreme only. E5 Max, usually zero. Plus tank isn't full, keep driving and using both tanks.

Light bulb moment?

Run the fan straight from a 12v supply. Then use the resistor. Should be half speed...

Cosmetic only, use 3M duck tape.

Doubt it. They don't count the leaves. As long as they know you've fitted parabolics they don't care. Afterall parabolic spring come in different specifications, three leaf springs are made from the same individual components as 4 leaf springs, bar the fourth leaf.

Are the dumb irons the extended 1 ton type? If not, remove. My 109 front end doesn't move much on the suspension. That's with parabolics.

I've done this. No problem. Points regarding rivets, leaf keepers, U bolts above all relevant.

Series three has the tank in the rear.

Swb half shafts are prone to failure. And work harden.

And become expert at replacing half shafts.

It would help if you shared a little bit more detail. Which engine do you have?