Original tire size for highboy?

[Chaseman]

I don't really understand the older tire sizes to well so...
What were the original tire size for a 1971 Highboy in inches?
Cause I'm thinking about going for closer to original tire size when I get new tires.
Thank You
Chase
I looked in the brochures and it said something like 24.5 inches for size.. I find that kinda small comparing to some factory ford 4X4 brochures.

[Blue Cloud]

I think the highboys came with 750x16 with split rims. On my 71 highboy I run LT235/85R16 on tubeless rims from an 80's F250, pretty close to 750x16, alittle wider tread maybe.

[Blue Cloud]

Oops, forgot to add that the tire diameter of mine is 31 and 3/4 inches.

[montana_hiboy]

I run 235/85/16 BFG's (just under 32") pretty close to stock size.

[Chaseman]

ahh cool , thanks guys for replying. So 31's aren't too far from the original tires?

[averagef250]

they came with 31-34" tires dependant on what GVW/tire combination you ordered from the factory. My 70 had 34X6.50X17's on it for most of it's life and they looked small at stock height.

31" tires look funny on a highboy that isn't sagging real bad. Most run 33's on them. On a stock height highboy I like the 255/85R15 BFG mud terrains. They're 34" tall about 7" of tread and work really good. They also fit perfect on stock 6 and 7" wide ford steel and alloy wheels so no worries about buying wider wheels.

Taller tires will net you better mileage. With 4.10's these trucks scream on the highway.

[montana_hiboy]

Tall skinny's are the way to go in these trucks.

[Chaseman]

ohh yeah , the whole screaming on the highway thing and I miss calculated in my last post. So you think I should just stick with my 33 inch tires.

[SteveC]

he isnt kidding about these trucks screaming with the 4.10 gear

[sideoilerfe]

they scream with 33s and 4.10 gears but I can easily still do 100 in a heart beat!!!

[jellybean]

My Highboy still has original era tires. They are Monarch 7.00 X 16 with split rims. They are very aggressive tread and measure approx 31 inches tall and just less than 7 inches wide. Hope that helps. I think when I am ready, I will use later model rims and 235/75R16 for replacement.