Biggest tire on stock boss

[Transient]

I wonder what the overall diameter of those tires are? Could you through a tape measure on them? They look like 33s

275 × 0.7 = 192.5mm radius
192.5 × 2 = 385mm diameter
385 ÷ 25.4 = 15.16" of sidewall
15.16 + 18 = 33.16" overall tire height

 

[Jrey808]

Anyone here tried 33/12.5/20?? Would it fit?

 

[Jmzvet]

"Probably" fit with minor mud flap / fender well mods.

 

[Boss baby]

I’ve got 295/70R18 Falken Wildpeak AT3W tires on my 18-inch Trail Boss wheels. Just a tiny bit of rub on the mud flap occasionally when reversing with steering near full lock. I don’t have any lift or levelling kit, just factory Trail Boss suspension.

View attachment 153

Look great but what about fuel mileage how many mile to the gallon now

 

[mrcolieman]

Look great but what about fuel mileage how many mile to the gallon now

same tires on my 2019 5.3/6L80 and I get 20mpg on the freeway if I keep it at 65... drops off pretty quickly when I get up past 70 or am lead footing it around town.

 

[Baz]

Look great but what about fuel mileage how many mile to the gallon now

I put these tires on right away after purchasing the truck so I can’t really give you a comparison to the factory tires, but I can get 20mpg on the highway if I don’t speed.

 

[Southbay dude]

I have 35 x 12,50 with 2" leveling, no problem at all

I have 35 x 12,50 with 2" leveling, no problem at all.

Sick!!!

That’s exactly what I want to do. I bought the Baja boss 35 X 12.5 but haven’t installed them yet. Which leveling kit did you use? Did you have to add spacers?

Thanks

 

[Alster]

285/65/20 KO2s on Black Rhino Ark +12 offset with readylift 1.75 level and UCAs. Loving it! Perfect fit in my opinion with absolutely no rub anywhere

Stance looks awesome, what type of UCA did you use ?

 

[Stormin08]

This video always had me curious

just happened to notice this post and vid....
this is a really good view of the 2 main rub area on the TB liners. if notice the views looking up at the liners and notice all the room BEHIND the liners, you can easily remove the plastic BOLT IN brackets the GM uses to keep the liners tighter to the tire....REMOVE THOSE BRACKETS, and your liners can now be pushed farther away from the tire, and usually they are other holes that you can use the push pins to hold the liners in their new homes.

 

[JP20TB]

Yes there has been many treads over this topic over last few years … happy researching

 

[hawk99gt]

I got 285/75 duratracs on with real mudflaps. cut a small corner out of the flaps on the front. I'm confident that if I didn't have real flaps they would have fit with no issues. sorry pics aren't straight on.

Love the roll bar, would love to do that on my TB.