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Posted

Xd series rockstar II. 285/70/17 mastercraft courser mxtattachicon.gifimage.jpg

 

What exact size are these Rockstars?

I need 17 inch wheels but I cant figure out any other part of the wheel setup. mainly the 6x5.5 or 6x4.5 part.

 

What offset were your wheels and did you have any rubbing issues? I have a 4x4 crew cab with 2.5 inch RC lift on 33" cooper AT3s. I've never upgraded wheels on any of my trucks.

Thanks!

Posted

 

What exact size are these Rockstars?

I need 17 inch wheels but I cant figure out any other part of the wheel setup. mainly the 6x5.5 or 6x4.5 part.

 

What offset were your wheels and did you have any rubbing issues? I have a 4x4 crew cab with 2.5 inch RC lift on 33" cooper AT3s. I've never upgraded wheels on any of my trucks.

Thanks!

The wheels are 17x8. 6x5.5 10mm offset

No rubbing

Posted

 

I need 17 inch wheels but I cant figure out any other part of the wheel setup. mainly the 6x5.5 or 6x4.5 part.

 

 

The 6x5.5 or 6x4.5 part is the wheel bolt pattern

 

The first number is the number of bolt holes in the wheel or the number of studs. The second number is the diameter of the circle formed by the lugs (or bolt holes). These vary by manufacturer, GM, Ford, Toyota etc. For gm trucks, most models any way, they are 6x5.5 or 6x139.7 Same thing though, 5.5 inches or 139.7 mm This is for the half tons anyways. The HD's are 8 lug and are therefore 8 x diameter.

 

So, for your truck, you would need a 6x5.5 or 6x137.9 bolt pattern. Be it 17x9 or whatever you choose. Also playing into your decision is wheel offset, backspacing, tire brand and actual size, but there is a lot of options covered in this thread of various sizes and combinations that should lead you to a good fitting setup.

Posted

what is everyones thoughts on 18s vs 20s?

i still havent gotten my rims and tires because i just cant make up my mind. i love 20s but dont want to handicap the trucks offroad ability....even though its going to be on pavement 95% of its life.

ive got the 2.5 RC lift, going to install it once the weather warms up.

Posted (edited)

If i were getting new wheels i would go 18s just for cheaper tires...why would 20s handicap the off road ability of the truck?

 

I mean i get it more rubber, but are we talking like serious offroading/rock climbing etc. or just hitting some trails and farmland every now and then.

Edited by 5RWill
Posted

no farmland, and not rock climbing. but the roads by my cottage are dirt and old decommissioned logging roads. some are ok but some are a lot of mud with a few hidden rocks and logs here and there.

others are technically ATV trails but the sierra made it.

 

the price between 18s and 20s is only about 25 bux a tire and rim...not a huge price jump. and ya its the sidewall issue im concerned with.

Posted

If it's a concern at all i would go 18" hell maybe 17".

Posted

Planning on leveling with a Nitto Terra Grappler G2 285/50/22 tire. Ive wanted these 22s forever and I finally found a heck of a deal on a set so I jumped.

 

Also my nfabs will be for sale also.

Pls do! I'm considering the same and would love to see how it looks. Some OEM replica 22s with 285/50/22s or 295/55/20s with the new Fuel beast wheel that should be available in a month or so

Posted

3b733cc5097b2f641594ff72569c2d74.jpg

 

Changed wheels again

 

18x9 Black Rhino Sierras wrapped in 33x12.50x18

  • Like 1
Posted

3b733cc5097b2f641594ff72569c2d74.jpg

 

Changed wheels again

 

18x9 Black Rhino Sierras wrapped in 33x12.50x18

Looks really good
Posted

So...just saw this, Toyo is releasing more sizes for the RT. Honestly i'm left scratching my head. We get two more sizes offered in 20" wheels and it's 35x12.5x20 and 37x12.5x20. Why wouldn't you go to a more common size tire that appeal to a larger audience, rather than a niche tire size like 35" & 37". I mean i've been settled on 295/55/20 Toyo MTs for sometime but told myself if they got the 295/55/20 or even 305/55/20 RTs out i would go with them. Yes there is 33x12.5x20 but i'm under the impression that would take some serious offset to run.

 

http://tirereview.com/toyo-increases-open-country-rt-size-offerings/

Posted (edited)

So...just saw this, Toyo is releasing more sizes for the RT. Honestly i'm left scratching my head. We get two more sizes offered in 20" wheels and it's 35x12.5x20 and 37x12.5x20. Why wouldn't you go to a more common size tire that appeal to a larger audience, rather than a niche tire size like 35" & 37". I mean i've been settled on 295/55/20 Toyo MTs for sometime but told myself if they got the 295/55/20 or even 305/55/20 RTs out i would go with them. Yes there is 33x12.5x20 but i'm under the impression that would take some serious offset to run.

 

http://tirereview.com/toyo-increases-open-country-rt-size-offerings/

33x12.5x20 and 305/55/20 are the same size. Both are a 33x12.5. It's just in how a company chooses to advertise the tire. Also they already had the 35x12.5x20 out for the RT. That's not a new size but the 37" tires and the 35x12.5x22 are new sizes.

 

I apologize in advance and if I am wrong about the 33x12.5 and 305/55 being the same then someone pls correct me.

Edited by Mike1220
Posted

33x12.5x20 and 305/55/20 are the same size. Both are a 33x12.5. It's just in how a company chooses to advertise the tire. Also they already had the 35x12.5x20 out for the RT. That's not a new size but the 37" tires and the 35x12.5x22 are new sizes.

 

I apologize in advance and if I am wrong about the 33x12.5 and 305/55 being the same then someone pls correct me.

Mostly right. A 305 is only 12 or 12.1" wide.
Posted (edited)

Mostly right. A 305 is only 12 or 12.1" wide.

Ah i apologize. Whenever I have seen a 305 tire it is usually 12.5 manufacturer spec Edited by Mike1220
Posted

Well technically speaking it varies per manufacturer. I mean by default spec a 295/55/20 is 32.8"x11.61"x20, Toyo's measurements however for their MT 295/55/20 are 33"x12.2x20. I really just wanted to see the RT in 295/55/20. I don't think ill have enough clearance to run 305/55/20s and honestly 295/55/20s will be pushing it i believe.

 

I mean we're talking tenths of inches here and there per manufacturer difference to default spec but it is indeed a difference. I had just read that 33x12.5x20 rub with stock offset on the 14s. Also for some reason i picture 33x12.5x20 being a fat looking tire, which i don't really want. Want a balance between the two. Like my friends 285/70/18s, granted it's a 34" tire it being 11.5" width looks perfect.

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