13.50's or 15.50's?

[tyler1bo]

Does anyone have any experience with 38" Toyo Open Country M/T's? I really want to go up soon and was planning on 38's but not sure what width..I'm currently running my BMF's which are 20X10's..I think both tire sizes will work for the rim width but was just wondering if anyone had any experience with either size. Pics would be great!

Thanks!
Austin

[atomicgoofball]

Does anyone have any experience with 38" Toyo Open Country M/T's? I really want to go up soon and was planning on 38's but not sure what width..I'm currently running my BMF's which are 20X10's..I think both tire sizes will work for the rim width but was just wondering if anyone had any experience with either size. Pics would be great!

Thanks!
Austin

I think you would be fine with the 13.50 since you are lifted right?

Roushdemon ran 15.5 38" tires on those XDs 20x10 and they looked AWESOME!!! really beefy!

[tyler1bo]

I'm getting close to lifting..just trying to decide on 38x15.50 or 38x13.50. They looked soo good on roush's though!

[atomicgoofball]

I'm getting close to lifting..just trying to decide on 38x15.50 or 38x13.50. They looked soo good on roush's though!
ahh yeah i think all he had was leveling kit and like some big spacers

but dude! either way you go it's gonna look BOSS!!!!!

You're going to be like a rolling tank hahah!! You should find like one of those Turrets/canons on an off road trailor and tow it around town when you're done LMAO!

[tyler1bo]

hahaha..it'll be HUGE that's for sure!

[Dash]

13.50/37-22 Open Country M/T on BMF Novacaines (22x10) ...no issues at all. nice ride, even wear and look outstanding !!!

[tyler1bo]

You don't happen to have any pics of that ride do you? I'd love to see it!

[atomicgoofball]

You don't happen to have any pics of that ride do you? I'd love to see it!
:iagree: :iagree: :iagree: :iagree: :jump: :jump: :jump:

[Dash]

I failed to mention...it isn't a Hummer....

http://i127.photobucket.com/albums/p143/dashracing1/IMAG0391.jpg

http://i127.photobucket.com/albums/p143/dashracing1/IMAG0386.jpg

[adamw89_2000]

I've got 40x15.5x20 and love them! There on fuel octane black where's that are 20x12 with a -46 offset. Stick out real nice and has a very very wide stance. Love the look and rides great

[densonfrnc]

5346220 inch fuels with 38 inch toyos 13.50 love the set up..

[tyler1bo]

I failed to mention...it isn't a Hummer....

http://i127.photobucket.com/albums/p143/dashracing1/IMAG0391.jpg

http://i127.photobucket.com/albums/p143/dashracing1/IMAG0386.jpg

Sick ride! Yes I like that set up :)

[tyler1bo]

I've got 40x15.5x20 and love them! There on fuel octane black where's that are 20x12 with a -46 offset. Stick out real nice and has a very very wide stance. Love the look and rides great

Pics please if possible!! :jump:

[tyler1bo]

5346220 inch fuels with 38 inch toyos 13.50 love the set up..

I forgot you were running 38X13.50! Sick ride sir :clapping:

[charles06]

It's my understanding that 15.5's can put more stress on brakes, suspension, and transmission as there is more tire surface touching the ground, equating to more resistance. I have 38X13.5X20's on mine, and they have been great. Also, keep in mind that no matter what tire width you run, the real key to prevent rubbing is the correct offset of the wheels.

When I spoke with a VERY respectable shop here in Orlando, they made it very clear that 40" tall tires were too big for Chevy based trucks without substantial upgrades, and 15" wide tires would put a lot of stress on certain components.

[tyler1bo]

I also heard that and thought about asking but didn't know for sure..So say I went with the 15.50's, I would need to upgrade several steering parts as well?

[charles06]

You should upgrade those parts even if your truck is basically stock. Stock tie rods are known for going bad, and there are some excellent alternatives. And some of the steering braces are highly recommended, as well. Not only will they last longer, but they'll help hold alignments. Considering some of these parts are cheaper than an alignment, it's a no-brainer.

[adamw89_2000]

simply put.. these gm trucks have weak steering componets... if you do any changes at al to bigger wheels and tires most professionals would reccomend upgrading these parts anyways. so with that being saids thats why i went with the 40x15.5x20. its a whole new look over the 38x13x20 in my opinion

[charles06]

I've been in the same boat as some of you guys in regards to tire size. The reasons I stuck with 38's were the advice I got from my shop, carrying a spare, and being able to match up gears, programmers, etc. With 4.88 gearing, a programmer, and other mods, I'm able to cruise all day long at 75mph, and don't find my truck constantly downshifting at the slightest hill. In fact, at 70mph on a hill, I can easily still accelerate up to 75mph or greater. Prior to the gears, my truck would downshift, and I'm afraid going with 40's would cause this again, even with the 4.88's.

Another benefit I've found by staying with 38's is that no programmers, custom tunes maybe, go up to 40" tire sizes. They top out at 38's. With the gears and programmer, my speedo is corrected. I feel it keeps the truck more drivable. But, please keep in mind, I'm saying this without having driven an H2 with 40's.

I will say, however, that all the pictures with 40" tires is really tempting me. They DO look awesome! Maybe after I get a third car...

[tyler1bo]

I will say charles your truck would look absolutely insane with 40s! You definitely have the room for it..I was afraid I may not clear 40s if I went with a standard 6" lift. I was thinking about a 4" rancho plus my keys, giving me a huge lift while paying for a 4" lift. Course no lift for a hummer is cheap, they're ALL bad expensive. I could see where the truck would be more drivable with 38's versus 40s. I mean I could do 37s but I could clear 37's right now with just a truxxx lift. The 15.50s look really good in pictures, but I've never actually seen them in person. I've seen several 37X13.50 and those are big tires! I can't imagine the 15.50's! But all of this means nothing if I don't lift the truck, but it's been something I've wanted to do since I've had it. Do either of you guys have trouble driving it around town? Meaning is it too large to drive comfortably around town?

[adamw89_2000]

I just leaned how to post and thins to this site so I'm not sure how to post up photos yet or I'd show you mine with 40"s. I'll have to research and learn how to... I understand but being that I just added 40"s to mine I hadn't changed my gearing out yet... I'm still on stock gears believe it or not and I reslly don't think it's to bad. I pull my lawn trailer "16ft" 80% of the time to! It does downshift on hills and is annoying on the highway but I can still cruise 70mph. I wouldn't wanna race a vette or Anything but it I'd tolerable till I get time to swap in new ones... I do not wheel in my truck, with that being said my front end shop just inspected my whole front end... Nothing was worn out an thu advised me to keep running sll my stock parts and not upgrading until they show signs of wear....

[tyler1bo]

If you upload your pictures to photobucket..you can click the img code on the website and paste it in the posting part of this site and your pictures will come up..it took me awhile to do it myself. But I'd love to see your ride. Are you running a flat six inch lift or is it larger? And I'm not hard on my truck either. Seldomly offroad and don't harp on it when I drive.

[adamw89_2000]

Ok I'll truant c but I'm doing this from my phone so I sill have to wait till tomorrow. As for the lift its a 6" but actually raised it almost 8". I was reluctant to put the 40"s on it cause so many people on here say u have to regear with those and even 38". I was scared cause I even pull a trailer that prob weighs 4000 lbs. Like I Sao it's not a race truck but I do just fine on stock gears with my 40"s so don't let thy determine wether u get them or not. 40"s look way better in my opinion... With the 12" wheel and my big offset with the 15.5 wide tire it makes this thing very very wide. I love the look. The width of tires just matches the width of the body. Some People would hate this but my tires stick out prob 3-4" outside of body. Very aggressive look.

[adamw89_2000]

If you would like to pm me with tour email address or a number I can text I b happy to send u s few pics that way also.

[tyler1bo]

See I love that aggressive look, and I will say there's nothing like a 40" Toyo..soooo awesome to see in person. I just don't want the truck to be so overwhelming large that it becomes a toy instead of a daily driver. Because it is my daily. I get in to parking spaces perfectly fine now and I personally don't think a lift will hurt it that much, I know parking decks will be an issue as there are only a few that allow that much height. And I also am running a 20X10, I wish the wheel was deeper but BMF only goes to a 10.5 in width. So you add all that up and it's gonna be a 6,000+ upgrade to do all this. What were your figures on your upgrade?

[adamw89_2000]

Mine is a daily as well but I do have two other trucks if needed. The truck is big no doubt, it's big from factory. With the lift and wheels I get around fine. Parking is tight but we have no garages here where we live so height is not an issue. My windshield sets about the top of my garage door on my house. Lol I bought my bds for like $2500 I think.... And I got steal on my wheels. Bought em new for $700!! Tires I bought used to see I I wanted to buy new 40" or go with a 38" but after driving on these 40"s now for a month, I'm buying these new and I believe I can get them for around $2100

[charles06]

Stop all this writing about 40's not being that bad. I really don't want to read it anymore. Haha

Like I said, my truck drives so well right now that I don't want to mess that up. Being able to legitimately accelerate into traffic is nice for driving around town and the highway, with "decent" MPG to boot. Sounds like 40's are very doable, though, if you aren't using this as a daily driver. As stated earlier, if I ever get a third car for putting miles on, I might consider 40's.

Then again, I also just might get the thing in my avatar. :giggling:

[tyler1bo]

What is your mpg right now currently? I'm just curious..I bet your truck sounds awesome too with those headers and exhaust. I wish I could see a lifted H2 up close in person to really get an idea of how big they are..but its so hard to find someone that has one! I've seen one lifted H2 before but I really think it was higher than a 6", too large. But it was awesome. Would love to see both of your rigs in person.

[adamw89_2000]

Mines a daily and it's bot bad at allsriving around in town. I can accelerate just as fast as anyone else and I have stock gears! Would I like to get 4.88s, yes no doubt but until I can find someone reputable to do I I'll wait. Considering it drives jut fine now, I'm in no rush. I get 9.5! Lol but then again I do mostly town driving an pulling my trailer.... I also have am engine light on and believe it's a knock sensor... Maybe so that would affect it some to but then again I bought a hummer. I didn't hav high hopes for getting good mpg. Lol

[tyler1bo]

Hey I'm getting 11.0 with 35's! I was thinking you'd be around high 7's and low to mid 8's..9.5 really isn't that bad considering you have 40 inch tires!

[adamw89_2000]

Well thank u, that just made my day! Lol

[tyler1bo]

Regear it and hello to a decent gas mileage 40" Toyo hummer h2! Haha

[charles06]

Yeah, 9.5 isn't all that bad. I get 10.2 with my set up. 40's might not be that bad.












I hate you guys.

[tyler1bo]

Ooooh no you don't! Haha

[atomicgoofball]

Haha all you guys talking about 40x15.5 and here I am dying and itching for 37s lol!

[tyler1bo]

You could make a sick pewter and black ride! Beef it up man! I gotta get out of my 35's too..ready for a change!

[atomicgoofball]

You could make a sick pewter and black ride! Beef it up man! I gotta get out of my 35's too..ready for a change!
Hahah yeah bro! Trying to get on your level!

[ROUSHDEMON]

wow that's a lot of talk in 2 days...... had to catch up...

Couple of things.....Dont be afraid of the big rubber! I have a 7" lift, running 40x16.5, dont have gears, do have upgraded steering, no more issues, offroad it a lot and love everything about it.

Okay, so..... Tyler1bo....No I didn't have spacers running 38"s Toyos, just ran 38x15.5 with 20x10 -24mm offset wheels... BARELY fit and even had to trim the inside of the plastic fender in order ot get zero rub at full clock with green keys and full crank up. So beware!...

-You will not get to fit 40s without any kind of lift, that includes body lift.
-First thing you will HAVE to upgrade is your tierods even at running 37s, make sure your ball joints, control arms, etc are not worn out because the wider OFFSET!.... of the wheels NOT the 2" difference in tire size will wear the steering system.
-4" Rancho lift is actually 6"s, add keys and you get a safe extra inch without the bars being cranked.
-I still get an average of 10mpg.....Who's counting???
-38x15.5 will look uber sick if you have the right offselt on your truck

Main point is... dont worry so much about the tire size, 50% of game and look has to do with the right offset of the wheels and lift.

hope this helped a bit.

[tyler1bo]

Thanks for the help!! I know I can't do 40's without a lift..haha. I'm really thinking of your setup with the keys and rancho. Because I don't want to discard my keys once I lifted..and hey an extra inch never hurt anybody! I would love some deeper wheels but we're talking a $6,000+ upgrade to do lift, wheels, AND tires..plus what other steering components needing to be added. The truck will look awesome 6" higher with some huge meat under it! It will be done at some point! Just don't know when..

You guys have been a great help! Good thread here if anyone else wants to add input or pics! Pics are always great!

[tyler1bo]

Hahah yeah bro! Trying to get on your level!

haha..and I'm trying to get on everyone else's level! Just jump with me! We'll both go high at the same time! :perfect10s:

[Smokin Joe]

Hey Densonfrnc, did you regear? And what back spacing do you have? Your H2 is sweet!!

[OrangeCrush]

I've been in the same boat as some of you guys in regards to tire size. The reasons I stuck with 38's were the advice I got from my shop, carrying a spare, and being able to match up gears, programmers, etc. With 4.88 gearing, a programmer, and other mods, I'm able to cruise all day long at 75mph, and don't find my truck constantly downshifting at the slightest hill. In fact, at 70mph on a hill, I can easily still accelerate up to 75mph or greater. Prior to the gears, my truck would downshift, and I'm afraid going with 40's would cause this again, even with the 4.88's.

Another benefit I've found by staying with 38's is that no programmers, custom tunes maybe, go up to 40" tire sizes. They top out at 38's. With the gears and programmer, my speedo is corrected. I feel it keeps the truck more drivable. But, please keep in mind, I'm saying this without having driven an H2 with 40's.

I will say, however, that all the pictures with 40" tires is really tempting me. They DO look awesome! Maybe after I get a third car...

Yeah, you can tell you live in FL....lol.

On both of my H2?s, I ran 38?s with 4.56 gears AND a supercharger. The gutless POS wouldn?t maintain 70 mph with the cruise control on without kicking in and out of overdrive.... thus, the reason why I pitched that piece of crap 6.0

At the slightest incline, it would drop a gear down if the cruise control was on.

Mark

[charles06]

Haha. How can you tell I live in FL?

And I'm still debating 40's. I talked to my shop, and they can have someone at Superchips send me a custom tune for my programmer that would handle 40's, thus keeping my speedo correct, and hopefully my powerband. We'll see.

[OrangeCrush]

Haha. How can you tell I live in FL?



Cause if you're using cruise control and having no power issues, you've got to be on flat pavement....

Speaking of Florida, we left my mom's house at 1pm today to come back to NC. It's now 11:48 pm and we JUST got on I-26.

Holy crap, traffic was a cluster fudge.

Mark

[charles06]

Ohhh, I don't actually use cruise control. I meant I can maintain that speed, but I figured you were referring to flat roads.

And, yes, traffic can suck sometimes.