35" Tires 10" rims??

[Tom75Bronc]

Hi Guys,

I'm new to the Forum. I just purchased a 75 with a 3.5" Duff lift it has Duff dual shocks up front (No loop) and rear. It has the traction bars on the rear, it also has the flip knuckle steering kit with disks. It has fiberglass front fenders with a built in flares and hood. The rears have been cut with a flare.

It has new 33-12.5-15 Boggers on 10" rims. The Boggers stick way out up front especially. It has new paint and it seems like it will just chip the paint all up if taken off road. The front flares which are built in may not be as big as bolting a flare on? The Boggers seem wider than normal mud tires. I want to get a 2" body lift because it has Duff bumpers but the rear tailgate hits the bumper. I called Duff and they said that it must be their bumper for a lift.

So My buddy has a 3.5"lift also but he also has a 2" body lift and 35-12.5-15 tires on 8" rims. The 8" rims tuck the tires in, but in measuring his BFG mud tires are a full 2" narrower than mine. The boggers seem to have huge side lugs. Is this it or just him having 8" rims?

I really like the look of the 10" rim and deep dish and want to keep them. For those that have 10" wheels do you chip up your sides bad when off road? Should I go with a 8" rim?

Looking at his with the 2" body lift 33" tires would look too small. The 35" look perfect.

What is the opinion on using 35" tires? Good / bad?

I have found a guy who wants to trade his 35" BFG mud for my 33" Boggers which I'm thinking of doing. I love the look of the Boggers but I don't like them on the street at all.

Thanks guys for any help!

Tom

 

[S_bolt19]

Hi Tom, welcome to the board.

A quick answer to your tire/rim question is that rim size will effect the width of the tire. A 12.5 tire on a 10" rim will not be as narrow as the same size tire on an 8" rim. For that matter, any 12.5 tire vs. another on different rims. Think of it this way, your 10" rims let the tire rest more at the manufacturer's recommended width, where as the same tire on a narrower rim is being squeezed, causing it to bulge. Depending on the tire company and the installation company, I have heard of warranties being voided for not using correct size rims. BFG recommends an 8.5-10" tire for the BFG MT T/A and Interco recommends that the Swamper Boggers sit in a 10" rim. Either way, your 12.5 tire with the rim is actually 11.5" wide and his 12.5 tire is 12.5 on a 10" rim (same links as above). I hope that answers that question for you.

I run 10" rims with 33x12.5x15 tires. I also have the UFO flares from Duff and they stick out about 2.5" from the body. My tires also stick out from those another inch to 2 inches and I don't have a problem with rocks kicking up. I run a tire with similar tread to the BFG MT, so it isn't as aggressive as the Boggers, so I can't tell you what the dirt manners of the Boggers are, but again, no problem with rocks kicking up. 35" tires also isn't a big deal, just make sure you are geared appropriate. If you have 3.50 gears in the axles, you are really going to drain your power. A 33" tire is about the max that you should go with that high of a gear. 35" you can get away with 4.11s.

As to trading tires, how much tread is left on both? Are you driving a lot of street & highway? If the tread is about even and you do more street than dirt, make the trade. Boggers will only last about 10-15k on the street. The BFGs will typically get in the 25-30k mile range

 

[Tom75Bronc]

Thanks for the info!!

I know I need to change the gears bad even now. Would 4.56 be better than 4.11 with 35"? I have an automatic if that makes a difference. Is there a link to what the stock rpm is say @60mph? I would like to put 35's on and maybe be around the same.

The way the lugs stick out on the Boggers it sure seems strange that a BFG on the same rim would be wider than a Bogger, weird.

The guy who wants to trade says they have 500mi on them about the same as mine so it might be a good deal.

Tom

 

[S_bolt19]

4.56 would be a lot better than 4.11. I run 4.11 and it is comparable to stock tires & gears & I don't have any problem with it at all. So, yeah, the 4.56 would be in the range of stock gear/tire ratio, or there abouts.

Like I said, if you do more street driving, then I would make the trade. It wouldn't hurt you because if you run those Boggers on the road, you are gonna be replacing them in 10-15k miles, guaranteed. That is even if you rotate them. They are just a really soft compound. That's why for competition, they are great.

 

[Broncobill78]

4.56 would be a lot better than 4.11. I run 4.11 and it is comparable to stock tires & gears & I don't have any problem with it at all. So, yeah, the 4.56 would be in the range of stock gear/tire ratio, or there abouts.
Like I said, if you do more street driving, then I would make the trade. It wouldn't hurt you because if you run those Boggers on the road, you are gonna be replacing them in 10-15k miles, guaranteed. That is even if you rotate them. They are just a really soft compound. That's why for competition, they are great.

Well $hit /emoticons/[email protected] 2x" width="20" height="20" />, there's not much left to say on this one is there ? When S_bolt speaks it's kinda like EF Hutton, best thing to do is just shut up and listen. I can't argue with a thing he's said. Personally, I think you're better off w/10" rims. The 8" rims will squeeze the sidewall out further and give you better protection from rocks but you run a MUCH greater risk of cutting a sidewall and while cuts in the tread can be patched something in the sidewall pretty much scraps the tire. I've never run anything LESS than 10" and I've never had a problem so read into that what you will, but I agree with the man 100%.

It's also hard to disagree with 4.56's being a better choice for tires in the 35" range. That's just simple math & common sense. I've run several trucks in competition and can attest that the TSL's are THE way to go compared to BFG's. I've run several brands and the TSL's & Ground Hawgs were always the best, with a big block to keep them turning they will *always* keep you moving, either forwards or downwards but you'll always be moving. BFG's are just fine for the street but drive them to a meet and everyone who matters will giggle. I wouldn't do it.

 

[Tom75Bronc]

BroncoBill78,

Thanks for the input!! I do really want to keep the 10" rims, since it was just painted I didn't want to waste the paint but oh well if it does I guess. It looks like you have mostly newer Broncos where the 10" rims probably don't stick out as much?? That was my main concern...how much they stick out.

I need a 2" lift on the body so my tailgate will not hit the bumper, when I do I want to switch to 35" tires because 33's will look way too small. So I thought it would be good to trade my 33" Boggers for 35" BFG Muds, they both are almost new. I don't really have the money to go buy new right now. I also want to be able to drive this on the street and I didn't care for the Boggers, off road I'm sure they are unreal compared to the BFG's but I'm not doing any competition.

S Bolt19,

I measured the Boggers last night and they are 12.5" wide on the tread on 10" rims so I'm not sure why they say they will be 11.5" on their website??

 

[Bully Bob]

You didn't mention "back-spacing" ..did you check that...??

You said...,

"I really like the look of the 10" rim and deep dish"

Some custom wheels have very little back-spacing....creating a wider track/deep dish...causing the tires to be way outside the flares.

Just a thought..... B)

PS. BFG's are made by Michelin ... they're a great tire & should serve you well...

 

[Tom75Bronc]

You didn't mention "back-spacing" ..did you check that...??You said...,

"I really like the look of the 10" rim and deep dish"

Some custom wheels have very little back-spacing....creating a wider track/deep dish...causing the tires to be way outside the flares.

Just a thought..... B)

PS. BFG's are made by Michelin ... they're a great tire & should you well...

Bully Bob thanks for the reply!,

I think they are around a 4" backspace so it gives it a 6" dish which I like. The 8" rims I was thinking of getting have a 3.75" backspace. The extra 1.75" makes a huge difference in the look. This is the difference of tucking the tires inside if I went with 8" vs my 10" rims.

With my fiberglass front fenders with built in flares the Boggers stick out...not so much in the rear. I haven't taken it offroad yet but it just seems that the fronts will throw everything up on the paint. I was wondering how bad it chips the paint up because I seem to see lots of Broncos on the web and Bronco Driver magazine with tires sticking out. Does everyone have wasted paint from mud,dirt ,rocks, etc or not really? S Bolt19 made me feel better about it not being too bad with rocks flinging up.

Tom

 

[Bully Bob]

Sorry to say... /emoticons/[email protected] 2x" width="20" height="20" />

You're going to get "mud" everywhere....hood, windshield, sides, everywhere.

We had one young lady abandon a run with us @ she couldn't see any more.

Paint damage would depend on how careful one is while cleaning it off.

Rocks will fly but unless you're spinning your wheels, the guy behind you is in more danger at speed. (no matter how far the tires extend beyond fenders)

Rocks seem to come loose once you get back on the pavement & up to speed...

It's all "FUN" /emoticons/[email protected] 2x" width="20" height="20" />

B

 

[Tom75Bronc]

Well I made the trade. The BFG's look terrible compared to the Boggers..Oh well.

Anyway what I wanted to tell you guys is what I thought. The BFG'S in a 35-12.50-15 on a 10" rim when you measure the tread is under 10"!!! The tire is 12.5" with the sidewall but not the tread, so it tuck's under alot more than the Boggers which is what I wanted.

The Boggers tread was a FULL 12.5". The side lugs stick way out on Boggers.

 

[Tom75Bronc]

Heres some pics with the Boggers taken last week. Hope this works.

 

[Bully Bob]

Well..., look at it this way...looks are 20%..performance 80% (perform. being what you intend to do with the rig)

(speak'n mainly tires here)

Very nice clean rig..!!! I see why you don't care to "beat it up."

If you're going for looks..;

IMHO ....I'm not a big fan of flares that don't (color) match the veh. (black or white..)

Use your hand to block off the rear...and see how great the front looks.

....then block off the front....

Where's the pic with the BFG'S...?

I'm bett'n it still looks better'n most rigs with them on there..... B)

 

[Broncobill78]

Heres some pics with the Boggers taken last week. Hope this works.

Well Damn Tom. You didn't need to post those photos at all did you ? No, you didn't. You did it just to make everyone feel all nasty & jealous, didn't you ? That was just plain mean, just downright meanspirited. ****. I hope you feel bad about what you did. You don't play well with others do you ? Sure, go & WAVE your nice shiny blue EB in everyones face. I hope someone lights a flaming bag of dogpoop on your front doorstep. You keep doing THIS sort of thing and you're going to force me to ask my wife if I can buy one too, and you don't want me to do THAT now do ya (Cuz I'll buy one that's RED and *then* where will you be, huh? Yeah, you give that some thought !!!!) ?

 

[Tom75Bronc]

Well Damn Tom. You didn't need to post those photos at all did you ? No, you didn't. You did it just to make everyone feel all nasty & jealous, didn't you ? That was just plain mean, just downright meanspirited. ****. I hope you feel bad about what you did. You don't play well with others do you ? Sure, go & WAVE your nice shiny blue EB in everyones face. I hope someone lights a flaming bag of dogpoop on your front doorstep. You keep doing THIS sort of thing and you're going to force me to ask my wife if I can buy one too, and you don't want me to do THAT now do ya (Cuz I'll buy one that's RED and *then* where will you be, huh? Yeah, you give that some thought !!!!) ?

Thats good Dave!! :lol:

How did you know RED was my favorite color??? My real passion is Mustangs I have a early one and two S351 Saleen's. They only made a little over 300 S351's in a 7 year run. They are both Red.

Heres a pic of the Hot Rod one. It has a Vortech Supercharged stroked 408 putting out 800Hp. It has a Full Griggs racing suspension. This is me out on the track.

P.S. It is nice to have blue for a change! /emoticons/[email protected] 2x" width="20" height="20" /> I always wanted an EB and I'm glad I finally got one! But If I had the choice it would be RED!

Tom

 

[77bronco77]

The reason your 10" rims stick out more then your buddys 8" rims is due to back spacing. most likely your going to need to keep it like that. if you reduse the backspacing when you turn sharp your tires will rub on the inner fender wells. And thats never good. what i would do is, if your worried about the paint gettin all jacked up, get some of the extra wide fender flares and that should solve your problem.

Eric

 

[Tom75Bronc]

The reason your 10" rims stick out more then your buddys 8" rims is due to back spacing. most likely your going to need to keep it like that. if you reduse the backspacing when you turn sharp your tires will rub on the inner fender wells. And thats never good. what i would do is, if your worried about the paint gettin all jacked up, get some of the extra wide fender flares and that should solve your problem. Eric

Hey Eric,

Yeah they have the same backspace but being 2" wider they stick out more. But the BFG Muds are 2.5" narrower so I get 1.25" less on the out side than I did with the Boggers. All the 10" rims I looked at were either 3.5" or 3.75" backspace which is what I have now.

My whole thing was since the front fenders are fiberglass and already have a built in flare I didn't really want to cut them. I might have to.

For now I will just deal with the chips...I'm thinking about putting some of that "Chip guard" spray on the lower part of the body.