Tires

[linda]

ok Guys I need help from you Bronco Gods before I ***** this one up. I have a 95 Bronco and I just put a 2 inch lift in both front and rear and I would Love to

put 33x12.5.15 on a/t.. Does anyone think I will have any problems with them fitting. the size of the rim is 15x7. Any help would be greatly appreciated. Happy Easter all[/b][/size] :-" :-"

 

[Krafty]

Well Hello and happy easter to you as well.

I can tell you that the only issues you are going to have is rubbing on the radius arms at extreme right and left turns.

the lift you have will prevent any fender or bumper rub so you don't have to worry about that.

there is not way to fix the radius arm rub unless you get new radius arms with an inward angle built in, or aftermarket rims with greater back spacing.

but like hundreds of us do you can just live with it.

One point I like to stress is the importance of having the right gears. if you look at your door tag there should be an axle code,

if you see a 19 then you are good to go. if you see an 18 then just remember not to drive it like a race car.

GL

Krafty

 

[linda]

ok Guys I need help from you Bronco Gods before I ***** this one up. I have a 95 Bronco and I just put a 2 inch lift in both front and rear and I would Love to

put 33x12.5.15 on a/t.. Does anyone think I will have any problems with them fitting. the size of the rim is 15x7. Any help would be greatly appreciated. Happy Easter all[/b][/size] :-" :-"

 

[Krafty]

Can I clarify anything for you? I was referring to the fitment of 33" tires on 15x7 rims and how they will only rub on the radius arms.

and the 19 axle code means 3.55 gears which are perfectly fine, and an 18 axle code means 3.08 gears which will put your drive line under more stress with the bigger tires.

 

[linda]

Thanks You so much Bronco Gods you guys are great I just checked and the number on my door panel says 19 for the axle so I guess I am golden.. Yeah now I can go spend a fortune on my tires.... I can always count on this forum to help me out..... Once again Thanks

 

[Seabronc]

Linda, just one caution. You can stuff those on the 15 x 7 wheels, but that voids the tire manufacturer's warranty. Minimum spec for 15 x 12.5 tires is a 15 x 8 inch wheel. The danger is the possibility of popping a bead and if that happens at the wrong time you may wish you upgraded the wheels along with the tires. See this, the specs are the same for all tire manufacturers http://www.tirerack.com/tires/tires.jsp?tireMake=Goodyear&tireModel=Wrangler+DuraTrac&partnum=325QR5WDTOWL&vehicleSearch=false&fromCompare1=yes&tab=Specs

Good luck,

>-

 

[Krafty]

the stock rim size is actually 7.5 inches, I ran my 33's on them for years at max pressure and low pressure for wheeling, I never had a bead issue.

for the sake of covering your own a$$ then yeah going to a 8" rim would be the way to go if you have it in your budget.

otherwise I wouldn't loose much sleep about it.

 

[miesk5]

yo,

This is Sizing & Inflation from Ford's Official 1996 F-150, F-250, F-350, F-Super Duty Chassis Cab, F-Super Duty Motorhome Chassis and Bronco Workshop Manual

Bronco

Wheel - Tire

15 x 6.0Ja - P235/75R 15XL

15 x 7.5J - P265/75R 15SC 35

a = Also available with 15 x 7.5J wheel.

The size and part number or two-character wheel code is stamped or cast on the wheel.

For all tire installations on any vehicle:

Do not mix tire brands.

Do not mix radials, bias or bias-belted tires.

So, as the my friends here mentioned, 15 x 8 inch is preferred; check with a local family owned tire shop to confirm this; my local shop won't install 32's on the factory wheel

btw, here is 95 Bronco Brochure, Source: by Ford via Hans Tore Tangerud @ lov2xlr8.no

Std tire size was P235/75R x 15 (XL)

and Optional was;

P265/75R x 15

 

[linda]

Thanks You so much Bronco Gods you guys are great I just checked and the number on my door panel says 19 for the axle so I guess I am golden.. Yeah now I can go spend a fortune on my tires.... I can always count on this forum to help me out..... Once again Thanks

 

[linda]

Thank you for sharing your expertise.. So this is what happened I went with all of your information and the Gentleman called ford.. Ford said there is no way the tires will fit because my rim size is 15x8.. They did tell me that I can change the wheel to 15x10 the Total price for that is roughly $425.which I didnt think was so bad but what do I know.. I did some investigating and was reading that 15x10 I should have a 4 inch lift. I have a 2inch lift... Any words of advise.. When I checked the size of the radius arms on my truck which reads 19. I thought I was good to go... Guys I really appreciate all of you taking the time out to reply back to me. >< <'>

 

[ogre20012001]

find another shop 33 will fit on a 15x8 so find a differnt shop and go that rute i have 15x10 wheels and hate them i will be changing to a 15x8 or a 15x7.5 factory wheel just as soon as i can.

 

[linda]

find another shop 33 will fit on a 15x8 so find a differnt shop and go that rute i have 15x10 wheels and hate them i will be changing to a 15x8 or a 15x7.5 factory wheel just as soon as i can.

 

[Krafty]

the 15x8 is all that you need for rims, they just want you to spend more money and spend it at their shop.

to satisfy your concerns .... 33's will fit on any stock size rim despite some opinions, so 15x8 is more than good.

33's will also fit on 80 to 96 ford f150's 250's and broncos with absolutely NO LIFT i've done it with my 81 my 89 and my 93,

so your 2" lift will be enough.

 

[Rons beast]

Most all of the tire manufacturers recommend a rim width of 8.5 to 11.00 inches. for 33x12.50 tires.

That said, there are plenty of guys and some girls, that have run the 33x12.50s on their stock rims, with no problems other than the rub on the radius arms as mentioned.

There is all sorts of techinical info from Ford and the tire manufacturers available on the net. What is great here is that you can get real world info from real people that have used or experianced the same equipment that you are inquiring about. Guys like Krafty and others have been doing the mods and driving on them for years. If we all were to conform to the factory engineering spects, this would be a really booring forum, and all the info any of us would need is already printed.

This is the great part....do what you want..it's your truck. Just report back so we can see what happens from your experiances.

Good Luck and get us pics.

 

[miesk5]

yo Ron,

Why would you say that about factory or aftermarket specs when so many go out and buy oversized tires & wheels and find out the combo "hits my bumper or rad arm; or the bead popped"? Or the offset is wrong? Wont't work w/ my Bronco's 2 inch lift?

And as tire rackand other tire/wheel sources other than Ford state: "... 15x10 wheel with 33x12.50-15 requires at least a 4.0" lift" But of course, not many follow their guidelines or specs, so will they honor their warranty on the tire if wedon't follow their advice?

Or I'm wrong and the person will be p** for asking instead of using the specs?

And yes it would be a boring forum, but so Many do not have access to the specs as in this person's Question.

Anyway, we'll find out soon.

edit: I beleive our friend here, justshootme has 33x12.50-15 on his 86

 

[Seabronc]

I was thinking that myself. I have seen plenty of serious and fatal accidents with people who have been beating people out to make that left turn after the red arrow comes on and then one day some factor changes just slightly and they are inside a pile of junk. They had gotten away with what they were doing time after time, why not this one. I have told my kids, don't do that or you might get hurt and they ignore it and keep on doing whatever they want. Then one day they come in screaming and all bloody, oops, and my only response is "I told you so".

Nobody said that Linda couldn't do what she wants to. After all it's her truck. However the spec is what it is, and if something does happen as a result of violating it, you are on your own, "they told you so". The reason a tire shop will refuse to stuff tires on wheels that are under spec is that they put themselves in a position to get sued for big bucks.

So, my recommendation to Linda is a wheel that fits the tire specification as outlined here http://www.tirerack.com/tires/tires.jsp?tireMake=Goodyear&tireModel=Wrangler+DuraTrac&partnum=325QR5WDTOWL&vehicleSearch=false&fromCompare1=yes&tab=Specs .

I agree that a 10x15 wheel would make the profile wide, but an 8.5x15 (the minimum spec) will work just fine. She will probably have a slight rub on the radius arms in a full lock turn, but that can be fixed also.

Linda, I mistakenly said 8x15 before, but the spec is 8.5 minimum.

>-

 

[Rons beast]

Ok, seem like some clarification is in order here.

My suggestion to Linda was for her to make a decision she was satisfied with and not be forced to buy wider rims that she otherwise would not need.

I was grossly not clear on that, and I assumed that she and others would still use common sence in their decision making. ( I am still sure they would).

I also assumed that no knowledgable tire shop would mount a combo that would be grossly unstable and unsafe on a vehicle.

I may have been too optomistic on that thought. Though I trully hope not.

Unfortunatly, there are still those shops that try to upsell unnecessary modifications to those they suspect are not knowledgable.

Kudos to Krafty, and Ogre for making that point and sharing their personal information.

Regarding factory specs: These specs are of the engineering design to be conforming to the manufacturers guidline for minimal production costs and to meet minium set standards, and do not represent the total structural abilities of the truck, especially with other modifications having already been done. ( Linda has a 2" lift...now the suspension and steering geometry is different from factory spec.) My thought was that the factory specs are now no longer the "law" regarding tire fitment. The next step is to ask others here what they have done........that was answered.

Bottom line:

What we all shamefully missed is that Linda stated she had 15x7" rims! A 12.50 on a 7" rim? saddly, NO! 8"rim? Others have done it with good results.

My appologies for any unclear remarks I may have made.

 

[Krafty]

minor correction again, the stock rims for 95 bronco and 150 all but the ultra plain steel wheels are 7.5 " wide ( except for one stye which is also 8").

I ran 12.5 on aluminum 7.5" oem style rims at full pressure, and low pressure for wheeling for 4 years, not one bead issue even at the low pressure

(**** I didn't even balance them)

don't loose any sleep at night over it linda.

 

[Rons beast]

Krafty....you're the Man!

imho..that's what Linda was looking for.

I'll shut up now.