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View Full Version : Wheel and tire HELP!!?!?!


trd06john
02-12-2006, 06:23 PM
hey, guys.....heres the deal..i have an 06 TRD sport package model... w/ the 17" wheels .... so i put my 3" lift on and i was going to go w/ a 285 75 17 tire,. i ran to the trust local mom and pop tire shop to get the install on my stock 17" wheels, but the tire is a bit to wide and hit my upper control arm ( the A arm)... since im stuck w/ these 17" tires... does anyone know what offset or backspacing i should get?????? thanks J

thegreydog
02-12-2006, 06:27 PM
I am about to do the same, so I have to ask a question. Why did you not go with 285/70/17's?

dcpunk123
02-12-2006, 07:10 PM
I am about to do the same, so I have to ask a question. Why did you not go with 285/70/17's?
it wouldn't make a difference they are the same width.
donahoe recommends a 5" backspace on a 285/75/16
see second page (http://www.donahoeracing.com/assets/prod_ov/05tacoma_prod_ov.pdf)

thegreydog
02-12-2006, 07:51 PM
Ok, I am not a tire expert and was only basing it off some research I have done. I was told that with a 3 inch lift I could clear 285/70/r17 on factory wheels. So what is the difference in 285/70's and 285/75's?

white_eskimo
02-12-2006, 07:59 PM
err honestly i have no clue wtf this thread is doing in 4x4 tech... and plus, if you took the time and searched you could find out. go to google.com and search for a tire calculator and see for yourself what the difference is.

LAW
02-12-2006, 08:08 PM
hey, guys.....heres the deal..i have an 06 TRD sport package model... w/ the 17" wheels .... so i put my 3" lift on and i was going to go w/ a 285 75 17 tire,. i ran to the trust local mom and pop tire shop to get the install on my stock 17" wheels, but the tire is a bit to wide and hit my upper control arm ( the A arm)... since im stuck w/ these 17" tires... does anyone know what offset or backspacing i should get?????? thanks J
you could get some camburg uca's to replace the stock arms and eliminate rubbing http://camburg.com/tacomaP05.html

thegreydog
02-12-2006, 08:14 PM
White Eskimo

The other forums deal with alot of other year models. The guy was simply asking a question related to tires on the later model 05-06 pertaining to wheeling. I do believe that this section of the forum is for the 05-06 models and tires are used for wheeling which is 4x4'ing, so his question would comply within the guidelines.

By the way I did take the time to search for it and I actually did it on google, but I do appreciate the suggestion. However, it did not explain to me why or why not it would or would not fit on my application, therefore I reposted with a question.

By the way, I was actually a member way before you came along, I believe it was in 98-99 in the GA chapter, and am not an idiot, if you do not wish to help out, how about move on...

Thanks law116 for the suggestion.

white_eskimo
02-12-2006, 08:40 PM
Ok, I am not a tire expert and was only basing it off some research I have done. I was told that with a 3 inch lift I could clear 285/70/r17 on factory wheels. So what is the difference in 285/70's and 285/75's?


By the way I did take the time to search for it and I actually did it on google, but I do appreciate the suggestion. However, it did not explain to me why or why not it would or would not fit on my application, therefore I reposted with a question.

are you shitting me? i plugged your numbers into a tire calculator and i found out that the 285/75/17 had a diameter of 33.83''s whereas the 285/70/17 had a diameter of only 32.70''s. the 285/75s are more than an 1'' taller than the 285/70s, thus you will obviously have rubbing if the manufacture of the lift claims that 285/70 is the biggest you can go. i got these stats from http://www.1010tires.com/, but every tire is a little bit different so i suggest you look into it...

By the way, I was actually a member way before you came along, I believe it was in 98-99 in the GA chapter, and am not an idiot, if you do not wish to help out, how about move on...
i could care less for how long you have been a member. this folder was dedicated for "late model 4x4 tech". Your post belongs in the "tires/wheel" folder or the "suspension" folder. Just because you own a late model tacoma doesnt give you the right to post all the shit in the world in here. When someones floor mats in there new 06 tacoma get stained with mud after wheeling all day, they dont post about it in here. they post about it in the "interior" folder. Sorry if i seem a bit harsh, and i understand you havent been here in a while, but its nice when everything falls in the right category so you dont have to sift through the shit to find what your looking for.

thegreydog
02-12-2006, 09:04 PM
are you shitting me? i plugged your numbers into a tire calculator and i found out that the 285/75/17 had a diameter of 33.83''s whereas the 285/70/17 had a diameter of only 32.70''s. the 285/75s are more than an 1'' taller than the 285/70s, thus you will obviously have rubbing if the manufacture of the lift claims that 285/70 is the biggest you can go. i got these stats from http://www.1010tires.com/, but every tire is a little bit different so i suggest you look into it...


Now thank you for being helpful. It would be nice if there were all new sections dedicated to the later models. That way there would not be a ton of confusion when researching new models only. When I ordered my lift I asked the guy about running bigger tires on my factory wheels he said the 285/70/17's would work, but I may have some rubbing in extreme situations. That is why I suggested it to the guy that started the post. Then someone replied to me saying they were the same size, that is why I posted the question you responded to. I did look it up and I was responding back to him, knowing they were different to see what he had to say.

So all I was trying to do was ask this guy if he knew he could use the 285/70/17's on the factory wheels.

Thanks

J*C*M
02-12-2006, 09:08 PM
what you are missing is its the width not the height thats making it rub on the UCA thats why wheel spacers will help

thegreydog
02-12-2006, 09:12 PM
Exactly, the 285/70/17's are actually 32.7" x 11.2" then they will be fine on factory wheels without a lot of rubbing.

trd06john
02-12-2006, 09:20 PM
ok guys.....call me what you will ...but i messed up i have a 285 70 17.... also guys... calm down.........its a simple Q that turned into an arguement... u CAN NOT run a 285 70 17 on ur stock TRD sport model wheel.... it wont work i listen to random tech guys and the ALL told me the same shit" it can work"... now im stuck buying wheels.....which isnt a problem but i just need to know what i need so i can solve my problem......can anyone help me out?? agian i ask does anyone know what spacing i should use or has anyone gotten this to work...also thanx for the idea about the new UCA but thats really getting into it, i was just hoping to solve this w/ wheels.... thanks for your time John

J*C*M
02-12-2006, 09:25 PM
If you wanna fix your problem on the cheap and quick a set of wheel spacers

OR_05Taco
02-12-2006, 09:32 PM
Exactly, the 285/70/17's are actually 32.7" x 11.2" then they will be fine on factory wheels without a lot of rubbing.

Not true actually. I had 285/70R17 Toyo ATs before I got my MT/Rs. They were on the factory wheels and rubbed quite a bit on the UCA and the frame. Not to the point where you can't run them, but if you get anywhere near full lock, they rub.

trd06john
02-12-2006, 09:37 PM
hmmmmmmm weird.... now the brand wouldnt matter would it?

scottB
02-12-2006, 09:38 PM
ok guys.....call me what you will ...but i messed up i have a 285 70 17.... also guys... calm down.........its a simple Q that turned into an arguement... u CAN NOT run a 285 70 17 on ur stock TRD sport model wheel.... it wont work i listen to random tech guys and the ALL told me the same shit" it can work"... now im stuck buying wheels.....which isnt a problem but i just need to know what i need so i can solve my problem......can anyone help me out?? agian i ask does anyone know what spacing i should use or has anyone gotten this to work...also thanx for the idea about the new UCA but thats really getting into it, i was just hoping to solve this w/ wheels.... thanks for your time John
I have american racing chambers 4.5" backspace and 0 offset. wilth 285-75-16 bfg at. They are 32.8" in diameter. No rub after triming w/ 2" of lift.

You do not have to buy new wheels, a spacer will move the tire away from the control arm.

Could you explain why you can't mount those tires on the stock rims? If you search this topic you will see it has been done many times.

mikerox
02-12-2006, 09:44 PM
hmmmmmmm weird.... now the brand wouldnt matter would it?yup, diferent brands run diferent tread profiles and sometime a tire is wider or narower than onother tire the same size from a diferent manucturer. the type matters even more, i.e. mt vs. at.

trd06john
02-12-2006, 09:54 PM
the guy at the tire place called and said that the tire was to wide and was hitting the UCA .....and said he couldnt help me out.....

trd06john
02-13-2006, 08:15 AM
quick update for u all........ i called the guy that i took her to, to get the tires installed he said that he tried to lift the truck from the lower control arm.... so im thinking thats why he couldnt get the tire to fit due to suspension compression....

cole45
02-13-2006, 04:07 PM
quick update for u all........ i called the guy that i took her to, to get the tires installed he said that he tried to lift the truck from the lower control arm.... so im thinking thats why he couldnt get the tire to fit due to suspension compression....

I would reccomend 2.5" lift and trim the areas that rub. It all depends on your backspacing. With stock rims you will rub a uniball UCA with the 285/75, and you should not use stock rims for this size tire anyway. You'll need wider rims and 5-5.5" backspacing, so use a backspacing chart and measure the distance to the control arm, most tire shops can do this for you.

Probably should be in the wheels/tires section, but there's an ongoing 'lowering' question and suspension questions that I see on here more than anything else.

trd06john
02-13-2006, 06:59 PM
hey guys here the update i went ahead and bought some wheels today... w/ a -4 backspacing.... they should be in tomorrow. ill post pics asap.. thanx J

cedarbarn
02-13-2006, 07:19 PM
I run 285/75/16 tires on my stock 05 16x7 steel rims. I have a slight amount of rub on my upper control arms, just enough to take the paint off when at full wheel lock. 5 inches of backspacing would put the tire CLOSER to the A-arm. The lower the backspacing number, the farther out the rim sits.

The tire clearance is 1/4 of an inch from the upper A-Arms. No problems with over 18,000 miles on the lift/tires daily driver/offroading.

I tried some rockcrawler series 51 16x7 rims, they dont fit. The backspacing is perfect, but the metal from the inner ring (where the lug nuts are) connecting to the rim does not angle out fast enough to clear the calipers.

16x8 series 51 rockcrawlers hit the spindle.

SR-71Taco
02-17-2006, 11:51 PM
The backspacing is perfect, but the metal from the inner ring (where the lug nuts are) connecting to the rim does not angle out fast enough to clear the calipers.

16x8 series 51 rockcrawlers hit the spindle.

So do those wheels hit "the calipers" or "the spindle" or both? If they hit the caliper, is it much? I only ask because there are a few guys on here running wheels that technically don't fit but once they did some minor filing of the outer edge of the caliper, the wheels fit.


I'm just going to have to find a local shop that has what I want in stock and do a test fit for me.

genrec
02-18-2006, 09:35 AM
hey guys here the update i went ahead and bought some wheels today... w/ a -4 backspacing.... they should be in tomorrow. ill post pics asap.. thanx J


bump for update

cedarbarn
02-18-2006, 01:49 PM
So do those wheels hit "the calipers" or "the spindle" or both? If they hit the caliper, is it much? I only ask because there are a few guys on here running wheels that technically don't fit but once they did some minor filing of the outer edge of the caliper, the wheels fit.


I'm just going to have to find a local shop that has what I want in stock and do a test fit for me.

The 16"x7" do not hit the spindle, they hit the caliper.

I know a lot of guys here in Dallas with shaved calipers... but they were 04 and previous calipers. I personally dont know of anyone with an 05+ truck with shaved calipers. The calipers are completely different. The 04- truck calipers had a some extra casting that can be shaved off without effect to the functioning of the caliper. I dont know if that is the case with the 05+ calipers.

SilverStreak05
02-18-2006, 04:55 PM
I'd be leary about shaving any metal off the new calipers. My wheels clear, but there is basically zero space behind them. There's been a few people who rubbed and let the wheels do the shaving for them. They seem to be ok but only time will tell I guess.

SR-71Taco
02-18-2006, 08:56 PM
I'd be leary about shaving any metal off the new calipers. My wheels clear, but there is basically zero space behind them. There's been a few people who rubbed and let the wheels do the shaving for them. They seem to be ok but only time will tell I guess.


Would you mind giving me some specs on the steelies? As much info as you have would be very helpful. I'm having a rough time finding someone that knows which ones will fit these trucks since they're relatively new. Most shops have no clue what will fit and will only test fit what they have IN STOCK... which is understandable.

Thanks man !

--Robert