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Old 05-27-2020, 03:32 PM #1
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What's Up With My Wheel/Brake Size?

My 2004 4Runner SR5 has 17" wheels with 265/65-R17 tires. But I also have the WG brake calipers that RockAuto shows are for 16" wheels.

I replaced my original calipers last year that were stamped WG with the NAPA equivalent and a set of 319mm calipers because that's what RockAuto shows for WG calipers. I didn't check my wheel size because I assumed I had the 16" wheels and all the parts I bought matched up in size and appearance with the parts that were on my 4Runner.

I probably should have noticed this years ago, but I haven't had to put tires on it yet and I looked at the tires yesterday and realized they were 17s.

So now I'm wondering if the previous owner put the bigger wheels on it. I can't imagine it came from the factory this way. And if the calipers ever freeze up again, can I upgrade to the WL or WH calipers and get bigger rotors? I feel like I missed an opportunity to get bigger brakes haha. Has anyone else run into this before or after buying their 4Runner?
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Old 05-27-2020, 03:44 PM #2
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Quote:
Originally Posted by djpope09 View Post
My 2004 4Runner SR5 has 17" wheels with 265/65-R17 tires. But I also have the WG brake calipers that RockAuto shows are for 16" wheels.

I replaced my original calipers last year that were stamped WG with the NAPA equivalent and a set of 319mm calipers because that's what RockAuto shows for WG calipers. I didn't check my wheel size because I assumed I had the 16" wheels and all the parts I bought matched up in size and appearance with the parts that were on my 4Runner.

I probably should have noticed this years ago, but I haven't had to put tires on it yet and I looked at the tires yesterday and realized they were 17s.

So now I'm wondering if the previous owner put the bigger wheels on it. I can't imagine it came from the factory this way. And if the calipers ever freeze up again, can I upgrade to the WL or WH calipers and get bigger rotors? I feel like I missed an opportunity to get bigger brakes haha. Has anyone else run into this before or after buying their 4Runner?
I believe all the 4th gens came with either 17" wheels or 18" on the 06+ limiteds. My sr5 with the smaller brakes has these ugly 5 spoke 17" wheels. The smaller brakes will work with some 16" wheels, so maybe this is where the confusion is? What wheels do you have?
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Old 05-27-2020, 04:11 PM #3
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Front brake size comparison

Front brakes question

13WH Vs 13WG Calipers question? - Toyota 4Runner Forum - Largest 4Runner Forum

Rotor size question

Rotor size "16 or 17?"
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Old 05-27-2020, 04:30 PM #4
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Thanks Bossman! Based on the info in these links I can use the WH caliper and larger rotor, but I would need to trim my dust shield or it would interfere with the bigger rotor. I guess it's not that uncommon to have the larger 17" wheels with the small brakes.
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Old 05-27-2020, 04:34 PM #5
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Originally Posted by y=mx+b View Post
I believe all the 4th gens came with either 17" wheels or 18" on the 06+ limiteds. My sr5 with the smaller brakes has these ugly 5 spoke 17" wheels. The smaller brakes will work with some 16" wheels, so maybe this is where the confusion is? What wheels do you have?
Mine has the 17" 5 spoke wheels in your picture. When I look up tires for my model year they don't even have an option for 18, only 16 or 17 is available.

I don't normally have strong feelings about wheels, so I'm fine with these. I have seen some on newer Tacomas that I like more, but at this point I'm not investing money in new wheels.
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Old 05-27-2020, 05:10 PM #6
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My '03 V8 LTD, That I bought used has the wheels pictured and when I went to do the brakes I was surprised it had the "smaller" rotors too, as all I read said they should be the larger. Anyway, I upsized with StopTech rotors and NAPA calipers and all is well.
The brake shields needed to be bent back a little ( what's left of them!!).
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