• Welcome to ClassicBroncos! - You are currently viewing the forums as a GUEST. To take advantage of all the site features, please take a moment to register. It's fast, simple and absolutely free. So please join our community today!
    If you have problems registering or can't log into your account, please contact Admin.

Anyone running Method rims know what offset?

AZ73

Contributor
Bronco Guru
Joined
Mar 28, 2012
Messages
3,542
Offset is the distance from the center of the wheel to the inside of the hub mount. This can be positive or negative (negative is towards the inside of the wheel, positive is towards the outside of the wheel.) Backspace is from the rear of the rim to the center of the inside hub mount. Backspace is affected by the wheel width while offset isn't, and 35" tires are affected by the wheel width and the width of the tire and the diameter of the wheel. I'm running 17X9 Methods with a 4.5 backspace (meaning the offset is zero - it's exactly on the center line of a 9" wide wheel although technically it's 12mm, about 1/2 inch because they measure their offset from center from the inside of the rim instead of the outside), with 35x12.7x17 tires. The rear tires don't go past my warfares. The fronts go about 1/2" past the warfares. My tires will hit the frame without the stops dialed in slightly. More backspace, more hitting of frame with 35" tires because more backspace pulls the whole wheel and tire inwards. If you run the same tires on a 3.5" backspace, they'll stick out more.
 
Last edited:

Calibronc66

Full Member
Joined
Dec 15, 2016
Messages
253
Running methods on my 66 went with The Standards cause they came in a 17x9 with 4.5 back spacing


Sent from my iPhone using Tapatalk
 

Madgyver

Bronco Madman
Joined
Jul 30, 2001
Messages
14,701
same wheels as above. 17x9 4.5 bs
stock width axles
1.5" spacers on front axle
2" spacers on rear axle
 

Attachments

  • 120270673_10218391480444437_5092866300616799196_o.jpg
    120270673_10218391480444437_5092866300616799196_o.jpg
    256.6 KB · Views: 55

Rbuddy98

Contributor
Full Member
Joined
Sep 27, 2018
Messages
192
Method 17X9 4.5 backspace 35 inch tires T-Rex arms 2.5 lift with 1/2 inch body lift
 

Attachments

  • C45FF559-DE86-4B8C-8956-3ACEF768E2C1.jpeg
    C45FF559-DE86-4B8C-8956-3ACEF768E2C1.jpeg
    320.1 KB · Views: 78

ba123

Contributor
Bronco Guru
Joined
Oct 29, 2022
Messages
1,752
Loc.
CA
I posted this thread a while back cause it’s not so simple as backspacing. Width matters and I think it’s knowing more.

https://classicbroncos.com/forums/threads/method-wheels-35-tires-8-5-vs-9-wheels.319488/

If you go with an 8.5” wide method rim, you want one with 0 offset, which I think has 4.75” backspacing.
If you go 9” wide, you want -12 offset, which has like 4.6” backspacing.

It also matters where you want them overall. Not all rigs are the same, so best to know what you have and go from there.
 

jonmelton

Full Member
Joined
May 24, 2012
Messages
270
I'm running Methods 17x8.5". I got the 0 Offset, and the wheels tuck under the Bronco completely. Both front and back. I liked a little bit of the wheel sticking out, with my previous wheels I had about 2" sticking out on both sides.

But, like someone said, not all Broncos are the same.
 

ba123

Contributor
Bronco Guru
Joined
Oct 29, 2022
Messages
1,752
Loc.
CA
The tire size matters as well, not just the wheels. Gotta add that to the calculation, so figure the center of the wheel, the tire width. Also why it really helps to figure out what you have on there before deciding. There is a huge variation on tire widths. That’s what sticks out, not the rim, but a 9” wheel that is -12mm offset vs 0 offset 8.5” wheel…

With an 8.5” rim, 0 offset and you have 4.25” on each side of center.
With a 9” rim and -12mm (about 1/2”), you have 4.25” on the outside, and 4.75” on the inside.

That gives an “aha” moment for what backspacing means and how it’s different based on rim size.

But either is the same on the outside and thus your tire is what matters. You can find 10.5” tires or 12.5” tires. But there are other manufacturers with different offsets or you can use spacers.
 

Mostly70

Newbie
Joined
Jun 15, 2016
Messages
9
Loc.
Nothern Virginia
Thank you for this info. On my 1970 Bronco, I bought Method 17x8.5 with 35x12.50 Falken Tires. Look and work great. Anyone know the recommended tire pressure for highway driving? Sidewall reads 65# but that sounds crazy high. Thanks.
 

ba123

Contributor
Bronco Guru
Joined
Oct 29, 2022
Messages
1,752
Loc.
CA
65 is prob just the max. I’d think you want something between 35-40.
 

DirtDonk

Contributor
Bronco Guru
Joined
Nov 3, 2003
Messages
47,645
No tire lists the recommended tire pressure for a particular vehicle. It's ALWAYS the "maximum safe cold pressure" listing on the sidewall.
On a truck tire, especially those larger than 15" diameter, it's usually WAY over what you will end up running. Wayyyy over!
There is no one recommended pressure. As said for the fitment part of the discussion, every Bronco is different, so your tire/wheel/vehicle weight combination might be different from others.
But a typical starting point is to start at 30 and come down from there as needed. Many of us run down into the low 20's in the rear and the high 20's to low 30's in the front.

Here is where the "chalk test" or similar comes in handy. The rears are easy to find that sweet spot, but the fronts are not quite that simple especially if you have lots of camber and/or toe-in.

The tires with heavier load ratings, such as a Load Range E vs a Load Range C will also typically have higher max pressure ratings. My pickup's 16" E-rated tires for example have an 85psi max rating. Funny thing though, is that I run almost that much when fully loaded up! Otherwise I probably have 50 in the rear and 65 in the front on my particular truck.
The '71 Bronco on the other hand, with the crappy Thornbirds with a 35psi max, runs about 35 in the front and 30 in the rear.
The '68 with BFG 31" KO's (I think?) I run about 22 in the back and 32 in the front. I've tried anywhere from 20 to 40 in them and this is what they (and I) seem to like.

If you don't do the chalk test right up front, keep an eye on your tire treads and sidewalls. If you see tire wear down the side it means you have too little pressure (possibly by a lot!) and if you see wear only in the middle, it means you have too much pressure. This is why the rears are the easiest to judge. Because they sit relatively flat on the ground compared to the fronts. And they don't have to go through the same turning awkwardness as the fronts.
If you see the dirt/dust worn off in the middle and the dirt remains on the sides of the tread, keep letting air out a couple of pounds at a time until it's about 1/4 to 1/2 inch from the edges. This leaves some leeway if you load up your rig heavily on a regular basis.
Otherwise, let it wear off right out to the edge of the tread. If you're not going to be carrying extra weight, the extra safety factor of more pressure is not needed. And you can always add it down the road if you do decide to carry a load of firewood!

paul
 

Sendero

Sr. Jr. Member
Joined
May 12, 2022
Messages
64
Method 17X9 4.5 backspace 35 inch tires T-Rex arms 2.5 lift with 1/2 inch body lift
If you don't mind me asking where did you find a 1/2" body lift? Those 285/75/17s look great, I am thinking about going with that tire size but afraid the narrower tire (11.5 instead of 12.5) wouldn't look right on the 9" rims but yours seems to look correct. Thoughts?
 

Rbuddy98

Contributor
Full Member
Joined
Sep 27, 2018
Messages
192
I made the 1/2 inch spacers out of aluminum and added to the stock body mounts.
 

Seattle66

Contributor
Full Member
Joined
Dec 4, 2012
Messages
223
Really happy with my new Method Blacks Rims and Tires.
Rims: Method MR701, 17 x 9, -12 offset
Tires: BFG MT's 35 x 12.5R17

I purchased from Discount Tire because they had some rebates. Key note is their website is annoying and will NOT let you checkout without entering your vehicle. They don't even have 66 Bronco in their list. I tried fooling it by selecting a bunch of other trucks with same wheel pattern and that didn't work. I went into a Discount Tire and the guy was able to override it and place the order for me in the store.
 

Attachments

  • Bronco Black Rims 1.jpg
    Bronco Black Rims 1.jpg
    122.5 KB · Views: 26
  • Bronco Black Rims 2.jpg
    Bronco Black Rims 2.jpg
    160.4 KB · Views: 27
Top