[Outlaw Ram]

I still have the factory 16x7 rim on my truck with 285/75/16's on them. I want a slightly wider tire like 2 inches wider but I still want the same height. What can I fit on that type of rim thats 2" wider than my current tire??

 

[JasonB]

Actually, you are already pushing things with the 285's on a 7" wheel. To go 2" wider, you would need to go to an 8"-10" wide wheel.

 

[DirtyDodge4x4]

Plus, you'd probably have to get a rim with a much smaller backspacing and negative offset. Remember, the 285/75/16 is basically the equivalent of a 33x11.5 tire, and that's already pushing it. Some folks experience rubbing on the control arms even with the 285.

If you went with a 305/70/16 (equivalent to a 33x12.5), it'll work, but it will rub if you're not lifted. RufusTheRam over on MoparChat ran 305's on his stock chrome rims before getting a lift and new rims. Doing so on such a narrow rim, however, will wear out the center of the tire faster.

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[Outlaw Ram]

My truck has a 4 inch trailmaster suspension on it so I shouldn't have a problem there. Which would be better, a 305 on a 16x7 or 305 on 16x8?

 

[Smoke Eater]

Definatly a 16x8. There is a picture of my truck around here somewhere. It has 305's on 16x8 and a 3" lift.

 

[DirtyDodge4x4]

Yep. That sounds like a perfect combo. Ever thought about going up to 315's (35x12.5)? You oughta be able to fit 'em easily with the 4" lift.

 

[Outlaw Ram]

Well, isn't a 305 a 35" tire?? because in the good old state of Maine a 35" tire is the biggest size you can go.

 

[DirtyDodge4x4]

Nope. 305 is like a 33x12.50. 315 is a 35x12.50.

 

[Outlaw Ram]

My tires are fairly new so I won't replace those for a little while, but I would like to get new rims soon. How well would 285's fit on a 16x8 rim for the time being until I get new tires?

 

[JasonB]

I ran 285/75/16 BFG AT's on my 16x8 wheels and got nearly 45,000 miles out of them and they where only rotated twice. The 8" wheel is perfect for the 285's.

 

[DirtyDodge4x4]

Yep. That's what I'm running now, and my tires don't look like they're gonna wear out any time soon.

 

[dubge]

I have stock rims and I thought they were 16x8??? So if they are 16x7 my 285's will wear out quicker????

 

[JasonB]

I don't recall which year they changed but the older Rams had 16x7 stock wheels and the newer ones have 16x8's. It was either '99 or '00

 

[DirtyDodge4x4]

My '01 came with 16x7 chrome rims. Dubge has the 16x7 aluminum spoke rims, I believe. If I recall correctly, it's the 3/4-ton Rams that have 16x8 rims.

Dubge, they shouldn't wear out that much faster as long as you're keep tabs on the air pressure. If you fill 'em to max PSI, that'll tend to pull up the sidewalls a bit, thus putting more pressure on the center of the tread.

One way to find you optimum tire pressure and to ensure that you're getting maximum tread contact is to draw a chalk line straight across the tread while sitting in a driveway or parking lot. After driving back & forth a little, the area of the chalk line that's making most contact with the pavement will wear off. The idea is to adjust the pressure so that all the chalk wears evenly.

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[dubge]

Ah that is a good one!!! My rims are off a 97 or 98 and I am not sure if it was a 1/2 or 3/4 oh well I thoght they said 16x8 last time I had the tires off but I don't recall

 

[FNG]

Can I put 275/75/16 on 16x7 rims without rubbing? Also, I have a 3.55 rear, will 275's put too much strain on it?


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[99QuadCab]

FNG, I don't think the 275's will cause a problem with rubbing or your gears. I have a 99 Quad Cab 1500 with the 5.2L engine, automatic transmission, and 3.55 gears. The stock tires were 265/75R/16 and I don't think going to 275's will be a problem. The diameter of a 265/75 is 31.6" and the diameter of a 275/75R is 32.2" so there is no need to change gears. I need new skins and I'm debating between buying 275/75R/16's on my stock rims or getting a 3" lift, new wheels, and 305/70R/16's. I have to do some creative financing to do that though. If you get the 275's let me know how your truck rides.

 

[FNG]

99QuadCab, Thanks again for your help. My 99 1500 came with 245/75/16....when I went to price tires, they told me to make sure that putting 275's on wouldn't damage anything.....I HATE BEING THE FNG, but somebody's gotta be it. I'll keep you posted on the 275's. Thanks again.

 

[FNG]

Just to make sure:
Can I put 285/75R/16's on stock 16x7 rims? I was informed by a tire retailer that "there is no such size as: 275/75R/16". I'm having my ProComp 3" lift installed this weekend and I still have my 245's. Go with 285's or 265's?

 

[Outlaw Ram]

I put 285's on a 16x7 stock rim and they rubbed because they don't have a good backspacing and are too narrow to support an 11.5" wide tire. If you get the lift definitely go with the 285's cause the 265's will be lost in the fenders. Trust me.