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Discussion Starter #1
Any body got 295/50/20 on 20 inch Chrome Clads on 4th Gen?

I'm 2wd stock suspension.

Wondering about rubbing (it's 11.6 wide, but only 31.6 tall).

Pics?

I know i've touched on the subject for 2 years now since I bought my truck in 2010. But it's a damn shame the Chrome Clads did not come with an extra 1/2 inch of negative offset so we could fit wider tires without spacers. Those 9 inch wide rims would have been perfect with +0 offset so you could fit 305/55/20 and even 325/50/20 tires with no spacers, lifts or mods.
 

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I'm pretty certain you can't fit anything wider than 285 on the newer third gen and fourth gen trucks without rubbing on the UCA. I have also read about guys putting 305s on and only experiencing slight rubbing when turning.....so maybe even if the 295s did rub it would only be at or near full lock.
 

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I had 305/55's cooper zeon ltz on the stock chrome with only rubbing on the sway bay close to full lock no control arm rub. They fit the same without the level and with made no difference. I have a 2wd. I have 285/60 dura Trac that would have probably fit with the chrome wheelsbut I.had already sold them. I have a +13mm on the new wheels but it is close so I would say that a 295 on stock wheels would.probably rub the sway bar at lock.
 

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I went with the Nitto Trail Grapplers 295/55 R20 on the original rims. I did have to use a 1/4" spacer cuz it was rubbing due to the wall tread that sticks out on the back of the tire. I leveled with performex 2.5". The width is what gets you not the height. If I would have gone with a the terra grapplers it wouldn't have rubbed but i wanted a more aggressive looking tire plus I drive on caliche roads to get to my worksite. I have more pics in profile.
 

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Your truck looks great. I would like tires like those on mine.

Question: If you lift the truck do you void the warranty?
 

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Lifting, or any other mod for that matter, only voids the warranty applicable to the part or parts that are directly modified and any part that could receive above normal wear and tear due to the modification. Put simply, no it will not void your warranty. However, the dealer may deny any warranty claim for suspension components or other parts that could be argued as being affected by the lift.
 

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I'm pretty certain you can't fit anything wider than 285 on the newer third gen and fourth gen trucks without rubbing on the UCA.
I've ran 305/50R20 Terra Grapplers since 2010 on stock sport chrome clads,
no spacers, no rubbing...and my RCSB 4x4 has a Ground Force 2/3 drop!

Grapplers measured 12.2" x 32.2" new, now nearly bald and replaced with General Grabber AT2's today
Same 305/50R20 size (12.4" x 32" mounted) and still no rubbing, no spacers, but new Sport wheels off a 14' Ram.









upper control arm clearance is a little less than a 1/4"

 

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You don't have any rubbing even when turning at or near full lock? It looks like something has been rubbing the UCA unless you or the installer did that by hand.

I know they say every truck is different but I would say you are the rare exception. Most everything I have read has indicated at least slight rubbing with anything 295 or wider, the exception being the guys with the 20x8" rims who seem to be able to clear a 295 fine.
 

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My friend runs 305/45 r22 on his crew cab with stock rt wheels with no rub at stock hight. Some people just get lucky I guess.
 

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I rubbed that dirt off with my gloves lol, installed them myself in my driveway. No one touches my truck but me :D
...and I know for a fact many others have had the same results, not a rare exception at all.

People need to understand the difference between actual mounted tire widths vs a number stamped on a sidewall, (in addition to basic suspension geometry) instead of just re-tweeting what someone else "heard" about rubbing issues.

It's impossible for that distance to change whether the tires are turned to full lock either direction, or the suspension cycled fully up or down. The upper A arm ball joint is a pivot point, so that distance to the tire is constant unless you loosen your lug nuts to allow the wheel to move independent of the spindle.

I had 1/4" spacers on hand 4 years ago because so many said they would rub, and I never needed them. My Bro at the body shop assured me he could easy to remove a little material off the A arm with an angle grinder instead of using spacers, if I needed more room.

My new 305/50R20 Terra Grappler from over 4 years ago...(12.2" mounted width)



A view from the front sway bar at full left steering lock ,
passenger side, shows 1/4" upper A arm clearance does NOT change at top and 1/2" sway bar space up front...that's where a larger diameter 33" tire may hit, and some 2WD's because they have slightly different sway bar setup.



I dont know why anyone would limit stock wheels to 285 wide tires.
R/T's come stock with those (same +19 offset as stock 20" x 9" Sport/Laramie wheels).

Looks like lots of room to me...



view from the top..


almost 3/4" space from side wall to upper A arm would easily accommodate a 305 tire.
Most guys running SRT10 replica wheels have 305/45R22's on wider 10" wheels with even more positive (tucked in) offset (+25)

Like me, spacers on hand "just in case" and never needed: http://www.ramforumz.com/showthread.php?t=179754

Back to the OP's question, an 11.6" wide 295 should easily fit if my 12.4" wide 305 works.
Because there is a chance that every truck is different, measure the space from your stock tire to the upper A-arm.

That R/T pic is from a couple years ago, I should swing by the dealers lot and snap a few more pics
to see if the new 14's clearance has changed much, but somehow I doubt it's any different.

The difference from a 275 to 305 tire is about 30mm (1.18") width
if you have a bit more than a half inch clear, that's all you need for "most" 305's

I say "most" because some 305's actually measure 11.6" wide and some are as much as 12.6" when mounted on the recommended width rim.

I always check the manufacturers website for actual size mounted width on a 9" wheel.
I've even seen some 295 "labelled" tires with heavy side lugs actually measure 12.6" wide that may explain why there's so much inconsistency among reports of rubbing or not.

My best guess is my 12.4" Grabber is the upper limit without breaking out the grinder (or 1/4" spacers)

People need to pay less attention to a number stamped on a sidewall and more to Actual Mounted Measured Widths.
If you cant find that info on the Tire Manufacturers website, try TireRack.com ;)
 
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