Would a 20" by 10" rim with a 325/60/20 nitto terra grapler fit on my fx4 with a daystar kit . The tire is 35.1" tall. Thanks.

 

I don't know if it'll fit with just a 2.5 inch lift, but it sounds like it would look good, with enough lift of course.

 

325/60/20 is a 35.35 inch diameter tire. It is also 12.8 inches wide. I highly doubt that it will fit with the Daystar spacers. that would definately be pushing the limit. it might depend on backspacing, but you'd be cutting it close. you are better off with a real suspension lift or a smaller tire.


in case anyone is wondering how I arrived at my numbers, here is how tire size calculations work.

325 mm / 25.4 = 12.79 inches (width of the tire tread), 25.4 is just a conversion from mm to inches.

12.79 x .60 = 7.67 inches (width of sidewall from rim to tread.) the "60" in the tire size is the ratio of tread width to sidewall width, in this case the sidewall is 60% of the width of the tread.

7.67 x 2 + 20 = 35.35 inches (tire diameter). since there are two sides of the tire wrapped around the rim, you double the sidewall width and add the diameter of the rim to get the total tire diameter.

hope this helps.

 

I got the size from the nitto web page . It says 35.12" tall and 12.91" wide. So how much will a real lift cost and how much of a lift would I need. I really wouldn't like it that lifted. Thanks

 

The Performance West Group modded Lariat thread I posted this weekend showed a truck with only a Daystar equivalent lift, fitted with BF Goodrich LT355/55ZR22 G-Force T/As on 22 x 10 Oasis Alloy Wheels. The tire dimensions are 37.7 x 14. Now, I don't know if they shaved anything when installing the body kit, so I could be off base, but it doesn't look like they did.

I have seen 33s on a Daystar lift on an otherwise stock truck, and to my eye, it appeared there would be enough clearance to allow room for mounting 35s. Granted, this does not leave much in the way of room for wheel articulation, but if the goal is more aesthetic than functional (that would be a whole 'nuther discussion...), than it looks to be possible to mount the 35s with just a front spacer lift.

2kfrc -- read the bigger tire thread for more info.

 

Thanks for your help guys . I guess I will give it a try!!! I will be ordering a set of welds very soon.

 

let us know how it goes 2 kfrc! we're like in-laws, we expect pics of the baby!

 

My apology to the group, as it looks like I may be passing along erroneous information...

Last night I was pondering the mods done on the PWG Lariat, when it occured to me that the wheels were speced in the article as 22 x 10, which when I considered the supposed 355/55 22 sized G-force tires, which would be 14 inches wide, well, it just didn't add up. If you look at the pics, there is no way a 14 inch wide tire is not going to have a pronounced sidewall bulge, were it mounted on a 10 inch rim -- which is a fitment that would be ill advised.

Considering further, I remembered the first 22 inch G-force tires were produced for the Hummer tuner market (see: this article). Those tire are sized at 325/55 22, which gives you dimensions of 36.1 x 12.8. Looking at the photos again, I think that is more than likely what size is on that truck. Apparently the author had an error and I parroted his mistake. Sorry about that.

More stuff on mounting 35s...

I had read a thread on FTE that discussed a member mounting Nitto Terra Grappler 325/65R18 (34.6 x 12.8) with just a Daystar lift, and it looked like he was going to be able to do it -- now he reports the tires don't fit, by something like a quarter of an inch! Now, there are several variables here, and the post was not very detailed, so I don't exactly know what the problem was; ie. did the tires rub a little at full wheel turn in; or were they too large a diameter, so as make them unmountable for the size of the wheel well opening?

Bottom line here: Don't take anything you read in these groups as the gospel -- especially if you are intending to make a tire purchase over the Internet. If you are trying to push the fitment envelope at all, I would highly recommend you work witha local tire shop to insure yourself of getting wheels and tires that fit correctly and are safe to run.

 

Thanks fomoco I will be going to a local shop to see if it will fit .

Brewmaster as soon as I get it done I will post pics.

 

The dealer where I bought my truck has added Daystar and 35x12.50x18 BFG MT's on stock wheels on 3 of his trucks. $3750 add on

 

Thanks for the post Allstar. Not only is that a huge gouge, but the dealer is mounting tires on narrower rims than is recommended by the tire mfg. Those tires are speced to be mounted on rims between 8.5" & 10.0" in width. The width on all the F-150 OEM wheels is 7.5". Narrow rims aside, it's nice to get some confirmation that 35s (actual diameter is 34.8") will fit with just a spring spacer lift.

 

isn't it a bit dangerous to have them mounted on too narrow of a rim? i didn't know the stock 18s were 7.5", that seems a tad bit narrow to me. not that you are wrong, but i wish Ford put wider rims on the truck.

 

if they put a 34.8" do you think a 35.12" will make that much more of a diffrence

 

It is definitely not a safe practice to exceed the tire mfg recommendation for wheel fitment. We are talking about rims that are 5" narrower than the tread width! This is exceeding the limits the tire mfg has suggested (they are interested in mitigating liablility) by an additional inch. That may not sound like much, but dislodging the tire bead and causing a blowout is no small matter at highway speeds.

A common recommendation, is that you try to not exceed 2" of difference between the rims size a tire width. For offroading purposes, some willl exceed that suggestion by an inch or two, to give the rims more protection and allow more rubber grab on rocks. More serious offroaders often use beadlocking rims for extra insurance, especially while running very low tire pressure.

BFG says the max difference should be no more than 4". BFG could sell many more tires suggesting you could mount them on 7.5" rims -- but they don't. That says something to me; namely they don't think it is a good idea to do so. No tire mfg wants a PR disaster like Firestone had.

2kfrc: I dunno, but the guy (from the FTE thread) with Nitto tires was only a quarter inch shy of having those tires fit, and they were .2" smaller than the 35" BFG M/Ts. Somehow the amount of lift gained form the Daystar is different from the one Allstar saw on his dealer's lot. Really, if you are that close to having the tires fit, then you should really give some serious consideration to either going with 33s, or looking at lift kits that get you at least 4" of lift.

 

Truck Trend mentions the Performance West truck here. Might be some helpful, might not.