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Old 01-17-2008, 12:39 PM   #1
 
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Larger AT's on stock 20's

Has anyone run toyo open country 305/60/20, or BFG's AT 285/65/20? I am thinking about both of them. They both stand about 34.5 inches tall. I want something taller than stock, but I think 35's might be too big. I am going to level the front. Also thinking about dropping to an 18 inch rim and running 325/65/18 which is about 34.5 inches tall. I can't make a decision, b/c I haven't been able to see them on a truck. I'd love to see some pics if you got em. This might sound dumb, but how do you get the pic to the left under your name? Not good with that stuff. Oh ya, should I stay away from load range E tires on a half ton? 2 of those tires are E Any help would be much appreciated.
Thanks

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Old 01-17-2008, 01:54 PM   #2
 
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Larger AT's on stock 20's

I forgot, I had also been looking at 315/70/17 on aftermarket 17x9's. I am having trouble making up my mind. The 17 inch package is definately cheaper. Does anyone have any good pics of these? Thanks again
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Old 01-17-2008, 03:51 PM   #3
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Larger AT's on stock 20's

Fireram....i just purchased tires myself. These 20 inch versions are not to cheap. I would look at Nitto,Toyo,Copper LTZ or BFG's. i had the same thought about dropping the rim size down to save some cash.

I finally went with the 305/55/20 in BFG. If you level your truck our you should be able to run the 34.5" or a 35" tall tire. Expecally if you have a 4x4 i think you have more clearance.

Some guys in HTC are running 305/60/20 's maybe you can get some good input from them on this size.

Good luck on your choice.
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Old 01-18-2008, 09:07 PM   #4
 
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Larger AT's on stock 20's

Thanks for the advice. I have been trying to find 305/60/20 at the tire shops but haven't been able to find them. I was told at a shop here in KC that I wouldn't be able to run 305's on my 06 stock 20's b/c it would rub. I guess to newer 20's offset is a little different than the older 20's. I priced BFG 285/65/20. WOW! expensive. It's a 34.5inch tire, which is what I want.
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Old 01-19-2008, 09:11 AM   #5
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Larger AT's on stock 20's

fireram, hey i didn't know you had an 06. in that case you will need spacer for 305's to without rubbing in the front. on the newer models, i believe, it rubs on the coil/ shock when you do sharp turns. The 03 has a different front set up so that's not an issue. maybe that's what the tire guy is thinking.

read some other posts on larger tires and you can find the right spacing for the 305's on an 06.

one other thing...my BFG 305/55/20 say there are 33.4"dia. when i measured them , to add them to the superchip, they measured 32.75".
what gives

yah ....BFG's will make you poor

you can PM Freeze he's the 4x4 man here. i know he can sure help you out.

Good luck
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Old 01-19-2008, 07:58 PM   #6
 
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Larger AT's on stock 20's

I've decided if I stay with the stock 20 I am going to run 285/60's, but I really would like to see them first. You never know how different tires sizes will look. Still thinking about dropping to a 17 or 18. Can't decide if a 17 would look to small, but I can put a 34 or 34.5 inch tire on it for a lot less. 17 or 18 would work on a 2006 sport 4x4 wouldn't it?
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Old 01-19-2008, 10:18 PM   #7
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Larger AT's on stock 20's

Not a bad idea to drop to 17's...like you said you can get them in 35's for a lot cheaper.

the 17 / 18 may have the same issues in the 305 size. i'm not really sure on that one. maybe some else will know.

Take care
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Old 01-20-2008, 07:45 AM   #8
 
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Larger AT's on stock 20's

The backspace on the stock 20's are bigger than what I would get in another rim. The stock 20's hug the inside of the truck more, which would cause the rub on a wider tire. If I switch rims and go with a deeper offset, which gives me a smaller backspace I should be fine. I think I said that right. That is what I understood when I was getting the explaination at the shop.
Is there anyone out there that could post some pics for me? Maybe in the larger 17 and 18 inch tires. Thinking about 305 and 315/70/17 and 325/60(65)/18 with a 2" Level. I am really having trouble deciding and could use some help bigime. Thanks
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Old 01-21-2008, 12:08 AM   #9
 
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Larger AT's on stock 20's

TUG, The reason for the difference in tire diameter is due to the the weight of the truck on the tires and causing a flat spot at the pavement. When you measure from the asphalt to the top of the tire, that measurement is used for the cals for the tire dia. for superchip. Help me out guys, this is correct right!
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Old 01-21-2008, 12:41 AM   #10
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Larger AT's on stock 20's

Quote:
quote:Originally posted by Big Dog:
TUG, The reason for the difference in tire diameter is due to the the weight of the truck on the tires and causing a flat spot at the pavement. When you measure from the asphalt to the top of the tire, that measurement is used for the cals for the tire dia. for superchip. Help me out guys, this is correct right!
Yep. Ron @ Superchips verifies that fact quite often over on the Flashpaq Forum. Measure with the tire on the truck to the closest 1/4 inch. I use a short spirit level on top of the tire to measure to.
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