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newbie wheel help! advice needed!


mdb
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so here is the deal.. i have a stock 98 chilkoot with 265/70/15 grand trek tires.. horrible.. i came back from mexico to a foot of snow on the ground, and i could not believe that i barely made it back home with the truck, so its time for new tires and rims! im want to get some pro comp rock crawlers 16x7 with some bridgestone revo's... what confuses me is how to figure out all the dimensions of the tire size etc.

 

is the stock back spacing on this vehicle 4.6-4.7in? i would like to determine this without taking a wheel off.. theres lotsa snow outside.

so the pro comps have a backspacing of 4in.. that means i can fit slightly larger tires right? originally, i was gonna go with 255/70/16 as i found out that they work pretty good without having to do any cutting, but thats on stock wheels.. so could i fit 265/70/16 revo's or should i stick with the 255???

 

the vehicle has stock suspension that may be getting upgraded in the near future with a tiny .5-1in lift. the vehicle is used as a daily driver in dry/wet/snow and often going up mountain passes etc. i would also like to get into a *little* off roading in the summer, so any advice on this setup is greatly appreciated.. let me know if my math is correct! and please.. what is the stock offset!! i cant seem to find a reliable source!

 

happy new year to all!

 

thanks

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I'm not really sure what the stock offset is, though I do know that the rim sizes varied slightly depending on the badging (my LE has different rims from your chilkoot).

 

However most people around here say that if you're going to increase the tire size you should go to a 3.75" - 4" backspaced rim to avoid rubbing on the struts. Any less backspacing and I think they become a problem rubbing against the fenders on the outside.

 

Sorry I couldn't be more help, still running stock rims myself.

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I'm not really sure what the stock offset is, though I do know that the rim sizes varied slightly depending on the badging (my LE has different rims from your chilkoot).

 

However most people around here say that if you're going to increase the tire size you should go to a 3.75" - 4" backspaced rim to avoid rubbing on the struts. Any less backspacing and I think they become a problem rubbing against the fenders on the outside.

 

Sorry I couldn't be more help, still running stock rims myself.

 

cheers mate. im looking at buying a newer r50 at some point, so im trying to balance this purchase as best i can for the larger calipers in the future. so far, im getting 16x7 with 4" backspacing. now im tyring to figure out the largest tire size possible with no rubbing, which i think is gonna be a 265/70-16. im in the same boat as you.. just getting into this whole 4x4 thing.. but i guess it runs in the blood.. the other car is a 1989 vw golf 2.0turbo awd with 400hp! not taking that in the bush though...

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I'm not sure you'll get a very wide tire onto a 16x7 rim if thats your intention at all. 8" wide rim seems to be the most common for people running larger than stock tires. I highly doubt you'd want a wider rim than that though unless you want to run really fat tires (11.5+). But again, I'm speaking from minimal experience.

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Why not just go with a 16x8 after market rim with 4" BS

 

found a cool little app if anyone is interested. http://www.bigcustomwheels.com/rt_specs.jsp

 

after looking at that, i think i will go with the 16x8 with 265/70-16's. looks like it will fit just right and give me slightly larger diameter, and the wheel will stick out an additional 1.2" over stock (based on a 4.7" stock backspacing... but im still not sure what the stock backspacing is on my truck. this is all i managed to find on the net). should fill out the chilkoot's skirts nicely... maybe a tiny rub.. got any pointers on that setup?

 

oh yeah.. forgot to mention, the back spacing on the 16x8 is 4.25" and not 4" unlike the 7"

Edited by mdb
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Well, he said that he may buy a newer one in the future, and 15s don't really work on the newer ones, unless the brake pads are half worn. 16s would make his life easier if he were to switch the wheels over to a newer R50.

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Well, he said that he may buy a newer one in the future, and 15s don't really work on the newer ones, unless the brake pads are half worn. 16s would make his life easier if he were to switch the wheels over to a newer R50.

 

exactly. the plan is to swap em over to the newer truck and i want to be sure i clear the calipers. at the moment i have steel rims on with chrome hub caps, so no.. they dont exactly look like those wheels, but could just be different hubcaps... but i know i have the 6.5" wheels, so if thats the stock backspacing, i should be good.

 

i dont really plan on doing any rock crawling. my main goal is to be able to drive from vancouver to kelowna during winter.. if any of you know of that pass, you understand the reason behind getting rid of the dunlop grand treks and going for the nokian vatiiva a/t. truck is used for going snowboarding, and they wont let you up the mountains or on highways without rated tires. anywho.. anybody here from vancouver with some fun beginner easy trails i could try??

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exactly. the plan is to swap em over to the newer truck and i want to be sure i clear the calipers. at the moment i have steel rims on with chrome hub caps, so no.. they dont exactly look like those wheels, but could just be different hubcaps... but i know i have the 6.5" wheels, so if thats the stock backspacing, i should be good.

 

i dont really plan on doing any rock crawling. my main goal is to be able to drive from vancouver to kelowna during winter.. if any of you know of that pass, you understand the reason behind getting rid of the dunlop grand treks and going for the nokian vatiiva a/t. truck is used for going snowboarding, and they wont let you up the mountains or on highways without rated tires. anywho.. anybody here from vancouver with some fun beginner easy trails i could try??

 

If all you want to do is highway driving in the snow you don't need bigger tires. I bought some good snow tires before last winter, drove up to the kootenays, spent the winter up there in the snow. Only once got it stuck and that was on a terrasen pipeline with snow over the bumper. Anyway all that really matters is the quality of the tire, not the size since it's highly unlikely you'll find a road in southern BC wih too much snow for your stock ride height.

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