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Discussion Starter #1
If someone, somewhere, somehow could come up with a sticky chart breaking down 'possible tire fit' by "Wheel Size", "Body Lift Needed?", "Suspension Lift Needed?", "Spacers Needed?" and "Custom Mods Needed?" those of us who aspire to go for lifts/tires may be able to quit asking about our specific setup (ahem...I have 16's, planning the BDS suspension lift, open to spacers, and am totally confused :crazy::duh:)...

As a bonus, does anybody have a good explanation of how height and width affect the need for spacers and lifts? too wide needs a spacer to clear the ball joint and a lift to keep from rubbing the wheel well on compression, and too tall needs a lift to keep from rubbing the wheel well on compression and spacers to keep from rubbing wheel well on turns? It looks like /75 is the beginning of spacer requirements, 275/16 and 275/17 starts to need a suspension lift, and 285+ needs both lifts? Am I on to anything here? :worried: I'll update as I can to keep bad info off the top of the thread...


Here's the information I could gather, assuming stock wheels :)hail:Thanks to Clayton and The Roadie!):

16"

265/75/16 - needs spacers

285/75/16 (33") - needs spacers, new wheels, suspension and body lifts, cutting/hammering to fit

17"

255/65/17 - OK w/ no lift, spacers, or mods

255/70/17 - needs upper ball joint mod, possible hammering to fit

255/75/17 - needs spacers, upper ball joint mod, possible hammering to fit

265/70/17 - needs spacers, upper ball joint mod, definite cutting/hammering to fit

285/70/17 (33") - needs spacers, new wheels, suspension and body lifts, cutting/hammering to fit

305/70/17 (34") takes all of the above, plus total dedication to being *the* tallest TB of us all. (JamesDub)

:thx:thx
 

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if it is all ultimate then we need to see some specs on 18's and 20's....like the 285/65/18 or the 285/55/20.... I would imagine some are considering those as well...
 

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I would be shocked and call BS if anybody claims they seriously offroad with 18"+ wheels on trailvoys. Lifted for bling, maybe. But that would be better left for the Appearance forum, not this one.
 

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Discussion Starter #6
if it is all ultimate then we need to see some specs on 18's and 20's....like the 285/65/18 or the 285/55/20.... I would imagine some are considering those as well...
The blingery is down the hall...Only muddy ones with lotsa rubber here...:yes:

I guess 'ultimate' was a stretch, born out of frustration with the dozens of 'what about this tire?' threads in the offroad forum. Not so ultimate--just how tires fit on stockers with and without lifts/spacers/cutting/hammering.

Any idea why I can't go back and edit the starter post?
 

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FYI: I have 265/70/17 General grabbers and they fit with no rubbing. All I have is wheel spacers, and BDS suspension lift. I never had to do a upper ball joint mod and I didn't cut or hammer anything.
 

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FYI: I have 265/70/17 General grabbers and they fit with no rubbing. All I have is wheel spacers, and BDS suspension lift. I never had to do a upper ball joint mod and I didn't cut or hammer anything.
Second that...no grinding, spacers give you the clearance there. I tried without spacers and I would have to grind down everything there was on the upper ball joint to get enough clearance.
 

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just a thought.... i have a friend with a jeep with 33's and 20s and he is always in the mud but most of the guys here are on 18 with 35's or 20's with 38's
 

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In mud you don't air down, as I understand it, so it's all in the tread block design. Since trailvoys aren't good mudders, my advice if you're going to air down for sand or rocks is to have the maximum sidewall possible. Here's a pic of a Jeep with 39s on 15"



All depends on your mission.
 

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17"
285/70/17 (33") - needs spacers, new wheels, suspension and body lifts, cutting/hammering to fit
I run 285/70/17- I wouldn't have needed Spacers with 23mm offset wheels..
I just put them on to give a little extra room. And I only have a suspension lift (BDS)
 

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I agree Envoys have a differently shaped front bumper, and it's closer to the tire. (No longer a problem for me, you know. :D )I was giving advice for a year to members going to 265s, and the Envoy owners said I was right, and the TBs said I was scaring them with stories of cutting they found unnecessary.

I believe the rear edge is the same, and the BFH is still necessary on both kinds.

Forgot you had a weiner dog XL. I think there are three of you now wheeling long wheelbases. (I don't count the mall cruisers who post in those other forums. :weird: )

 

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Here's the information I could gather, assuming stock wheels :)hail:Thanks to Clayton and The Roadie!):

16"

265/75/16 - needs spacers

285/75/16 (33") - needs spacers, new wheels, suspension and body lifts, cutting/hammering to fit


17"

255/65/17 - OK w/ no lift, spacers, or mods

255/70/17 - needs upper ball joint mod, possible hammering to fit

255/75/17 - needs spacers, upper ball joint mod, possible hammering to fit

265/70/17 - needs spacers, upper ball joint mod, definite cutting/hammering to fit


:thx:thx
Is there really that much defference in the 16" early models and the 17" later models? Or, have you guys just done more work with 17" wheels than the 16"? Not pointing fingers, just curious. I don't have a lift or spacers and I'll be getting a set of 255/75/16's at tax time, can't remember the name of them right now:suicide:, but I like the A/T tread that they had. If no one has done this, I'll let you guys know how they fit.
 

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Is there really that much defference in the 16" early models and the 17" later models? Or, have you guys just done more work with 17" wheels than the 16"?
Except for the wheels, there are no other suspension differences among the years. Older trucks are more likely to be modded aggressively for offroad because very few folks want to put new ones at risk of being damaged, but that means more 17" owners are upgrading their tires for looks and there's more of them out there.

Teebes, AlekG and I all went to 6X5.5" style wheels, and we could have almost any kind of wheel out there in that bolt pattern, 16", 17", or 18" diameter, and we coincidentally ALL chose 16" because you get the most sidewall ratio when the wheel is smaller, and we ALL go aggressively offroad where airing down to 15-18 PSI is very useful (or even essential) so the 16" choice was functional.
 

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and we coincidentally ALL chose 16" because you get the most sidewall ratio when the wheel is smaller, and we ALL go aggressively offroad where airing down to 15-18 PSI is very useful (or even essential) so the 16" choice was functional.
I don't think I'll ever be in a situation where I'll need to air them down, but aggressive offroading IS in the future.

Don't slap me with the "Mall Rated" sticker just yet, the TB is still the family vehicle for now. So I won't have any aggressive offroading pics just yet, but offroading it will go!
:woot:
 

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:hissy::hissy: They can't order the ones I want in 255/75, so I guess I'll have to settle for the 255/70/R16's....:hissy::hissy:

I know I could get something like them somewhere else, but they are the best looking ones that Wal-Mart has. My wife works there, so we'll be using the discount on them!:woot:
 

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Ok guys shopping for new tires right now 02 envoy xl does see some moderate off-road use and has surprised me with were it will go being so low and long. I am wondering if the 255/65/17's will fit on with no major mod's, hammering the brackets and a bit of grinding on the ball joint is fine by me but no fender trimming untill I get a new bumper cover then the old one is going to be modified for running off-road it's already cracked so it will take some of the pain out of trail damage :D. I do plan on the bds suspension lift but not for a while yet in the summer time mayby but well it need's new tires now and the factory ones just look so small on the large truck. I know there are a few differences in the swb to the lwb trucks that's why I am asking thanks :)
 
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