Stock wheels have a 33mm offset which is about 1.3 inches. Most people are going with a 0 offset for flush with the fenders so 1.25 inch spacer should get you close. I have 0 offset wheels that look close to flush but the side wall pokes out a bit with a 9 wide wheel and 10.5 wide tire. I have a WT but I think all the 15+ wheel offsets are the same. Someone correct me if I'm wrong.

Edit: also keep in mind the stock lugs are 1.5 inches long so if you go with anything less then 1.5 inch spacer you will probably have to trim your lugs. If it were me I would go with 1.5 spacers to avoid trimming the stock lugs.

 

For flush on all 4 corners with stock 265s, you'll want 1.25s on both fronts and driver rear and a .75 on the passenger rear because the bed is offset 1/2". (If you're interested in the offset spacers, I have a .75 and 1.25 in a box). I'm running 285s and have about 1/2" of "poke".

Contrary to the previous response, you don't need to cut the studs for the 1.25s since the ZR2 wheels have a cut out behind them. You definitely need to cut for the .75 though.

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For flush on all 4 corners with stock 265s, you'll want 1.25s on both fronts and driver rear and a .75 on the passenger rear because the bed is offset 1/2".

This is news to me. I want aftermarket wheels, but would like to stay inside the fender wells.

 

What's the max spacer you can run without any additional modification and 285s?

edit: and what about 265's as well please

 

What's the max spacer you can run without any additional modification and 285s?

edit: and what about 265's as well please

so, the popular consensus on the ZR2s seem to be 1.5" ON OEM WHEELS and TIRES. No shaving lugs, etc.


Shawn, you are throwing too big a variable in there.
And I'm not going to answer this one.
but c'mon dude, :clueless
Are you in a ZR2 or a regular Colorado? At least put your truck info in your sig!
285 what? there's SO many variables there...

 

Or you could loosen the bolts and adjust the bed to be even... just saying.

 

I ran 1.25" on stock wheels. Don't remember rubbing on stock 265/65/17, but I jumped to 265/70/17 almost right away and did get a little rub when turning and with any type of compression on the suspension.

I have since gone to an aftermarket 17x8.5 wheel et 0, so I'd be willing to sell the 1.25" spacers at a good price. PM me if you're interested.

 

I ran 1.25" on stock wheels. Don't remember rubbing on stock 265/65/17, but I jumped to 265/70/17 almost right away and did get a little rub when turning and with any type of compression on the suspension.

I have since gone to an aftermarket 17x8.5 wheel et 0, so I'd be willing to sell the 1.25" spacers at a good price. PM me if you're interested.

At any point, did you have stock wheels, with spacers, the 589 level kit, and 265/70r17 tires?

If so, did you rub with that setup?

 

Does anyone know where to buy 1.25 inch spacers at? I saw a previous thread with a link to Amazon but were for 1.50 inch.

 

I ended up buying the bora 1.25 from Wheel Adapters, Wheel Spacers, Hub Rings for your car! | Motorsport Tech I was quoted they would be finished on 5/9 and shipped shortly after and I actually had them at my door on 5/8.

 

Wow.
That stinks. I was considering.
1. 265/70/17s stock.
2. 265/70/17s with the eibach spring leveling kit plus spacers.
3. 275/70/17s plus the eibach springs but no spacers.

I really wasn't wanting to have to trim, but it seems all but inevitable with the possible exception of option 2.

 

Has anyone used 1.5 spacers with zero offset wheels? I have a line on some Method wheels but they are 6x135 bolt pattern so I'll need to run adapters.

 

Those wheels will stick out 3-4” farther than stock. Depends what style you are going for but that’s too far in my opinion.


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