17" vs 16" rims

Jimmer

Newbie
Original poster
Feb 25, 2018
9
Toronto, Ontario Canada
I have a 2007 trailblazer inline 6 cyl. currently have 17" would like to know if stock 16" rims will bolt on?
From what i have read it seems it would but looking for clarification
Thanx
Jim
 

HARDTRAILZ

Moderator
Nov 18, 2011
49,658
16s dont work if you have LWB or V8 engine.
 

paul2005tb

Active Member
Nov 26, 2014
260
Massachusetts
I have the Trailblazer (not LWB, not extended) LS with the 4.2 I6 . I have measured the brake calibers and I feel very confident that a 16in rim will fit.
 

coolasice

Hobbyist
Oct 27, 2013
979
Northern Maine
As long as you haven't done the brake rotor upgrade they should fit just fine. I use 16s for the winter with factory rims from an 05.

Check your spare it's probably on a 16
 
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paul2005tb

Active Member
Nov 26, 2014
260
Massachusetts
Check your spare it's probably on a 16

My spare is also a 17 but it is a steel rim 17. I think the offset on the spare is a less than the 4 alloy rims.
 

HARDTRAILZ

Moderator
Nov 18, 2011
49,658
I have the Trailblazer (not LWB, not extended) LS with the 4.2 I6 . I have measured the brake calibers and I feel very confident that a 16in rim will fit.
So what I had stated...a couple months ago. But without my actual experience of running a 16 on SWB with the 4.2.

There were a few spares used over the life of the platform. I do not think any were actually aluminum from the factory and they only came in 16 or 17.
 

Mektek

Hobbyist
May 2, 2017
579
FL
My 02 has the original lightweight aluminum spare - came that way when new. I drove around for a few weeks with two of those spares on the rear wheels and it was OK. I don't know why they went to the trouble and expense of using a special rim that weighs just a few pounds less.
 
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HARDTRAILZ

Moderator
Nov 18, 2011
49,658
My 02 has the original lightweight aluminum spare - came that way when new.
I remember someone using these spares for an offroad build...are these aluminum?
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HARDTRAILZ

Moderator
Nov 18, 2011
49,658
Awesome. Good data to have.
 

gdavid

Newbie
Nov 20, 2020
2
Owings, MD
16s dont work if you have LWB or V8 engine.

You saved me a lot of frustration, something I completely failed to consider.

I drove my EXT on the beach this fall on a family trip and have been planning changes to improve performance in the future (I feel I was lucky to not get stuck). I was considering smaller wheel & taller and more pliable sidewall as well as offsetting to run a bigger diameter but wasn't thinking about the caliper clearance at all. This would have been very frustrating.
 

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