ZR2 Oversize Tires Thread

[wutang61]

Figure it’s time to a make a dedicated thread for those who have increased tire size or changed wheel tire combinations.

Format it so Google can find it so we can increase traffic to the site and maximize information available to everyone.

Tire size (xxx/xxRxx or floatation size.)
Wheel (stock or A/M with width and offset specifications or spacers if applicable)
Suspension modifications
Any trimming performed (if so list what was modified)
Please note any Tire-Body contact observations.

Decent photos of the setup for others to navigate choices themselves for their own trucks. Try to keep back and forth regarding users combinations to PM’s to keep the thread clean.

Seems like a good idea to me. Have at it.

 

[ZR2EDDYB]

315/70/R17 BF Goodrich K02
17x8.5 -12 Offset Relations Race Wheels RS2-H Monoforged wheels

Front suspension is a mix of Peak top spacer and Rough Country preload spacer and bottom strut spacer.

Extensive trimming performed. Front bumper notched at the front wheel well, fender liner trimmed front and back, cab mount chop.

 

[AXE]

295/70 R18 Toyo Trail RT Tires (Load Range) E (34.5 inches tall installed)

Method NV 305 Wheels (18x9, -12 offset)

Stock Suspension

Bumper trim, rear wheel well plastic and liner trimmed

No rubbing under normal use, but tires are still 1/4 " from bumper and rear wheel well. Extreme off road use may rub some with wheel cranked.

 

[amateurhour]

22 1500 ZR2

-295/70r18 Falken Wildpeak AT4W (34.3”x12.2”)
-18x9 Method 305 -12 offset
-Peak leveling kit
-A bunch of trimming performed including 1/2” from the bumper, part of the fender flares and the bracket (see this thread for more pictures) and they still rub the crash bars at full turn.
*I also have Cognito upper control arms installed

 

[Busa Dave]

22 1500 ZR2

-295/70r18 Falken Wildpeak AT4W (34.3”x12.2”)
-18x9 Method 305 -12 offset
-Peak leveling kit
-A bunch of trimming performed including 1/2” from the bumper, part of the fender flares and the bracket (see this thread for more pictures) and they still rub the crash bars at full turn.
*I also have Cognito upper control arms installed

View attachment 16146
View attachment 16148View attachment 16149

If you spend any time off road you will get some pretty good fouling when you are going down a hill with the wheel tuned and the suspension goes into travel. Eventually you will have to do some cutting.

 

[AXE]

22 1500 ZR2

-295/70r18 Falken Wildpeak AT4W (34.3”x12.2”)
-18x9 Method 305 -12 offset
-Peak leveling kit
-A bunch of trimming performed including 1/2” from the bumper, part of the fender flares and the bracket (see this thread for more pictures) and they still rub the crash bars at full turn.
*I also have Cognito upper control arms installed

View attachment 16146
View attachment 16148View attachment 16149

Did you measure the installed height of those Falkens at the 34.3"? They seem like they are closer to 35 inches. It's interesting that we have the tire size and wheel, but your closer to the bumper and wheel well. Maybe it's the suspension bits making the difference.

 

[badbarts52]

- 285/75R17 E Falken Wildpeak AT4W (34.1x11.6” according to Falken website)
- 17x9” -12mm Fuel Shok rims
-stock suspension

- slight trimming of the front bumper and removal of plastic trim behind front tire.
- no rubbing anywhere. Very mild poke.

 

[ZR2EDDYB]

- 285/75R17 E Falken Wildpeak AT4W (34.1x11.6” according to Falken website)
- 17x9” -12mm Fuel Shok rims
-stock suspension

- slight trimming of the front bumper and removal of plastic trim behind front tire.
- no rubbing anywhere. Very mild poke.

Is that a power outlet coming out of the plastic piece?

 

[badbarts52]

Is that a power outlet coming out of the plastic piece?

It’s the plug for the engine block heater! (Mine is a Duramax). Haven’t used it yet but I’m sure it will be nice this winter.

 

[badbarts52]

315/70/R17 BF Goodrich K02
17x8.5 -12 Offset Relations Race Wheels RS2-H Monoforged wheels

Front suspension is a mix of Peak top spacer and Rough Country preload spacer and bottom strut spacer.

Extensive trimming performed. Front bumper notched at the front wheel well, fender liner trimmed front and back, cab mount chop.

This thing looks sick btw. Love the tan.

I creeped some of your other photos too. I’m thinking about getting the yellow fog light covers and removing all of the chrome accents. Did you plasti-dip the front Chevy emblem?

 

[ZR2EDDYB]

This thing looks sick btw. Love the tan.

I creeped some of your other photos too. I’m thinking about getting the yellow fog light covers and removing all of the chrome accents. Did you plasti-dip the front Chevy emblem?

Yes sir. I used Hyperdip.

Did a lot of prep work on it but it worked. No touch up required 6 months later.

 

[OldNH]

Figure it’s time to a make a dedicated thread for those who have increased tire size or changed wheel tire combinations.

Format it so Google can find it so we can increase traffic to the site and maximize information available to everyone.

Tire size (xxx/xxRxx or floatation size.)
Wheel (stock or A/M with width and offset specifications or spacers if applicable)
Suspension modifications
Any trimming performed (if so list what was modified)
Please note any Tire-Body contact observations.

Decent photos of the setup for others to navigate choices themselves for their own trucks. Try to keep back and forth regarding users combinations to PM’s to keep the thread clean.

Seems like a good idea to me. Have at it.

285/70R18 Falken Wildpeak A/T4W (34.0 x 11.5 and 9.6" tread width)
Rovos 18 x 9 -9 with 3/8" (9.5mm) spacer total offset -18
Stock Suspension
Rear Wheel Well - trimmed plastic and cut top off metal support bracket
Front Bumper - trimmed about 3/4" off
No rubbing anywhere. Have 1/2"-3/4" clearance.

 

[ZR2BIZON]

ZR2 BIZON EDITION
Tire size (305/70/18)
Wheel (stock wheels with 2" spacers)
Stock Suspension
Any trimming performed (performed the crash bar mod front part non-modified)
Please note any Tire-Body contact observations. (Went off-roading today and I was fully articulated, zero contact from tire)

 

[ZR2EDDYB]

ZR2 BIZON EDITION
Tire size (305/70/18)
Wheel (stock wheels with 2" spacers)
Stock Suspension
Any trimming performed (performed the crash bar mod front part non-modified)
Please note any Tire-Body contact observations. (Went off-roading today and I was fully articulated, zero contact from tire)
View attachment 16374
View attachment 16375View attachment 16376View attachment 16377View attachment 16378

Damn, you really trimmed that thing!

 

[ZR2BIZON]

Damn, you really trimmed that thing!

Lol

 

[AXE]

Damn, you really trimmed that thing!

Measure twice cut once!

 

[Top shelf]

ZR2 BIZON EDITION
Tire size (305/70/18)
Wheel (stock wheels with 2" spacers)
Stock Suspension
Any trimming performed (performed the crash bar mod front part non-modified)
Please note any Tire-Body contact observations. (Went off-roading today and I was fully articulated, zero contact from tire)
View attachment 16374
View attachment 16375View attachment 16376View attachment 16377View attachment 16378

Did you get the plate from pinnicale?

 

[ZR2BIZON]

Did you get the plate from pinnicale?

No I fabbed it my self

 

[PBSlinger]

For informational purposes...

I've been running the Cooper Strongholds in 295/70r17 for the past couple of weeks and even when I swapped them out I felt like they were slightly undersized in overall diameter compared to my stock tires. It sucks that there is no consistency when it comes to size vs different brand of tires but seems like the coopers run a little on the small size for this given size at least. Maybe the stock 275/70r18s are on the large side of the spectrum too, who knows.

So I used their "45-Day Satisfaction Guarantee" and will be switching over to the same tire in 285/75r17. I'll get some more data as soon as the new size is installed to give you guys some specs on the 295/70r17 vs 285/75r17 vs stock.

The new tires are on Method 703s in 17x8.5, same width as the stocks are.

 

[badbarts52]

For informational purposes...

I've been running the Cooper Strongholds in 295/70r17 for the past couple of weeks and even when I swapped them out I felt like they were slightly undersized in overall diameter compared to my stock tires. It sucks that there is no consistency when it comes to size vs different brand of tires but seems like the coopers run a little on the small size for this given size at least. Maybe the stock 275/70r18s are on the large side of the spectrum too, who knows.

So I used their "45-Day Satisfaction Guarantee" and will be switching over to the same tire in 285/75r17. I'll get some more data as soon as the new size is installed to give you guys some specs on the 295/70r17 vs 285/75r17 vs stock.

View attachment 17233

It’s very unfortunate how inconsistent tire sizing is. I have the Falken Wildpeak AT4Ws in a 285/75R17 and they show their overall height to be 34.1” compared to the Coopers which are 33.86” in the same size tire. Also seems like even their overall diameters are inconsistent with how they actually measure up in the field.

I attached some screenshots of the stock Goodyears vs Coopers vs Falkens.