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Stock Silverado ZR2 with 35" tires?
- Thread starter supersix
- Start date
I agree. I wasn’t impressed with the wheels either. I wonder if there will be other options. Definitely rims and tires would be first to go. If they’ll fit.
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OP
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Nitto just announced a new All Terrain called the Recon Grappler. It just released specs for 18" wheels:
www.nittotire.com
Recon Grappler A/T | All Terrain Light Truck Tire | Nitto Tire
The Recon Grappler A/T combines versatility and distinctive design into an all-terrain light truck tire that stands out with capable off-road performance.
I wanted to reopen this question as this is something I would like to do as well. As time has past has anyone seen anything to indicate if this would be possible? Throwing 35s on a zr2 without any additional modification?
I am pretty sure they are 8.5 inches wide for the factory wheels so it should be fine.
I second this, my build sheet has 8.5" wide wheels spec'd.
So I've been hesitant to go too big on my current rig ('07 Frontier) because I want to make sure my gears on the old girl don't get too messed up. From my online research (I'm definitely not an expert), running 35s should push you to change the gear ratio from 3.73 to 4.56. Would improve gas mileage, but also help keep that awesome 6.2L L87 engine with a 10-speed tranny running the way she's meant to.
I'd love to throw some 35s on there, but how many people are matching the gear ratios to those new tires? Especially after dropping $70K+ on a new truck and then adding another $1500-$2K for tires...
I'd love to throw some 35s on there, but how many people are matching the gear ratios to those new tires? Especially after dropping $70K+ on a new truck and then adding another $1500-$2K for tires...
Stock gears are 3.23.
My bad. I keep seeing 3.73 on google searches, but now that I dig deeper I'm seeing the 3.23 ratio. Makes me question the impact of 35s even more...
So this YouTuber put a 2” lift on his trailboss. However, he only installed it on the front. This replaced his upper control arm as well as adding a spacer. The end result was that his truck was leveled and had room for 35s with some minor cutting. His wheels don’t look like they are any more offset than factor so adding some offset could make cutting unnecessary.
As for regearing. I’ve got a 2021 Jeep with 37s. Even though it came with 4.10 axles, it still needs re-gearing. This Youtube video has been the guide I’ve found for determining the best gear ratio.
From this video, you take the new tire size and multiply it by the current gear ratio. Then you divide it by the old tire size. That will give you a ratio. From there you pick the closest available gear ratio.
So, 35” x 3.23 / 33 = 3.425. Just a quick search and I see that 3.42 gears exist. You can go higher if you want, but 3.42 is where you should start if you’re re-gearing.
As for regearing. I’ve got a 2021 Jeep with 37s. Even though it came with 4.10 axles, it still needs re-gearing. This Youtube video has been the guide I’ve found for determining the best gear ratio.
From this video, you take the new tire size and multiply it by the current gear ratio. Then you divide it by the old tire size. That will give you a ratio. From there you pick the closest available gear ratio.
So, 35” x 3.23 / 33 = 3.425. Just a quick search and I see that 3.42 gears exist. You can go higher if you want, but 3.42 is where you should start if you’re re-gearing.
So if our ZR2s are 1/2” higher from factory we might be able to stuff 35s, without trimming, after a level. Depending on width I guess.
M0J0
Member
Because they are illegal. There are dangers to them for street use. They are more prone to blowouts. There are balance issues.
It isn’t illegal to make them beadlock capable though.
M0J0
Member
Correct, it is an end around the law. They are DOT approved if they are beadlock capable. It does not change the fact that beadlocks are not the best for daily.
I believe that 1/2 inch comes from the 33's
They are not any more prone to blowout than a regular wheel unless you're running a made in the garage special and did a crappy job.
Z’s are only a half inch higher due to the larger tire. The ride height is identical to 20” rim equipped trail bosses as both run 33’s.
I would expect a slight bump in width such as a 85 or more then likely a 95 will fit without much issues beside extreme suspension articulation.
35’s will not fit on a stock truck.
A 95 same aspect will net a 34.3 which is where my money will be is the limit of stock offset rims without spacers.
Up sizing the tires I feel will quickly under gear the truck as it’s absolutely inexcusable that GM went with 3.23’s given 3.42’s and even 3.73’s to some extent (not sure if the duramax also uses the 9.76 ring gear) are off the shelf items just like the rest of the truck for the most part.
It would turn doggy quickly like my 5.3 with 33’s
I would expect a slight bump in width such as a 85 or more then likely a 95 will fit without much issues beside extreme suspension articulation.
35’s will not fit on a stock truck.
A 95 same aspect will net a 34.3 which is where my money will be is the limit of stock offset rims without spacers.
Up sizing the tires I feel will quickly under gear the truck as it’s absolutely inexcusable that GM went with 3.23’s given 3.42’s and even 3.73’s to some extent (not sure if the duramax also uses the 9.76 ring gear) are off the shelf items just like the rest of the truck for the most part.
It would turn doggy quickly like my 5.3 with 33’s
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