So I heard you guys like 40s on 17s..

5.29 rumors but we all know how long it takes once you hear a rumor. - Never like the e-locker that never happened. haha

 

Updates..

After 24 hours of driving it and testing it out a bit on a local trail in the middle of the night, there's no rub at full lock on flat ground. There's about a centimeter's worth of rub on the tires knobs at tuck and lock, which means I'm going to have to make at least a half-inch's worth of clearance by cutting more and smashing the pinch welds. The pinch welds are where most of the rub is. While my BMC I did years ago could be more aggressive, there's maybe only a millimeter's worth of rub when tucked. I'll cut more off the body mounts, too, while I'm at it again.

The truck's track width increased by about 2" due to the tires being wider (the 37s were 12.5" and these 40s are 13.5") and the offset of the 17" wheels being 0mm (the 18s were +12mm). The truck's height increased by almost 2" because the tires are pretty much true 40s and when comparing before the 37s were worn down to basically 36s. I also cranked up the front coilovers a bit to add an extra inch of front ride height. The 7" BDS lift kit is still only cranked to about 6" so I could max out that more but I don't want to lose down-travel when offroading.

Clearance plans after cutting/hammering

Since most of the rubbing is on the wheel well sheet metal, I'm also going to fab up a custom 3/4" body lift to help clear a bit.

I'm currently running 1.25" Spidertrax wheel spacers and am considering going down to a 1" BORA wheel spacer to minimize arc radius. If I recall correctly, you can't safely do a wheel spacer due to bolt/nut clearance from the bearings.

Performance plans after clearance is solved

Obvious: Regear to 4.88s (and throw lockers front and rear while at it)

Note: I have a supercharger already.

However

Keep in mind that this is my daily but I also rarely drive my truck to work (I've been using my girlfriend's car) and even if I do start driving to work again my office is just 1.5 miles away from my house; so I'm hardly stressing the drivetrain often. It really only takes abuse during overland or offroad trips, which is somewhat equivalent to a "normal" tundra towing heavy loads around as far as overall stress during the lifespan of the rig -- at least that's how I'm looking at it.

If it turns out the performance isn't that bad and tolerable for a while longer, I may delay the gears a few months to get a custom rear bumper made with a tire carrier for the full-size spare. That's pretty important for my offroading adventures since I do a lot of overlanding and bed space is precious.

Considerations

Upgrading the steering system.

Upgrading the bracket lift's spindles (will have to be custom for sure).

Repairs and spares

Naturally, with a tire size this big and how much I abuse my truck offroad (this ain't your typical "SEMA Bro" truck on a 12" lift rocking 40s on 24" wheels) I'm going to need spares. I currently have 3 spare OEM CV axles, 2 spare OEM wheel bearings, and a set of spare bracket lift spindles.

Dreams

After the gears, lockers, rear bumper, and some other smaller overlanding mods, I plan on "frankensteining" my build by combining a long-travel kit (most likely Camburg) with my bracket lift up front. Everything should bolt right up. The only thing is -- in order to maximize the travel capability of the LT kit -- I'll need custom coilovers up front. There are several reasons to do this..

1) Increased articulaton/travel.
2) Upgraded joints and arms as far as strength and durability.
3) Wheel hub moved forward an inch.

One potential downside is that my track width will be ~4" wider and the truck is already wide. Removing the wheel spacers wouldn't be an option but going to 1" would. The wheel spacers are needed to clear the bracket lift's spindle when on 17s. However, a potential upside to the increased track width up front, and maintaining the current track width in the rear (so that's a ~4" difference between both) is that cornering will be better and the front CoG goes down a bit.

 

I've been hearing those rumors, too. Yea, I've been hearing them for years but lately I've been hearing them a lot more and some from reputable people. Time will tell. If they do come out then I'm on them like white on rice and ready to be an early adopter. I'm surprised there hasn't been one yet how many pre-runner Tundras are being built now.

 

What is your width now? I am 89 inches wide from outside lug to lug

 

If the rumors ever come true, yes.

 

Not sure yet. I'll have to measure soon. Parts compared to stock are: 1.25" wheel spacers, 8.5" wheels with 0mm offset, and 13.5" tires.

 

You have a full size spare?? Actually you should have 2 of them lol

 

Not enough room to carry 2

 

He's got a roof rack

 

I mean.. I work out and can lift the tire pretty easily but no way am I going to fuck around with trying to get one on the roof, haha.

 

Stock Tundra is 79.9 width

 

Submarino to this craziness. Very interesting!
Did you have any particular goals in going 40, or more an exercise to see if it could be done?

 

@KevinK cause 37's are too small. 35>37 First grade math

 

Haha! Craig can't do 1st grade math

 

Yupp on the trail if your the only one with 37's and no extra spare that is where 35's > 37's We have had this discussion. Told you 1st grade Math. duhhh

 

Way to save it lol

 

So he has to carry 2 spares cause nobody else is gonna be able to lend a spare if he needs it. haha

 

We can wrap and bunch of recovery strap around a 35 until it's tall enough

 

Last flat Craig had was in death valley. Shit was bigger than a golf ball in his sidewall. Perfectly round hole.

 

This is one from the time I wiped out both wheels on the passenger side at once. lol Only had 1 spare. Now I carry 2

 

I always carry 2 full size spares. 4 years hard wheeling, only needed one spare once

 

Yeah the last 10yrs off-roading and had 1 flat until those 2 and the one in DV But Discount Tire has replaced 6 tires for free so far. The others were sidewall damage but still held air enough to get home. But carry 2 spares now.