Any Adverse Affections of Wheel Spacers?

Will your brakes currently grab quick and hard enough to activate ABS? If no, you have a system problem. If yes, bigger *might* make it fractionally faster, but again, once you are clamped hard enough to engage ABS........

The reason I asked was to try and determine what solutions might help solve a problem for you. Root cause is kinda an ingrained thing for me.

I'll see myself out now.

 

Just check your lugs a couple hundred miles after putting the spacers on..

 

Not trying to be rude but that wheel and tire combo isn't really the type of setup that needs spacers and bigger brakes behind it.

That's like putting expensive disc brakes on a $80 Husky mountain bike you found on Craigslist

That being said, I had .75 Bora spacers and 32 or 33 inch LT tires on my truck for over 160,000 miles and my wheel bearings are still fine. And I drive in snowy/road salt conditions all winter

 

No I was just saying to install the rotor and pad kit for your truck. Imo unless you’re gonna get 20% + in better stopping distance , I see no need to spend the money on calipers and the other ended items to do the 4Runner swap.

 

Look at the Powerstop brake upgrade too, that have three options for our trucks.

 

Scrub radius! You may clear your new caliper but you may start rubbing your frame and/or inner fender liner! Even with 0.75" spacers I had to cut/bash inner liner to stop rubbing.

 

THis dude did 4Runner big brake swap and put on a Tundra Master cylinder according to them seemed like they noticed a pretty big improvement. Do not understand how using a Tundra MC is improving braking performance though. The vacuum booster looks the same size to me and i thought that the Tundra MC bore was larger than Tacos so wouldnt that decrease the force for a given amount of brake pedal travel? In other words you would have to press the TUndra MC harder in order to get same amount of force from a Taco MC ?

 

Maybe i missed it but all the Powerstop options looked like had same caliper piston sizes as a stock Taco caliper does. The rotors are not even bigger on the kits i found. Why do with a slotted rotor stock diameter when i could go with a 338 mm rotor thats slotted and/or drilled too?

 

You had clearance issues even with stock sized tires ??

 

OP needs spacers to fit 4runner brakes with a 16" wheel. 4runners use 17" wheels, but OP doesn't want to change.

Imo, if you need to push the wheel so much farther out to clear a caliper meant for a 17" wheel, you should just upgrade to the bigger wheel. Then you wont need to run a spacer, which could in the long term save your wheel bearings and potentially safer to drive.

I don't think anyone here has experience with pushing the wheel that far out. You may want to research putting a 15" wheel on vs the stock 16". I vaguely remember someone trying to do that, and the spacer issue should be similar?

 

Just reiterating that bigger/better etc brakes aren't going to help with those tires. Brake "feel" is ambiguous, and doesn't necessarily correlate to actual stopping distance. (threshold braking is another factor but I don't think you're caring about that considering its a truck lol)

If I were you I would 100% start with grabbing a set of wheels off marketplace, lots of OEM alloy take offs that would look better, not rust like those steelies, and you could probably find a set with actual quality tires on it, even if they're not brand new. You could even find ones in 17" if you want to be able to do the brake upgrade down the road. The quality BORA/spidertrax spacers that you would be okay running are actually pretty expensive, and I think your money will be better spent getting some good tires and fresh pads and a brake fluid flush/bleed to see how you like it, you might be surprised.

 

stock 16" rim but put on pizza cutter tires (255/85/16) Cooper Discoverer ST maxx

 

My tires cut cookies too. We can cut cookies together for XMAS !

 

If you can the same performance from a performance rotor, pads and calipers that you would from going bigger it’s just seams easier.

 

Someone correct me if I’m wrong when doing the 4Runner upgrade you also need to change backing plates correct?

 

You mean the dust shield ? Because I will just trim that.

 

I'd wait until my tires were worn out and go to 17" wheels.

 

New tires were like 600 going with 17 wheels would easily probably cost me $2K. Then id still have to pay for brakes. Also i looked at Powerstop and their calipers pistons are same size as a stock Tacos not sure how that would help me. THey sell slotted cross drilled rotors but again not any bigger than stock.
Stop tech is only one seems to have a better caliper thats 6 six piston of course im sure i have to buy their rotors too which arent as big as 4runners.

 

I think you're missing a lot of people's points, based on your picture your tires are likely the weakest point of your braking system. Assuming your brake system functions properly, no matter how big of brakes you "upgrade" to, you're not really gonna stop any faster. The brakes rely on friction between the tires and the road surface to slow the truck down, so if you have cheap tires with sub par traction, you're just gonna be sliding and engaging ABS. If you aren't locking up your tires/engaging ABS then push the pedal down harder until you do. If you can't, then you probably have a brake system issue. Start with fresh fluid, then maybe pads, etc.

 

Seems like you’re stuck on the idea bigger will make me stop faster is the only way. What if the power stop system will stop you just as quick and the 4Runner set up and you dont have to worry about wheel size, clearance, spacers or trimming the dust shield. Why would you just go that route?