Dumpster Dive rear disc brake conversion?

I came up with a brilliant idea, go to my local junkyard and find a 4Runner rear disc brake setup to convert my 2010 TRD OR. Tell me if this is a worthwhile endeavor. Is it worth the hassle? Will it be a simple conversion?

Thanks.

 

I would think of you have the right means.
Then nothing is a hassle.
Not sure if the parts will fit, I thought the tundra parts fit?

 

SOS performance ( Tundra Racing ) sells the bracket and park cables for bolt on set up.

 

http://sosperformance.com/products/...dot-ps2-dot-tu6-dot-bpk-fits-2000-2006-tundra
link

 

but why.

what is your reason for wanting to go disc in the rear? Better stopping? tacoma already has better stopping distances than any other mid size truck and those have 4 wheel disc.

Drums are effective and need very little maintenance.

I find myself in 4HI off road quite often not for the extra forward traction but to link the front and rear axles together because the rear WILL lockup before the front without issue.

Without ABS intervening, the rears will lockup on dry pavement before the fronts, i have found this out time n time again.

If you are going to use the excuse of "for better towing stopping"... you are running an ill-equiped trailer w/o proper trailer brakes.

Needless to say unless you are doing trackdays with your truck (which really there are FAR cheaper better vehicles for this purpose) a rear disc conversion is 100% a waste of time and pointless.

 

I guess my truck is different...I find the brakes quite inadequate despite readjusting the rears again just last week.

 

how many miles and what truck (year, n model?)

Have you bled the entire brake system?

 

2010 TRD OR yes did a complete bleed recently

 

70+% of your stopping comes from the front brakes. I'd start there if you think your truck doesn't stop well enough.

 

Stock rotors, a bit of a pad upgrade, proper bedding of the pads, fresh, well bled fluid and fully functional, well serviced caliper and drum hardware should have you stopping just fine.

Most folks who think their brakes don't work well either a) need attention to the things above b) need to start braking sooner

As a ride along performance driving instructor, I've seen many a cone killed due to b)

If your brakes will lock your wheels easily (activate ABS, or lock the tires) that's all they can do. At that point its tire grip to stop the vehicle. And most off road tires don't do that particularly well on pavement.

 

Different strokes. Wheel where there is water and mud and it gets caked in the drums, discs, when wet or muddy, won't do that. Plus it's 2017 and toy is selling $47k Tacoma pros with rear drums.. you can buy a $10k Kia and it has discs all around. That's insane. I have 94k miles and on my 2nd set of drums. Also have you taken the rear drums apart? My hands are big and it's a pain in the dick to get the ebrake cable in and lined up. Discs are much simpler and will practically last forever. Buy once cry once right?

 

You're using the wrong tool.

 

I am definitely going to do some front brake upgrades. I don't think the rear disk option is viable imo. I do agree with poster above put some damn rear discs in Tacomas Toyota!

 

Sure you got all the air out? (might go back and do a small bleed of each corner). also 4x4 or prerunner?

if you are on your 2nd set of drums in 94k, you are 100% DOING SOMETHING WRONG. seriously, buddy has 250k on his 02 4 runner with drum rears, all stock, dad had 240k on his 04 tacoma all stock. every set of rear drum brakes on all different makes and models of vehicles last WAY longer than front disks.

 

Just my opinion, but I believe cars and trucks cost too much now a days to not come with 4 wheel disc brakes. However, drums work just fine and the trouble and expense of converting to disc is too high to be worth it.

 

Another option that will be available or can be sourced:

I will be test fitting 2010 4Runner brakes Calipers on my Tacoma shortly for @Low Range Off-Road paired w/ Stoptech Slotted 4runner replacements (348mm Rotors) and steel lines on all 4. Will flush and replace with

$29 ATE 706202 ATE Original TYP 200 Racing Quality DOT 4 Brake Fluid, 1 Liter Can

ATE 706202 Original TYP 200 DOT (essentially super blue without the dye as its illegal in the US now). Everything should bolt up fine. We had questioned the backing plates which will be replaced with 4Runner version. You also need to have a 17" rim for this to work. Bigger Pistons/Calipers and Bigger Rotors. Hope is for a 20-25% improvement. Similar was seen using Tundra setups on 1st gens.

I will be documenting and posting up the differences. Should be a nice BBK upgrade without going with $2k BBK kits.

 

Some photos of what is going on.

 

Pre runner, yeah did a complete bleed.

 

Still sounds spendy

 

Not sure what the cost would be they would or what they would sell it for but I would think way cheaper than $2k which is the idea of putting the kit together or you would just go with the full Stoptech or other BBK. At a minimum upgrading pads, steel lines and a fluid flush would generate improved results. My brakes feel like crap even more after a lift and bigger tires. The lines alone will help with pedal feel.

I too was thinking of the rear conversion but as most have pointed out, we may actually lose braking in the rear compared to the stock setup.