2wd prerunner supercharged full size bed. Lsd options.

Hi I'm Richard and this is my first post. I've been building cars and trucks since I got my license at 15. I got a 2015 tacoma prerunner 2wd full size bed. It's a work truck but I put a supercharger from magnuson because I could go sema in 2020. I lowered the truck but I want to put a rear end if I can make a difference in performance. If that makes sense? I don't go off-roading i.e.its dropped 3/5". I know it has the auto electronical lsd....but I want to do more. I want to get a 4runner rear end to have disk brakes. With a manual locker for the rear so I can do burnouts or drift a little. Lmk if you have opinions and comments. I have picks of my truck and dynos so far with the mag supercharger with intake and catback Flowmaster Duel outs. Thanks for reading.

 

I’m sure you know that the rear end from a 4Runner will need work to make it fit. We have leaf springs, and the 4Runner has coils. And they have 4 control arms connecting to the axle. So it’s a little different.

they do make disc conversion for the rear.

best bet for performance would be putting a higher gear rear end for quicker acceleration. And while they are changing the gearing, they can put in a locker.

 

If you figure out a way to affordable put rear discs and lock them I’m excited to see

I once bought a front BBK for a different car at a junkyard for $60
Which ended up costing $10 after I sold the good shape Akebono Euro Ceramic pads for $50

$700+ for these kits to put what’s basically basic common and regular on every other vehicle is insane

last time I asked how to lock the back brakes I got flamed by people too scared to know how to control their truck and have fun. So good luck

it’s pretty common on any sort of performance vehicle. Stunt driving. Drifting. Rally cars. Which the Tacoma is naturally capable of doing by design, unlike most vehicles. The drivers/owners is another story.

sometimes people will put a second set of calipers. Small ones. For the locking. Connected to a handle in the interior.
It adds weight.

I don’t know if suddenly locking the back like that would harm anything besides tires. Like how the engine diffs etc handle that.

one sketchy thing to figure out is how to have a reliable parking brake. Normally you might have a strong cable that’s hard to cut/sabotage.
But if you change it to only hydraulic instead of a physical cable you end up relying on it holding fluid pressure. Which is never good to keep high pressure for a long amount of time. Nor is it safe because seals can fail, pressure will bleed off, then the truck will start rolling off.

disc brakes seem easier to maintain. No drum to take off or wheel cylinders to fail. No park brake adjuster.

some cars had it integrated into the calipers where the cable pulls on a twist lever that compresses the caliper.
Or now cars have it as electronic with a button. Which in emergency use slams on it and doesn’t have fine control.

some cars have the option of a tiny park brake caliper like Jaguar Audi R8/lambo Dodge Viper etc that you can find used but it may not be big enough to lock it up driving and is normally just used as a park brake because it’s so tiny.

sounds like it would be useful off road. Imagine climbing up rocks on a hill in manual. You could pull the handle to keep the truck stopped while you let out the clutch to bite before release/going
And tight turns, with the Tacoma wheelbase and bad turning radius.
Like a u turn in the rain. Just yank the handle real quick

maybe swapping a 4Runner rear end would be the simplest way to do it.
Then you gotta figure out which diff housing size you want. 8” vs 8.4” etc

you'll also have to figure out brake force distribution. Engineers design/calculate this based on rotor size, piston size, sometimes include a proportioning valve, etc.
whether you're distributing it 60/40 or something else
to keep every brake working maximally, not prematurely locking up a tire or the opposite, not braking enough
controlling nose dive, etc.
(different brakes = different sizes)

 

Welcome!

There's a lot of go-fast knowledge from the guys in the Supercharger thread https://www.tacomaworld.com/threads/trd-magnuson-4-0-supercharger-tips-tricks-and-mods.518932/

And more in the Street Trucks forum https://www.tacomaworld.com/forums/street-trucks.70/

You may also like the X Runner forum https://www.tacomaworld.com/forums/x-runners.29/

 

Detroit TrueTrac. Welcome