Hey guys,

I was watching an episode of Trucks on spike and they upgraded the rear drum brake cylinders on one of their project trucks.

Has anyone ever did that with an 1987 4runner?

Thank you..

 

Are you talking about the brake booster and master cylinder ?, if so, ive done it on my 86 4Runner, and it does make a diference in braking.

 

1" master from a 2nd gen?

 

adding a Brake booster from turbo truck or T100 (dual diaprahm) will do wonders for you.

 

I used a brake booster (duel diaprahm) and master cylinder from a 93-94 4Runner, its a direct bolt in.

 

Thanks for the input but I was refering to the brake cylinders that are on our rear drums.

 

the wheel cylinders, u mean. that one im not sure.

 

Ive heard that you can use the wheel cylinders from a T100, there bigger and will help braking. Ive never tryed this, i just read here in the forums. If you try it and it works, let us know.

 

I looked and cannot find that thread.

By any chance to you remeber the thread?

Thank you...

 

sure you can upgrade the wheel cylinders but consider upgrading the booster too so that your MC can push more pressure to the bigger cylinders...

 

im tempted to do that on my rig, if i do it ill let u know.
....then again im tempted to mcguyver the air conditioning system from a ford expedition (oooooo so cold!) into my rig, lol. whichever takes priority.

 

Convert to rear disc

 

Here I thought this thread was about upgrading the front calipers to ones equipped on later V6-models.

 

You can upgrade the rotors and calipers on your truck, do a search, theres a write up on it somewere on here.

 

oh, I know. I was hoping that's what this thread was about so that I could point it out.

 

For 4 Runners, the 86 model has different rear wheel cylinders than the 87-93 models.
I was sure I had an '87 rear axle, but the replacement wheel cylinder inner piston set-up was too wide. physically, the outer dimensions looked the same, but when bolted in place, the pistons don't collapse in far enough....so the shoes are out further and won't let you install the drum....

trying a '86 set tonight if they match the ones that were on it....

 

picked up the '86 wheel cylinder at lunch, and it is the one I needed...

 

Yea i have WITH A NEW OEM ONE!!!!!