1990 4x4 Front Brake Rotor Replacement

JAT

New member
Hi Everyone.
I am trying to replace the two front brake rotors on my 4x4 1990 4runner. I have replaced the pads already, but I don't know where to begin with the rotors. If anyone has a link to a thread with pictures or another website with a walk through(pics would help) I would really appreciate it.
Thanks
 
Register to hide this ad
You have to remove the hubs and unbolt the rotors from the back of the hubs. Best bet is to get yourself a Haynes manual and go for it. You'll need a 54mm socket and a torque wrench too. Other than that it's pretty straightforward. Don't forget new seals and grease. Might as well repack the bearings as long as you have the hub off.
 
I tried replacing a bad cv joint + axle and never did get those hubs off! I had a haynes and a chiltons. I've probably bailed on a repair 4 times in my life and that was number 4. I took it to my great mechanic. He did the rotors, bearings, axles and aligned the whole thing for around $1,000. So my front end is good for another 200thou. It was well worth the money.

I hope you have better luck getting those hubs off then I did (I have a 90 with a 3.slow). In hindsight, the manuals were almost worthless as far as detailed information goes. Perhaps a better manual or some good advice from the pro's would make it easier.

Good luck to ya.
 
Replacing Front Rotors on a 2nd Gen 4x4

First off: Sorry reviving an old thread but, I could not find any updated thread, as it seems no one around here really cares. If I can find this thread, then some with the same question might benefit from the information.

It's been a couple of months and a lot of procrastinating, and the 2 month heat wave finally subsided in SoCal. I got around to start replacing my warped rotors on my '93 4x4.

My first hurdle was removing the Lock Hub. The six 12mm nuts were a breeze, but the cone lock washers were a PITA. I ended using a 3 lb hammer from the local Harbor Freight. After removing the Lock Hub, I noticed there was a paper gasket, that no one told me about. It would have been OK had the gasket been intact but it tore and was stuck to the lock hub and hub assembly. I continued my disassembly to get the rotor replaced. The rest was a breeze. I removed the axle nuts and lock washers. Pulled off the rotor/hub assembly, after gently removing the brake caliper. (BTW, There is a YouTube video on how to remove the brake caliper assembly.) Removed the six 14mm bolts that hold the rotor to the hub assembly. Installed the new rotors from RotorsWorks (cross drilled and slotted). Re-assembled the whole thing, less the gasket, which I found is not available from the any parts store. I had to special order it from the Toyota Dealer. Part No. 4342260010

Before replacing the lock hub, I scraped off the remaining gasket off with a razor blade and box cutter. Then reassembled the lock hub assembly, less the gasket. I wanted to get the wheel back on while I wait for the gasket to arrive at the dealer in a couple of days. Since I got over the big hurdle of getting the lock hub assembly off, I figure it would be a breeze the next time. Also, just in case I needed to use my Truck in the mean time. I only finished the one side, since it's no use doing the other side without a gasket.

In the following days, I'll post photos of the other side dis-assembly and replacement.

On a side note: Just in case someone wants to add Manual Locking Hubs, this is a good time to do it. I wanted to change mine but, I have not found a set I like and I really needed to replace my rotors, badly. There are 26 Splines on my axle, just in case someone needs verification.
 
Let's make this quicker. There is a stickie at the top of the Classics forum. Look on the last page of that thread and there is a link to a series of videos that shows the whole process step by step.
 
brakes/rotors/pads .....

First off: Sorry reviving an old thread but, I could not find any updated thread, as it seems no one around here really cares. If I can find this thread, then some with the same question might benefit from the information.

It's been a couple of months and a lot of procrastinating, and the 2 month heat wave finally subsided in SoCal. I got around to start replacing my warped rotors on my '93 4x4.

My first hurdle was removing the Lock Hub. The six 12mm nuts were a breeze, but the cone lock washers were a PITA. I ended using a 3 lb hammer from the local Harbor Freight. After removing the Lock Hub, I noticed there was a paper gasket, that no one told me about. It would have been OK had the gasket been intact but it tore and was stuck to the lock hub and hub assembly. I continued my disassembly to get the rotor replaced. The rest was a breeze. I removed the axle nuts and lock washers. Pulled off the rotor/hub assembly, after gently removing the brake caliper. (BTW, There is a YouTube video on how to remove the brake caliper assembly.) Removed the six 14mm bolts that hold the rotor to the hub assembly. Installed the new rotors from RotorsWorks (cross drilled and slotted). Re-assembled the whole thing, less the gasket, which I found is not available from the any parts store. I had to special order it from the Toyota Dealer. Part No. 4342260010

Before replacing the lock hub, I scraped off the remaining gasket off with a razor blade and box cutter. Then reassembled the lock hub assembly, less the gasket. I wanted to get the wheel back on while I wait for the gasket to arrive at the dealer in a couple of days. Since I got over the big hurdle of getting the lock hub assembly off, I figure it would be a breeze the next time. Also, just in case I needed to use my Truck in the mean time. I only finished the one side, since it's no use doing the other side without a gasket.

In the following days, I'll post photos of the other side dis-assembly and replacement.

On a side note: Just in case someone wants to add Manual Locking Hubs, this is a good time to do it. I wanted to change mine but, I have not found a set I like and I really needed to replace my rotors, badly. There are 26 Splines on my axle, just in case someone needs verification.

I found the factory Toyota Manual set was worth every penny when I did that job on our 1990. There is no doubt, probably not a job for the faint of heart, or those who can't follow factory specs(loads of them). There were a number of gaskets and lock rings I special ordered from the local dealer.
regards
 
If you have tools, a Factory Servics Manual, and can read, you can fix anything on your truck. It's the best investment you make after your truck.
 
Let's make this quicker. There is a stickie at the top of the Classics forum. Look on the last page of that thread and there is a link to a series of videos that shows the whole process step by step.

That's a pretty good video, lots of great tips. What it lacked was part numbers.


I found the factory Toyota Manual set was worth every penny when I did that job on our 1990. There is no doubt, probably not a job for the faint of heart, or those who can't follow factory specs(loads of them). There were a number of gaskets and lock rings I special ordered from the local dealer.
regards

I've run across a couple of part numbers for the same flange gasket while doing research on my soon to be Manual Locking install. The part I had ordered for my truck was 43422-60010, when I swap out the lock hub flange, for a manual locking hub, the part number is 43531-60010. Are they the same part, just different numbers?

Here are some pictures of the other side:

2mcf7rd.jpg

The rust is due to American Racing center caps. Another reason to switch to manual locking hubs.

One thing I wanted to point out, is the brake pads. Most people replace the pad pretty much the same way they took them out. (if they remember correctly.) Though they will pretty much work either way, except the incorrect way is a bit harder to push the pins back in. Here is a photo to set the record straight.

5ecy2t.jpg


Finished:
ju8zyw.jpg

Sorry for the dark picture, it was getting dark by the time I finished.
 
Last edited:

Members online

Forum statistics

Threads
278,310
Messages
3,554,078
Members
248,016
Latest member
Advally Service

Trending content

Back
Top