Brakes: Our 20-year-old Mustang was nearly metal-on-metal

Chris
Update by Chris Tropea to the Ford Mustang GT project car
Feb 28, 2025 | Ford, SCCA, Ford Mustang, SCCA Club Spec

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Photography by Chris Tropea, Tom Suddard and Paris Van Gorder

As we rolled away in our 20-year-old Mustang, the seller mentioned that it might need a new rear wheel bearing. Sure enough, on the drive home, we could hear it howling away.

Add that to the list.

After a few days of very moderate driving, we saw that the rear brake pads were totally finished. Luckily for us, the brakes have to come off to do the bearings.

With the brakes removed, we could get started on the rear wheel bearings. We first needed to open the diff cover, drain the fluids, and pull the axles. We had all the parts required for less than $50.

Since we don’t spend much time inside of Ford 8.8-inch rear ends, we also needed the correct bearing puller. We borrowed one.

Now with all the correct tools in hand, finishing the repair only took a few hours. Remove and reinstall the bearings. Clean all the old sealant off the diff and cover. After sliding the axles back into place, we could reinstall the C-clips and retaining pin. Finally, reinstall the diff cover.

While waiting for the for the Permatex to dry, we could move back to finishing the brakes. Typically, we would put a motorsports pad on the car, but since we’re still getting baseline numbers, we went with a set of OEM replacements for a total of $38. This move also quickly gets the car back on the road. Proper pads have been ordered.

After letting the sealant dry for 24 hours, we refilled the rear end with gear oil, checked for leaks, topped off the brake fluid, and had a daily-drivable S197 Mustang GT.

Soon we will start our Mustang’s transformation into SCCA Club Spec autocross specs. Parts have been arriving. Until then, we are going to put some street miles on the car.

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Comments
Floating Doc (Forum Supporter)
Floating Doc (Forum Supporter) GRM+ Memberand MegaDork
2/28/25 12:26 p.m.

I understand that you're trying to baseline the car first, but I would expect you're going to be back in there to do clutches on the limited slip. 

It's a frequent topic of discussion on the CSM page. Apparently, they wear out quickly.

David S. Wallens
David S. Wallens Editorial Director
2/28/25 12:32 p.m.

Oh, yes, and our LSD needs fresh clutches. 

At this point, we just wanted to get the car back on the road. The rear brakes were bad–to the point where it was just about time to park it. 

Chris Tropea
Chris Tropea Associate Editor
2/28/25 12:34 p.m.

I have been driving the car for about a week now and have to say, its not a bad place to spend time. I am really enjoying the simplicity of it, also the noises coming from the tailpipes are really good. 

Ranger50
Ranger50 MegaDork
2/28/25 12:38 p.m.

9" ends, 35 spline, spool. 😁 although I know a few folks that will make you a 9" ready for a 10" ring gear... 

If doing a bearing, I splurge for a new axle too. It's easy to condemn the bearing for noise, but after replacing the bearing there is still a noise...

David S. Wallens
David S. Wallens Editorial Director
2/28/25 1:12 p.m.

In reply to Ranger50 :

Club Spec Mustang rules require the stock 8.8, although we can install the upgraded carbon clutches from Ford. 

Some of the specs parts have arrived with more on the way. 

APEowner
APEowner GRM+ Memberand UltraDork
2/28/25 1:35 p.m.
Chris Tropea said:

I have been driving the car for about a week now and have to say, its not a bad place to spend time. I am really enjoying the simplicity of it, also the noises coming from the tailpipes are really good. 

Simple with nice V8  sounds.  I miss having a vehicle in my fleet that matches this description.  I could buy one but it would just sit most of the time and that seems wrong.

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