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. L…
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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.
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.
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.
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...
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.
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.
Tom1200
PowerDork
2/28/25 3:48 p.m.
In reply to David S. Wallens :
I used the carbon LSD clutches in my Foxbody. They work a treat.
In reply to Tom1200 :
Yeah, good to hear. Plus they’re specifically allowed in the class, too.
In reply to David S. Wallens :
Rear diff fluid was free? Re-used the old fluid?
It was great to see Chris and Paris take lead on a fairly big job for new mechanics--albeit a fairly straightforward one since these cars are so darn simple. Aside from hammering in the new bearings, I hardly touched the car, and they handled everything. I think this project is in good hands when the modifications begin in a few weeks. Can't wait to hear what they think about the process of building a race car.
SeniorPBA2B said:
In reply to David S. Wallens :
Rear diff fluid was free? Re-used the old fluid?
We could have re-used the fluid (we'll be back in this diff in a few months) but I have a seemingly neverending stockpile of 75-140 gear oil taking up space on the shelf. We added a few quarts of that.
In reply to David S. Wallens :
Sorry, I do not trust c-clips in any 8.8 solid axle. Seen too many axles decide to split from the housing. No thanks.
In reply to Ranger50 :
That's the nice thing about discs. The caliper can retain the axle.
Of course, the downside is that as the clutches wear, axle endplay increases, which leads to piston knockback. I measured .250" of endplay on one rearend in a Ranger with severely worn clutches. 'Course, it had drum brakes, which didn't care about no steenking endplay.
No, I don't know how the C clips didn't fall out, either!
Ranger50 said:
In reply to David S. Wallens :
Sorry, I do not trust c-clips in any 8.8 solid axle. Seen too many axles decide to split from the housing. No thanks.
The Club Spec Mustang rules currently don’t permit that change.
In reply to David S. Wallens :
Do the rules allow putting a drain port in the rearend cover? It sounds like rebuilding the diff clutches is a regular practice, if so then this makes life a lot less messy.
In reply to Pete. (l33t FS) :
I don’t believe we can add one.
And, here, the Club Spec rules:
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Big thing was also getting/keeping the car mobile while we wait for all of the parts necessary for the transformation. This is a 20-year-old Mustang with an unknown backstory. We didn’t want it to sit too long....
With that wording, even a bonded metal-rubber (reuseable) cover gasket would seem to be not allowed since it's not "essentially identical".
Sadly, they put the all important "comfort and convenience" specifically in bodywork and interior.