Avanti Rotor!

[mfg]

If I needed a front brake rotor for a 1985 Avanti, I'd probably go to my local 'flaps' store and ask for a 1983-84 Ford Mustang brake rotor...True?

[pantera928]

true

[mfg]

4 hours ago, pantera928 said:

true

Sorry, the answer here is false!

[pantera928]

21 hours ago, mfg said:

Sorry, the answer here is false!

The old 50/50/90 rule strikes again

[mfg]

18 hours ago, pantera928 said:

The old 50/50/90 rule strikes again

50/50...always worth a try!!

[silverstude]

85 Camaro rotor

[mfg]

On 10/3/2022 at 12:22 PM, silverstude said:

85 Camaro rotor

Yep, that's it!

[pantera928]

24 minutes ago, mfg said:

Yep, that's it!

So I guess that did not include the hub since the bolt pattern is different.

[mfg]

2 hours ago, pantera928 said:

So I guess that did not include the hub since the bolt pattern is different.

They indeed included the GM hub...then used adapter plates to convert bolt pattern.

[Geoff]

Okay, whoa. Wait a second. I haven't gotten into the deep tear down on my car, but you mean to say there are 5 on 4.75" rotors on Blake Avantis, and then an adapter mounted on top to revert to the 5 on 4.5" pattern?

I'm converting to 5 on 4.75" when I switch to C4 'Vette suspension, but next spring I'll find the tear down a little more interesting.

Now to bring relevance from mfg's original post: If anyone wants 1985 front rotors, I will have two takeoffs I will not need.

[mfg]

1 hour ago, GeoffC312 said:

Okay, whoa. Wait a second. I haven't gotten into the deep tear down on my car, but you mean to say there are 5 on 4.75" rotors on Blake Avantis, and then an adapter mounted on top to revert to the 5 on 4.5" pattern?

I'm converting to 5 on 4.75" when I switch to C4 'Vette suspension, but next spring I'll find the tear down a little more interesting.

Now to bring relevance from mfg's original post: If anyone wants 1985 front rotors, I will have two takeoffs I will not need.

Hi Geoff..yes, Avanti definitely used adapters to convert the GM bolt pattern to 'Stude Style'!

There was a factory recall...the earliest adapters were made of aluminum and developed cracks  in use......The later adapters (as on my '85) are made of steel.